英译汉论文翻译
英译汉佳作欣赏
英译汉:佳译赏析巧选主语成妙译(1)原文】饱经沧桑的20世纪仅剩下几个春秋,人类即将跨入充满希望的21世纪。
【译文】I n a few years’ time, mankind will bid farewell to the 20th c entury, a century full of vic issitudes, and enter into the 21s t c entury, a c entury full of hopes.【赏析】1995年,联合国举办纪念成立50周年庆祝活动,江主席出席并发表演说。
原文是该篇演说的第一句,是地道的汉语。
翻译此句时,一般译者往往会亦步亦趋地将原文译为两个分句,分别以“饱经沧桑的20世纪”和“人类”作主语。
但高明的译者吃透了原文的精神,选择mankind为主语统领全句,以准确而地道的英语译出,确实是一则难得的佳译,值得翻译爱好者认真体会。
英译汉:佳译赏析之“肚里的墨水”(2)【原文】T heir family had more money, more hors es, more slaves than any one els e in the Country, b ut the boys had less grammar than mos t of their poor C racker neighbors.【译文】他们家里的钱比人家多,马比人家多,奴隶比人家多,都要算全区第一,所缺少的只是他哥儿俩肚里的墨水,少得也是首屈一指的。
【赏析】原文选自Gone With the Wind。
译文忠实且流畅,算得上好译文,特别值得一提的是译者对grammar的处理,如果照搬字典自然难于翻译,但译者吃透了原句精神,译为“肚里的墨水”,真是再妥帖不过了。
英译汉:佳译赏析之“思前想后”(3)【原文】A nd in these meditations he fell asleep.【译文】他这么思前想后,就睡着了。
名篇名译(英译汉)
名篇名译0011.原文:It is an ill wind that blows nobodygood.译文:世事皆利弊并存。
赏析:原句结构比较特殊("Itis…that…"),理解起来有点困难。
“对谁都没有好处的风才是坏风”,也就是说大多数情况下风对人都是有好处、有坏处,在引申一步就是成了上面的译句。
林佩耵在《中英对译技巧》一书中(第68页)还给了几个相同结构的英文句子。
翻译的前提是理解。
有人指出。
市面上见到的翻译作品,有好多都带有因理解不正确而产生的低级错误,“信”都谈不上还妄谈什么“达”和“雅”!初学翻译的朋友,在理解原文上当不遗余力。
2.原文:Their languag e was almostunrestr ainedby any motiveof prudenc e.译文:他们几乎爱讲什么就讲什么,全然不考虑什么谨慎不谨慎。
赏析:如果硬译,译文势必成了“他们的言论几乎不受任何深思熟虑的动机的约束”。
译者本其译,化其滞,将原句一拆为二,充分运用相关翻译技巧,译文忠实、通顺。
3.原文:Get a livelih ood,and then practis e virtue.译文:先谋生而后修身。
(钱钟书译)赏析:原句是祈使句,译句也传达出了训导的意味。
用“谋生”来译“Getalivelih ood",用“修身”来译“practis e virtue",可谓精当。
巧的是,原句七个词,译句也是七个汉字。
4.原文:I enjoy the clean voluptu ousnes s of the warm breezeon my skin and the cool support of water.译文:我喜爱那洁净的暖风吹拂在我的皮肤上使我陶然欲醉,也喜爱那清亮的流水把我的身体托浮在水面。
四级英汉互译作文模板
四级英汉互译作文模板英文回答:Instructions for Level 4 English-Chinese Mutual Translation Composition Template。
1. Word Count: The article should be at least 2000 words in length.2. Language Pairing: The article should be written in both English and Chinese.3. Formatting: The article should be formatted as follows:English Text: Written in English, with proper grammar and punctuation.Chinese Translation: Written in Chinese, with proper grammar and punctuation.4. Organization: The article should be divided into two main sections:Translation: The English text should be translated into Chinese.Reverse Translation: The Chinese text should be translated back into English.5. Assessment Criteria: The article will be assessed on the following criteria:Accuracy: The translations should be accurate and convey the meaning of the original text.Fluency: The translations should be fluent and natural sounding.Comprehensiveness: The translations should coverall of the content of the original text.Template:Translation。
专八英译汉段落翻译_中英文对照
专八英译汉段落翻译完整版.中英文对照My First JobWhen I reached the age of twelve I left the school for ever and got my first fulltime job, as a grocer' s boy. I spent my days carrying heavy loads, but I enjoyed it. It was only my capacity for hard work that saved me from early dismissal, for I could never stomach speaking to my “betters” with the deference my employer thought I should assume.But the limit was reached one Tuesday 一 my half holiday. On my way home on that day I used to carry a large basket of provisions to the home of my employers sister-in-law. As her house was on my way homeI never objected to this.On this particular Tuesday, however, just as we were putting the shutters up, a load of smoked hams was delivered at the shop. "Wait a minute, “ said the boss, and he opened the load and took out a ham, whichhe started to bone and string up.I waited in growing impatience to get on my way, not for one minute but for a quite a considerable time. It was nearly half-past two when the boss finished. He then came to me with the ham, put it in the basket beside me, and instructed me to deliver it to a customer who had it on order.This meant going a long way out of my road home, so I looked up andsaid to the boss: "Do you know I finish at two on Tuesday?I have never seen a man look more astonished than he did then. u What do you mean?n he gasped. I told him I meant that I would deliver the groceries as usual, but not the ham.He looked at me as if I were some unusual kind f insect and burst into a storm of abuse. But I stood firm. He gave me up as hopeless and tried new tactics. "Go out and get another boy, “ he yelled at a shop assistant.u Are you going to deliver them or not?” the boss turned to me and asked in a threatening tone. I repeated what I had said before. "Then, out of here, “ he shouted. So I got out.This was the first time I had serious trouble with an employer.1我的第一份工作当我十二岁时我永远地离开了学校,同时得到了我的第一份全职工作,作为一个食品杂货商的见孩。
文学翻译(英译汉)
I thought of that one evening as I was driving. The moon, one day short of fullness, rode with me, first gliding smoothly, then bouncing over the bumpy stretches, now on my right, then straight ahead, the silver light washing over dry grasses in open fields, streaking along through black branches, finally disappearing as the road wound its way through the一轮满月晃晃悠悠地悬浮在上面,离我们那么近,仿佛就要掉下来撞到我们身上。它光华照人,比前一天晚上还大,更令人心驰神往,在熔银般的水塘上空悄悄地爬升。就连十岁的孩童也能看出,这不仅仅是个月亮。这是个大写的月亮。
我转过身,只见约翰正咧着嘴笑,满脸期盼的神情;他热切的目光想从我的脸上探明他是否博得了我的欢心。他确实博得了我的欢心。我意识到现在月儿也正在随他同行。
(方杰译)
讲解
这是一篇非常优美的关于月亮的散文,它将细腻的描写和真挚的情感及人生感悟交融在一起。翻译这样的文章,译者不仅要译出基本信息——字面上的意思,还要译出原文的韵味。这就需要在选词、句式安排及形象化词语的运用上仔细琢磨,不仅要注意字、句上的局部效果,更要注意段落、篇章的整体效果。
John blinked a few times and looked at me as if I might, indeed, be loony. “Mom, it’s just the moon. Is this the surprise?” I suppose he was hoping for a puppy.
英语专业全英毕业论文(汉英公示语翻译)
本科毕业论文题目:On English Translation of ChinesePublic Signs 院(系):外语系班级:英语级班姓名:学号:指导教师:教师职称:汉英公示语的翻译摘要公示语向来被称作“城市的脸孔",是给所有到中国来的外国人士留下第一印象的中国名片。
然而,公示语翻译的错误比比皆是,这大大影响了公示语作用的发挥,削弱了我国的国际形象。
为了树立我国良好的国际形象,不断规范和完善城市公示语的翻译成为了一项亟待完成的工作。
基于以上原因,作者尝试从理论和实践的角度分析现今汉英公示语翻译中所存在的一些问题。
通过对大量标准以及问题公示语翻译的深入观察分析,作者对公示语的一般特征进行了总结并对公示语翻译中出现的问题进行了分类,从而在实践观察和对相关理论深入研究的基础上提出相应的翻译策略。
翻译并不仅仅是跨语言行为,它更是一种文化信息的传递。
公示语的翻译同样如此。
得体的公示语翻译不仅在语言上要无懈可击,在文化信息传递上也要雅俗共赏。
本文还对公示语的概念做出了解释,并根据目的需求与功能两种标准对公示语做了分类。
在介绍公示语的特征时,作者将其分为语言特征与功能特征,特征与分类不同,也决定了需要采取不同的翻译策略。
关键词:汉英翻译;公示语;问题;翻译策略On English Translation of Chinese PublicSignsAbstractPublic signs, which have alway s been referred to “face of city”, are the first impression of China for the people who come to China. However, the ubiquitous translation mistakes of public signs greatly undermine the international image of China. So,specificating and constantly perfecting the translation of public signs have become an urgent work in order to establish a good international image.The paper ventures an attempt to analyze the current problems existing in the C-E translation of public signs and to seek proper translational strategies both from the perspectives of theory and practice.By closely observing numerous samples of both standard and problematic translation of signs,the author manages to generalize the characteristics of public signs and to categorize the problems and mistakes in the current C-E translation of public signs.Then, proper translational strategies are proposed on the basis of in-depth study of relevant theories and keen observation of practice.Translation is not merely a cross-linguistic activity, but more of a transmission of cultural information.The translation of public signs is no exception.An appropriate translation of public sign should not only belinguistically correct, but also culturally acceptable.This paper expresses the meaning of the public signs and classify the signs according to the standards of objective demand and function. And the characteristics of the public signs are different studied from linguistic features and functional features,which determines to adopt different translation strategies.Key words: Chinese-English translation public sign problems translation strategyContents摘要 (I)Abstract (II)CHAPTER I Introduction (1)1.1 O bjective of the study (1)1.2 Significance of the study (1)1.3 Structure of the paper (2)CHAPTER II General Introduction to Public Signs (3)2.1 Definition of Public Signs (3)2.2 Functions of Public Signs (3)2.2.1 Directing function (4)2.2.2 Prompting function (4)2.2.3 Restricting function (4)2.2.4 Compelling function (5)CHAPTER III Analysis on Problems in C-E Translation of Public Signs (6)3.1 Linguistic translation problems (6)3.1.1 Spelling errors (6)3.1.2 Grammatical errors (6)3.1.3 Wrong dictions (7)3.2 Cultural translation problems (7)CHAPTER IV Strategies of C-E Public Signs Translation and Requirementfor Translator (9)4.1 Principles of C-E translation of Public Signs (9)4.1.1 Clearness (9)4.1.2 Conciseness (10)4.1.3 Simple words (10)4.2 Methods of C-E translation of Public S igns (11)4.2.1 Modification (11)4.2.2 Addition (11)4.2.3 Omission (12)4.2.4 Mutual transformation of affirmative and negativee xpressions (13)4.3 Requirement for the t ranslators (13)CHAPTER V Conclusion (15)Acknowledgements (16)Works Cited (17)CHAPTER I Introduction1.1Objective of the studyThe research objective of the study is to examine the translation problems in the Chinese-English public signs translation and further propose the translation strategies as well as principles suitable for specific groups.The studies begin with the careful and long period of observation of the problems existing in the public signs translation. On the basis of the classification of the translation errors proposed by Christiane Nord, the author aims at the most appropriate translation strategies for each type. With the examination of sufficient sources, the author finds that it is not difficult to eliminate the errors at linguistic level since the text of the public signs is less complex than documentary and other instrumental texts due to its conciseness and directness features (Ni 18).1.2 Significance of the studyPublic S igns affect people’s life in a tremendous way. When somebody smokes, it is the public sign that stops him. In fascinating and mysterious spots where we have never been to, it is the public sign that teaches us related knowledge. Foreign visitors from all walks of life,such as entrepreneurs,professors,students and tourists come to China for various purposes.But for most of them,they know little about Chinese.In this case,it is necessary to translate Chinese public signs into English for the convenience of these foreign visitors.In this case, a proper translation helps establish a good image of China and enhance the cultural communication.1.3 Structure of the paperThe paper is structured with five chapters:The first chapter is a general introduction to the thesis, including the objective of the study, the structure of the thesis and the significance of the study. The second chapter makes a general introduction to public sign, including the definition and functions of public sign. The third chapter focuses on the problems of C-E translation of public signs from linguistics and cultural perspectives. The fourth chapter deals with translation strategies of C-E public signs in connection with principles, methods and the standardization for the translators, including modification, addition, omission and mutual transformation of affirmative and negative expressions. And the fifth chapter draws a conclusion to the paper,in which the author appeals for translators and scholars to make contributions to the C-E translation of public signs.CHAPTER II General Introduction to Public Signs2.1 Definition of Public SignsPublic Signs,which are usually called“signs”,include public notices,advertisements,slogans and expressions on the public signs.Public signs refer to “signs” in English and are defined in different ways.Ac cording to Longman Dictionary of Contemporary English(1997),a sign is a piece of paper, metal, or wood with words or a picture that gives information,warnings,or instructions.In that sense, public sign is the general terms for indicators,signs,traffic signs, posters, slogans, warning, short notices,short instructions,stickers,and are becoming the catch word and the buzzword.All in all, public signs are so widely used and played important roles in our daily life.2.2 Functions of Public SignsPublic signs are essential to the normal operation of the society and their influence is also visible in almost every aspect of our daily life.Sometimes,we have to admit that our lives cannot do without the proper guidance that public signs provide to us.However, what usually happens is that we are prone to be bewildered by various public signs and the enormous information they convey to us.Therefore, it would be necessary to classify the public signs in terms of their functions as well as the status of information that they deliver.2.2.1 Directing functionDirecting is the most basic function of public signs, t his type of public signs is used to give readers related information about what the institution is,what it deals with and what kind of service it can provide.For example:Take Away(外卖),Gas Station(加油站),Emergency Exit(紧急出口),Business Hours(营业时间),Pause(暂停),Menu(菜单),Airport Security(机场安检).From the examples above we may tell that the language and the tone of these public signs are generally neutral,reflecting no attitude towards receptors.Therefore,public signs of this kind are purely informative rather than vocative.2.2.2 Prompting functionPromoting signs are similar to the directive ones in their informative function. While the difference is the former .carries the tone of warning,reminding the readers to pay some attention to certain things or activities.For example:Keep Clear(请保持清洁), Keep Silence(请保持安静),Wet Paint(油漆未干),Fully Booked(客满),Beware of Pickpockets(小心扒手),Maximum Height(限高).2.2.3 Restricting functionPublic Signs with restricting function impose restriction or even prohibition on receptors.The language used in this kind of signs are simple and direct but are not in rude,tough or impolite way.We can list some of them as following:Pay In Cash(现金支付),Slow Out(减速慢行),Keep Silence(保持安静),30 Minutes Parking(限停30分钟),Seat By Number(对号入座), Stand In Line(排队等候).2.2.4 Compelling functionCompelling function is the strongest considerable mood.It is used to prohibit the readers to do something or must do something.The language used is usually forceful,with no possibility of making a compromise.The sign with this function which we mostly often see is“No Smoking禁止吸烟”,that is to say that smoking iscompletely forbidden.Imperative sentence is not enough to express this strong mood,usually, we use“No+…”form,for example,“No Food禁止携带食物”.More examples:Don’t Touch(禁止触摸),No Cameras(禁止拍照),No Visitors(游客止步),No Trucks(卡车禁止通行),Dogs Not Allowed(禁止带狗入内).Translation of the public signs, translators not only need to grasp their function features since we use different mood to express different function,but also should keep their language features in mind during the translating.CHAPTER III Analysis on Problems in C-E Translation ofPublic Signs3.1 Linguistic translation problemsLinguistic translation errors are often due to deficiencies in the translator's source or target language competence (Nord 77).And in his book Pragmatics and English Language He Ziran explained that by making linguistic errors,the translators and interpreters fail to conform to the target language structures,instead they blindly translate the source text in their own language structures(157).Professor Wang Yinquan, classifies linguistic translation errors into: spelling mistakes, grammar mistakes and wrong diction (32).3.1.1 Spelling errorsSpelling errors are typical translation problems in bilingual public signs. The reasons for this type of errors attribute to the three factors: the incompetent language acquisition, the laziness of the translator when writing, the uncertainty of the correct spelling, among which the third type is most difficult to be identified. For example: 3.1.2 Grammatical errorsApart from spelling mistakes,many grammatical errors also occur in the translated signs.These errors appear in various forms,most of which result from the translator’s poor command of the English language or irresponsible working attitude.As a result,the translated public signs cannot be of any help to the target readers.Sometimes they may do damage the image of our city.For example: 室内停车场(Car Park)—It may be apparent to tell that the translator intends to use the word“park”as a noun to express the meaning of parking place for automobiles.However, as a noun the word actually means a public place wherepeople can entertain themselves with the landscape or public facilities in it.Therefore, it will be advisable to use the gerund form of the word “park”and translate it as“Indoor Parking”.3.1.3 Wrong dictionsWrong Dictions occur when t he translator doesn’t make right choices of words in the target culture that will lead to unsuccessful expression of the correct information to the target text receivers. In fact, many English words have more than one meaning. Sometimes one word used to describe the source culture may not be applicable in another situation and the diction is conditioned. The words chosen for each text might vary according to different semantic and syntactic features in different situations. For example:请勿采摘花朵--Please Don’t Pick Flowers. Here use“pick”to describe the gesture. In fact, there is a variety of expression in English corresponding with “摘”, of which one of the expressions is “pick”. But in the given circumstances, “pick”doesn’t equate with “摘”. “Pick”means to select among a variety of choices, but here the sender wants to persuade people not to pluck the flowers. The error is due to the confusion about the seemingly identical usage of one word.3.2 Cultural translation problemsAs we all know, people in different cultures may view the same thing in different ways and differ in the perspective of cognition.At the same time,they express the same idea in different way.As far as Chinese and English are concerned, culture differences are tremendous.Translation breaks down language barriers and thus realizes communication between cultures using different languages. In this sense, target readers approach to people of source culture whose beliefs, backgrounds, perception of the world are distinct from their own.For example:古装照相It is ancient to pack photo“古装照相”is a typical Chinese term. In English, people don’t have the correspondent term. According to the public signs translation convention, the signs which are composed of Chinese noun phrases are expected to have the same structure in English version, so the sentence is not correct in terms of the sentence structure. Also concerning the meaning of the sentence, it is wrongly translated that the foreigners can’t get the message which leads to the pragmatic failure of the assumed function. The correct version should be “Photos in ancient costume”.CHAPTER IV Strategies for C-E Public Signs Translation4.1 Principles of C-E translation of Public SignsAs we know, different functions need different language forms to convey and each language style possesses its special principles.Ni Chuanbin and Liu Zhi analyze the language principles of public signs in their essay“The Principles for C-E Translation of Public Signs and its Cases Study”,published in Shanghai Journal of Translators for Science and Technology(18).Firstly, the signs are on a board,so the language on the signs should be in concise way due to the comparatively small space.Secondly, some public signs must draw the public’s attention at the first sight and the readers can catch its meaning very quickly and correctly, especially the traffic signs,such as“Abrupt Turn Left Ahead前方急转弯”,the applied words should be simple ones instead of rare ones.At last,the meaning of the signs should be clear and easy to read,the sign is set without ambiguity. So we can know the principles in details as following:4.1.1 ClearnessDue to the short time the target reader can spend on reading the signs the meaning of the signs should be clear and easy to be understood.As the target readers are the common people who have little knowledge related to the concerned topic,the signs should directly hit the point and there should exist no vagueness.“严禁客货混装Don’t put passengers and cargos together”. It is hazy and not clearness. So the sign“严禁客货混装”should be translated into“No passengers on Trucks”.The signs are set for the public and not every reader is professional,therefore when we translate signs,we should hit the point directly and clearly and should notjust talk around the bush.4.1.2 ConcisenessAccording to William Strunk,Jr.and E.B.White in 1979(Joan Pinkham):“Vigorous writing is concise.A sentence should contain no unnecessary words,a paragraph no unnecessary sentences,for the same reason that a drawing should have no unnecessary lines and a machine no unnecessary parts.”It is also true of language of public signs.Usually, the readers for public signs just give a quick look at the board with signs on when they pass by.So the language on it need not be in a complete sentence,a phrase or just a word is enough,for example,“No Smoking禁止吸烟”,“Open正在营业”,we need not use sentences“Please do not smoke”an“We are on business”.4.1.3 Simple wordsPublic Signs are set for the public,target readers of this kind of materials are ordinary people,not only the native English speakers,but also other foreigners who know a little English and English is not his mother language,and target readers also include overseas Chinese who is not a English native speaker.If the English version is full of rare words and expression,it will cause a pragmatic failure of communication for public signs.There is always a small restaurant at the airport to provide fast food for the passengers,the English tablet should be“Snacks”instead of“Refection”,the later one is not often be used nowadays and we cannot find it in the dictionaries published in recent years.Take all another example,“景区环境卫生,需要您的维护”,should we translate it into“Environmental Sanitation of the Scenic Spot Needs Your Conserve”? The words“sanitation”and“environmental”are not familial words for the public,we had better use“Keep Clear”or“No Littering”.From the above,in order to make target readers catch the meaning at first glance,we should use the concise,clear, simple words and expressions in C-E translation of public signs.4.2 Strategies of C-E translation of Public Signs4.2.1 ModificationGenerally speaking, it is always the case that the reader in the culture of the target language may not share the cultural background of the source language.Therefore,when dealing with culture-loaded words and idioms,the translator sometimes has to make cultural modification so as to generate the same feedback from the target text reader with that of the source text reader, and as for the translation of public signs, it is no exception.For examples:西湖的虎跑泉—Tiger Running Spring, in this public sign,the translator obviously take the actual meaning of the sign for granted by translating the word“虎跑”as“tiger running”which means that a tiger runs for the spring.4.2.2 AdditionSome public signs,especially signs at scenic spots,tend to include dynasties,legends or other cultural elements,while most foreign visitors lack the background knowledge of China.If the public signs are translated literally, the English versions may confuse the target readers.Thus we should adopt the translation strategy of addition to supply necessary information on the basis of accurate comprehension of the original public signs.For example:谢绝游客入内Closed To Visitors禁止在墙上涂写No Scribbling On The Wall4.2.3 OmissionDue to different aesthetic standards and cultures,Chinese writing tends to include flowery words,four-word phrases or some culture elements which are special to the Chinese culture.However, English writing pursues clear and simple expressions.In How to Help Foreigners Know China,Duan Liancheng holds a view that with the development of tourism in recent years,large numbers of brochures pamphlets and pictorials have been published for foreign tourists.A common weakness of these materials is full of flowery words and cultural elements of China which may confuse the target readers (Duan 286). So the translator should omit some adjectives or cultural elements which may pose barriers to the target readers.Then the English version will be easily understood by them.For example:1.Source Text:慢速行驶Version A:You must drive slowly.Version B:Drive slowly2.Source Text:前方学校Version A:There is a school ahead.Version B:School Ahead4.2.4 Mutual transformation of affirmative and negative expressionsMutual transformation of affirmative and negative expressions is a common strategy in translating the text of one language to the other.It is especially useful for transcending the translational difficulties due to different ways or habits of expressing ideas in Chinese and English.In translating public signs,mutual transformation of affirmative and negativeexpressions is necessary as well.In western countries especially in English—speaking countries,people tend to avoid using negative expressions in public literatures as much as possible in case that unpleasant emotion or feeling would be aroused on the part of the receptor.However, because of the difference in cultural values,negative expressions are more frequently used in Chinese public signs.Therefore,according to the theory of cultural translation, we should adopt the translational method of“Domestication”.For example: “社会车辆禁止入内”,it is a kind of negative expression in Chinese language. While it should be translated into “Staff Only” in English, it is affirmative.4.3 Requirement for the translatorsThe C-E translation of public signs is by no means an easy job and it requires that a translator be serious and accountable in attitude, and proficient in both the source and the target languages at the same time.A good translator should always bear in mind the features and characteristics of public signs.Only if the translators acquire the expertise in the source and target languages as well as the source and target cultures can they produce qualified versions. In addition, as for the making process of signs, the local governments should choose reliable and efficient sign-making units by means of bidding to undertake the job.And the translation should be tested in the foreigners to ensure the acceptability.Then a supervision organization in charge of public signs should be established to make sure that some common English versions are accurate and unified.CHAPTER V ConclusionBased on the previous discussions and analyses, the major findings of this study can be summarized as follow:Firstly, the linguistic translation problems account for the reasons for spelling, grammatical and wrong dictions problems. Translators should improve their language acquisition in dealing with the problems.Secondly, as to cultural problems, the translators are advised to adopt communicative translation. To be more specific, the translation strategies are adaptation, restructuring, semi-literal translation, etc.Thirdly, the C-E translation involves the principles and the methods. The principles include three points of clearness, conciseness and simple words. The translation takes place in a given situation or in another sense, the methods of C-E translation of public signs should be divided into four: modification, addition, omission and mutual transformation of affirmative and negative expressions.Actually, the problems of the translation of public signs are far more complicated than the thesis.The problems that have been discussed and proposed with strategies to are just a tiny tip of the whole iceberg.With the development of the society, it is sure that more and more public signs will come out by taking various forms,and new problems in translating them will turn up.Therefore,the classification of public signs and mistranslation, as well as the strategies for the betterment of the current status of sign translation, although the author attempts to let them be, are not all-inclusive and universally accurate. It is a long and hard way for us to go.AcknowledgementsI would like to express my heartfelt thanks to those who offered me their sincere support and encouragement in the process of my thesis writing.First of all, I’d like to give my sincere thanks to my teacher, Kangbing. She has given me valuable instructions on my study. Whenever I need her help, she always enthusiastically offers me. During the process of the completion of the thesis, from the researches chosen to be analyzed to the final composition, her patient and helpful instructions have benefited me a great deal. Her strict requirements have enabled me to learn how to do research work, and her kind encouragement have been supporting me to the end.Second, my true thanks also go to all the teachers who guide me in the field of business English.Finally, my family and friends give me great encouragement and support during the composition of the thesis. I’d like to send them my heartfelt thanks too.Work CitedBaker, Mona. Encyclopedia of Translation Studies[M]. Shanghai: Shanghai Foreign Language Education Press, 2004:104.Nida, Eugene A.&C. R. Taber. The Theory and Practice of Translation[M]. Leiden:E.J. Brill, 1969:89-97.Nord, Christiane. Translating as a Purposeful Activity[M]. Shanghai: Shanghai Foreign Language Education Press, 2001:77.Pinkham John.The Translator’s Guide to Chinglish[M].Beijing:Foreign Language Teaching and Research Press, 2000:99.Snell-Hornby, Marry. Translation Studies: an Integrated Approach[M]. Shanghai: Shanghai Foreign Language Education Press, 2001:267-271.Wilss,Wolfman.The Science of Translation-Problems and Methods[M].Shanghai:Shanghai Foreign Language Education Press, 2001:125.包惠南.文化语境与语言翻译[M]. 北京:中国对外翻译出版公司, 2002:78-86. 陈定安.英汉比较与翻译[M]. 北京:中国对外翻译出版公司, 1988:271-275. 陈淑莹.标示语英译的语用失误探析[J]. 四川外语学院学报, 2006 ,1:117-120.戴宗显, 吕和发. 公示语汉英翻译研究---以2012年奥运会主办城市伦敦为例[J]. 中国翻译, 2005,6:38-42.何自然.语用学概论[M].长沙:湖南教育出版社,1988:157.赖少华.浅谈公示语的翻译现状及对策----以广州地铁站公示语翻译为例[J].湖北广播电视大学学报, 2009,6:112-112.吕和发, 单丽平.汉英公示语词典[M]. 北京: 商务印书馆, 2004:38..倪传斌,刘治.标记语的英译原则及实例分析[J].上海科技翻译, 1998,2:18-20.单爱民.谈英语公示用语的语言特点与汉英翻译[J]. 北京第二外国语学院学报, 2002,5:76-79.王晓娟. 从功能理论看公示语翻译---以南京城市公示语为例[J]. 湖北经济学院学报:人文社会科学版, 2008,4:119-120.。
论文标题汉译英翻译三原则
课程教育研究 外语外文 ·20· follow her footstep and being deserted by her husband, we can conclude that Amanda’s miserable sufferings and tragic fate is doomed as long as she lives in the patriarchal society. And to make things even more pathetically, women in this play, including Laura, they didn’t realize the bondage and limitation the patriarchal society imposed on them. Williams’ reveal of the tragic fate of Amanda attract our attention to study feminism and advocate to build a equal society. Reference: [1]Beauvoir,Simone de. The Second Sex. Trans. Constance Borde and Sheila Malovany-Chevallier.Random House: Alfred A. Knopf,1949. [2]Bloom, Harold. Tennessee Williams. New York: Chelsea House Publishers,1987. [3]Showalter, Elaine.1995. The New Feminist Criticism[M]. New York: Pantheon Books. [4]Williams, Tennessee.1987. The Glass Menagerie[M]. New York: Penguin Group. [5]柏 棣.2007.西方女性主义文学理论[M].桂林:广西师范大学出版社。
汉译英 习语翻译
Features of Idioms
5、习语常利用声音的和谐来达到易懂易记、顺口入耳、生动有力的目的。 习语常利用声音的和谐来达到易懂易记、顺口入耳、生动有力的目的。 利用韵脚:狗咬吕洞宾,不识好人心;一招鲜,吃遍天;良药苦口利于病,忠言逆 利用韵脚 耳利于行; A friend in need is a friend indeed. East or west, home is best. Man proposes, God disposes. Health is better than wealth. Beggars should not be choosers. fair and square; high and dry; wear and tear. 利用双声: 利用双声:八面玲珑,聪明伶俐,慷慨激昂,明媚灿烂 Alliteration: as blind as a bat, as busy as a bee, as clear as crystal, as dead as a doornail, as cool as a cucumber, as red as a rose, as proud as a peacock, at sixes and sevens, spick and span, then and there through thick and thin tit for tat neither fish, flesh or fowl Care killed the cat. Money makes the mare to go. Many men, many minds. Speech is silver (silvern), silence is golden.
一年之计在于春 一箭双雕 趁热打铁 一个巴掌拍不响
英汉翻译
我诚邀阁下莅临我们的思科客户访问中心,一同探讨如何有效地应用技术,共同打造一个辉煌的明天
Distance from the event should make the memories less painful.
事件的久远自然会减少回忆的痛苦。
时过境迁,痛苦的往事自然在记忆中淡漠。
It was an elderly woman, tall and shapely still, though withered by time, on whom his eyes fell when he stopped and turned.
他站住,转过身来,定睛一看,是个年迈妇女,个子很高,依然一副好身材,虽然受岁月折磨而显得憔悴。
I would like to personally invite you to join us at the Executive Briefing Center for a collaborative discussion of how technology can position your company for future success.
维生素感光只是后来承认的。
人们只是到后来才认识到维生素的光敏作用。
The longest life and the shortest amount to the same. For the present is of equal duration for all, and what we lose is not ours.
2016年青大研究生综合英语四篇文章汉译英翻译整理
2016年青大研究生综合英语四篇文章汉译英翻译整理Unit1 TRAITS OF THE KEY PLAYERSDavid G. Jensen核心员工的特征We hold them up to the standards we see in our toppeople. If itlooks like they have these same traits, we'll place a bet on them."“我们把他们和公司顶级员工表现出的特质进行对照。
假如他们看起来有同样特征的话,我们就在他们身上赌一把。
”The business environment is less lone-wolf and competitive, so signs of being collaborative and selfless stand out.企业的环境并不需要单打独斗,争强好胜,所以表现出合作和无私精神的员工就脱颖而出了。
5 Many peptides and grad students have a tough time showing that they can make this transition because so much of their life has involved playing the independent- researcher role and outshining other young stars.许多博士后和研究生在进行这种过渡的过程中表现得相当费力。
因为生命中有那么长一段时间他们都在扮演一个独立研究者的角色,并且要表现得比其他年轻的优秀人才更出色。
Better still, develop a reputation inside your lab and with people your lab collaborates with as a person who fosters and initiates collaborations—and make sure this quality gets mentioned by those who will take those reference phone calls.更为有利的是,要在你实验室内部,以及在和你们实验室合作的人们之间,培养一个良好声誉:一个鼓励并发动合作的人——还要保证让那些会接听调查电话的人们谈及你的这个品质。
英译汉和汉译英翻译实践报告
目录目录 (i)第一部分英译汉 A Red Sweater翻译实践报告 (1)第二部分英译汉参考文献 (5)第三部分汉译英《华威先生》翻译实践报告 (6)第四部分汉译英参考文献 (9)附录 (10)1、英译汉原文A Red Sweater (10)2、英译汉译文《红毛衣》 (17)3、汉译英原文《华威先生》 (24)4、汉译英译文Mr Hua Wei (29)A Red Sweater翻译实践报告A Report on Translation of A Red Sweater摘要: 在华裔美国文学中,小说家伍慧明的这部《红毛衣》深受众多读者的喜爱,作者通过描写一个家庭中两代人不同的经历,展示了在美国社会中,华人是如何努力争取实现自己的梦想。
作者以独特的角度观察和描写两代人的相同与不同之处,展现美籍华人的心路历程。
该报告基于笔者A Red Sweater的翻译实践,旨在通过提出自己在翻译中遇到的困难及该注意的方面,对其翻译中的问题的处理进行了描述,最后得出一些译文的反思与总结,对原文有了更好的理解的同时进一步地提升自己的译文。
关键词:年轻的一代;年老的一代;美籍华人;美国文化Abstract:In Chinese American literature, A Red Sweater written by the novelist Wu Huimin is popular with readers. The translator shows how Chinese strive to realize their dreams in American society by describing the different experiences of two generations in a family. The translator observes and describes the similarities and differences between the two generations from a unique perspective, and shows the psychological course of Chinese Americans. Based on this translation practice, the report aims to describe the solutions in her translation by proposing the difficulties and she encountered and the aspects she should pay attention to. At last, the translator draws some reflections and summaries of her translation, so as to has a better understanding of the original text and further improve his own translation.Key words: The younger generation, the older generation, Chinese Americans, American culture,1.任务的描述本次翻译的实践内容是一篇英译中的短片小说A Red Sweater《红毛衣》,1一共3860个字符。
英译汉篇章翻译3
英译汉篇章翻译练习(3)I took home a briefcase full of troubles. As I sat down on that hot and humid evening, there seemed to be no solutions to the problems thrashing around in my brain. So I picked up a book, settled into a comfortable chair and applied my own special therapy—supper-slow reading.I spent three or four hours on two short chapters of Personal History by Vincent Sheena—savoring each paragraph, lingering over a sentence, a phrase, or even a single word, building a detailed mental picture of the scene. No longer was I in Sydney, Australia, on a sticky heart-wave night. Relishing every word, I joined foreign correspondent Sheena on a mission to China and another to Russia. I lost myself in the author’s world. And when finally I put in down, my mind was totally refreshed.Next morning, four words from the book—“take the long view”—were still in my mind. At my desk, I had a long-view look at my problems. Once more, super-slow reading had given me not only pleasure but perspective, and helped me in my everyday affairs.I discovered its worth years ago….Previously, if I had been really interested in a book, I would race from page to page, eager to know what came next. Now, I decided, I had to become a miser with words and stretch every sentence like a poor man spending his last dollar.I has stared with the practical object of making my book last. But by the end of the second week I began to realize how much I was getting from super-slow-reading itself. Sometimes just a particular phrase caught my attention, sometimes a sentence. I would read it slowly, analyze it, read it again—perhaps changing down into an even lower gear—and then sit for 20 minutes thinking about it before moving on. I was like a pianist studying a piece of music, phrase by phrase, rehearsing it, trying to discover and recreate exactly what the composer was trying to convey.。
关于英语翻译方向的论文范文
关于英语翻译方向的论文范文翻译在跨文化、跨民族之间的交流和合作中功不可没,英语翻译,它既是语言之间的相互转换,同时也是不同文化间的交流。
下文是店铺为大家整理的英语翻译的论文的范文,欢迎大家阅读参考!英语翻译的论文篇1文化空缺与英汉翻译摘要:不同民族的语言产生于不同的文化背景,所承载的文化也不尽相同,这就必然导致两种语言在表达方式上存在很多相异之处,文化空缺就是这些差异的极端表现,它是一个民族语言和文化与其它民族语言和文化的异质性的充分体现,这无疑增加了翻译的难度。
所以文化空缺的翻译不仅是语言的迁移,更是文化的传播。
关键词:文化空缺英汉翻译翻译作为人类最早进行的交流活动之一,一直在不同的语言集团间沟通信息,对人类社会的发展和进步有非常重要的作用。
正是由于翻译所起的中介作用,民族间才可以互通有无、互相学习、共同发展。
跨文化交际学和文化语言学的兴起与发展,为语言与文化的研究带来了勃勃生机。
而作为跨文化交际的翻译,也因此而更加受到重视,对它的研究也呈现出多角度、多侧面、开放性的特点。
翻译作为不同语言之间人们交流思想和文化不可或缺的手段,在传播文化信息、促进不同民族间的相互了解与民族融合的过程中的重要作用已日益凸显。
翻译界对翻译理论研究的重心从译意到译信息再到以文化为导向的翻译,正说明翻译实质是文化的翻译。
如Bassnet & Lefevele就指出翻译的研究实际上就是文化互动的研究,Nida亦强调译者的双文化能力。
而在交流与翻译活动过程中,各民族由于语言文化异质性的客观存在,会不可避免地出现信息交流的障碍。
其中作为语言文化异质性极致体现形式的文化空缺现象更使交流者进入了两难的境地。
为积极应对空缺现象带来的问题,促使交流与翻译的顺利进行,就必须在交流与翻译过程中逐步探寻处理文化空缺的有效途径和办法。
翻译,在古时候叫做“象寄”或“通事”。
《说文解字》里说:“传译四夷之言者。
”《义疏》里也提到:“译即易,谓换易言语使相解也。
英汉翻译(一)--翻译概论
翻译的形式
It is sometimes said that there is no task more complex than translation—a claim that can be readily believed when all the variables involved are taken into account. Translators not only need to know their source language well; they must also have a thorough understanding of the field of knowledge covered by the source text, and of any social, cultural, or emotional connotations that need to be specified in the target language if the intended effect is to be conveyed. The same special awareness needs to be present for the target language, so that points of special phrasing , local (e.g. regional) expectations, and so on, can all be taken into account.
Etymologically, “translate” is derived from the Latin word translatus, “ carried over.” Translatus is the past participle of transferre. If divided into trans and ferre, we can see the proximity of the word to dia and peherein. The Latin term ferre means “to carry” or “ to transport” as in carrying a shield, and was often used to mean to bear or convey with the notion of motion (Homer), as in ships borne by the forces of wind. If also meant to endure, to suffer, as in to bear a mental burden… (Gentzler, 2001:166)
《英译汉教程》参考译文
第二部分练习参考译文Chapter 1 General PrinciplesDrills 1.3.1(1) 1. 这对克服困难很有帮助。
(go a long way towards something/doing something = helpgreatly in [achieving] something, OALD 2002: 525;《新英汉词典》2000: 1577)2. 趁你还年轻的时候,加油吧!/青春不再,趁早努力。
(go it = act in a manner that is quicker,more lively, impatient, etc., than is usual. Longman Dictionary of English Idioms1979: 130;《英汉大词典》1993: 740)3. 我需要更多空闲的时间。
(could do with something = need or want something, LDCE1998: 435)4. 这次失败促使他成功。
([the making of] = a means of gaining great improvement orsuccess, LDCE 1998: 918)5. 我盼望在最后一刻可以挽救和平。
(the eleventh hour = the very last moment, LDCE 1998:478)6.她对此事很了解。
(know a thing or two [about somebody/something] = know a lot [aboutsomebody/something], OALD 2002: 825)7. 她真是爱说话。
/她太喜欢说话了。
(ready = willing to do, LDCE 1998: 1249, 参见“学生用书”243页)8.无线电传来了该地区发现大油田的消息。
英译汉短文翻译10篇
1. Lexicography1)Lexicography provides at its best a joyful sense of busyness with language词典编纂的绝妙之处是给人一种与语言打交道的快乐感。
2) One is immersed in the details of language as in no other field.不像其他领域,编词典的人整天都钻在语言材料中。
3) Sometimes the details are so overwhelming and endless they sap the spirit and depress the mind有时碰到的语言材料浩如烟海,令人耗神。
4) Often at the end of a hard day’s work one realizes with dismay that the meager stack of finished work one has accomplished has an immeasurably slight impact on the work as a whole往往一天辛苦工作下来,发觉所完成的薄薄几页草稿只是全部工作的九牛一毛,好不沮丧。
5) As I hope the readers of this work will come to understand dictionaries do not sprint into being正如我希望这部著作的读者会逐渐明白的那样,词典并非是一蹴而就的。
6)People must plan them collect information and write them. 必须先制定计划,收集材料,然后方能编写。
7 )Writing takes time and it is often frustrating and even infuriating.编写词典不仅耗费时间,而且常让人受挫,甚至恼怒。
中英文学类翻译
译文将“smile”与“spurn”做了交换处理,使得每句 诗的末尾字形成押韵,且保留了原文的诗意。
再看一首小诗
To see a word in a grain of sand And a heaven in a wild flower
Hold infinity in the palm of your hand And eternity in an hour ------by William Blake
例子:三月里刘熏宇君来信, 说互生病了, 而且是没有希望的病, 医生说只好等日子了 。
(朱自清《哀互生》
“ 等日子” 是汉语里一个很委婉的表达方 式,表示将不久于人世。将其译成
“wait for the day to arrive”
虽说是照字面直译却很委婉地表达了“不久 于人世” 的意思
又是例子:又说咱们中国道家讲阴阳, 这开
一般译法:最缺少自信的人是最 喜欢妒忌别人的人;同样,最软 弱胆小的人是最具报复心的人。
仿《论语》
自疑者必好妒人,自怯者 必好犯人。
又例
Words, like clothes, get oldfashioned, or mean and ridiculous, when they have been for some time laid aside.
• 精译:她美丽依旧,若非风华正茂,也未 到迟暮之年。
仿文言文译法。
----非文学功 底超高者不能为也
例、Those who are the most distrustful of themselves , are the most envious of others ; as the most weak and cowardly are the most revengeful
商务英语毕业论文题目-英汉对照
Research on English-Chinese Translation of Attributive Clause in Business English
在商务英语阅读中生词的学习策略研究
Study on Strategies of Learning the New Words in Business EnglishReading
商业广告语篇中模糊限制语的人际功能研究
Interpersonal Function of Hedges in Commercial Advertising Discourse
商务英语索赔信函的人际意义研究
A Study of Interpersonal Meaning in Business
English Letters of Claims
商务英语写作中介语的错误分析
A Study of the Interlanguage Error Analysis in Business English Writing
从转化生成语法的角度研究商务合同中的歧义现象及其消除策略
A Study on the Ambiguity in Business Contract from the Perspective of Transformation—generative Grammar and Disambiguation Strategies
被动结构在英文商务信函中的应用及其汉译策略研究
Research on the Application of Passive Construction in English Business Correspondence and Its Translation Strategies
英文学术论文翻译-中英文对照(三)
•These new measures will, we believe, increase the people’s purchasing power and lead to thriving financial and commercial conditions rather than make a mess of the country’s finances as some people argue.
一、主谓单句
汉语的主谓单句,从外形结构 上来看,跟英语的“主谓”结构是 相似的,但它的主语和谓语表达却 与英语有许多不同的地方。所以翻 译汉语主谓单句时,至少应注意几 个问题。
1、防止主语的机械对应。 中国近几年来发生了巨变。 ①There have been great changes in China these years. ②These years have seen (witnessed) great changes in China. ③Great changes have taken place in China these years. ④China crackles with the dynamics of changes these years.
汉语的基本句型及其翻译
汉语造句以名词为重心,以词组、散句和 分句为手段,善于按时间、逻辑顺序进行横 排式叙述,有时断句不严,外形松散。有人 称汉语是时间型的动态结构,主要体现于形 式自由,富于弹性。
英语则以“主—谓”主干结构为重心来统 领各种语言成分,句界分明,外形严密。 因此,汉语各种句型译成英语时,不仅在 逻辑关系上而且在外形上都应该体现出英语 句法结构的特点。
2-3 Reversing • 1)沿路都是小商店。 Small shops dot the way. • 2)他这样悍然行事使我们非常气恼。 Hot anger burned in our minds against him at his rashness.
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英译汉论文翻译专业班级:机制0804姓名:孟祥宇学号:03指导老师:郭宝良粘滑振动的振动模式Jaeyoung Kang, Charles M.Krousgrill, FarshidSadeghiA:美国普渡大学西拉法叶校区,机械工程学院,普渡大学585购物中心,编号47907 – 2088B:机械和汽车工程,大学工程,国立公州大学,Cheonan-Si 韩国文章信息历史条:2008年8月10收到文件。
2009年5月1日收到修订后的形式。
2009年5月14日文件被公认。
关键词:粘滑摩擦耦合量子谐振子耦合模式振荡模式文摘本文通过摩擦的非线性的平滑的曲线研究了粘滑振荡离散系统的能量来源。
通过数值的时间,整合和分析的方法研究了粘滑的一个单自由度的模型的极限环振荡。
相同的方法也可应用到模型的摩擦振荡器耦合中。
特别是,我们不难发现的稳态响应的耦合。
根据两种模式的频率间隔,振荡器可分为两种不同形式的(合并振荡模式和分离振荡模式)振荡。
稳态响应的振荡模式取决于系统参数,如谐因素,能源的速度,正常的接触载荷。
1、介绍摩擦产生的振动将对各种应用系统产生严重的问题,如从事摩擦的刹车、离合器、机床等。
由于摩擦而经常进行自我维持的不稳定的振动。
这样的自激振荡在文献[1]中进行了广泛的研究 ,在那里的研究中使用了摩擦所致的振动的离散模型。
一个弹簧-块单自由度模型解释了粘滑振荡[2-5]的行为。
在该模型中,不稳定摩擦振动导致了极限环的形成。
[2]采用了指数和多项式函数,并使用摩擦速度曲线研究了导致极限环振荡的条件。
类似的,粘滑振荡所提供的不连续摩擦模型控制方程,在设定静态和动态两个不同的摩擦机理[3]、[4]中,使用了不同的摩擦模型如平滑和交换的方法。
平稳的摩擦曲线平滑方法取代连续系统,并允许一个解决一个单一的光滑微分方程。
相比之下,交换方法评估了不同组方程的防滑和过渡模式。
考虑到定性方式,Denny [5],使用了一个光滑摩擦曲线的平滑法很好地使系统行为从不连续阶段过渡到连续的滑动阶段。
然而,单自由度只有在摩擦所致的适当振荡中不与其耦合。
为了更好地描述摩擦耦合振荡的两种方式(或两个块),我们对这两个自由度的弹簧-块作了介绍。
例如,可能有两个块在一维空间移动,这被称为火车模型[6、7]。
这种模式一直被视为自我持续的混乱振动。
另外一个模型可能会有一个块在两维空间[8,9]中振荡。
该模型在两种摩擦耦合模式之间产生,这导致了不稳定模式的耦合[8 - 10条,第13条]。
模型中有一个无限的自由度的颤动系统可以使用Galerkin研究的近似原方程的方法来研究。
这种连续系统可以进一步简化为降阶模型使系统响应由颤动的模式为主。
例如,Kang 等,通过[9,10]采用模态扩展了一对盘式制动器的余弦和正弦模式。
他们的分析表明:两个自由度模型可以采用正交使弹簧和移动表面等效为线性降阶盘式制动器。
此外,耦合模式的作用通过非线性的圆盘模式显示,以确定波型(一个漫游或者驻波)在圆盘表面的平面振动[11]。
然而,相应的频率模式尚未解决。
在本文中我们关注的焦点是在动态模式中某些弹簧-块的稳态振动,采用平滑方法描述粘滞滑动的行为。
图1 弹簧块模型的描述:(a)单一程度的自由模式及(b)耦合振荡器[9]。
极限环的分歧数量存在的必要条件[12],m⋅必须有符号的变n/F化。
因此,摩擦的稳定性至关重要的是曲线的斜率和形成稳定的滑动平衡的极限环。
极限环振荡数值的估计如图3a。
由于滑动速度()τu-接近零,摩V擦力符号从负斜率转换成正斜率并限制循环形成(图。
3 b)。
同时,正斜率的()τu 在微量()τu-附近保持平衡,这里形成一个近似粘滞的阶V段(图3 c)。
它应该注意的是运动的形成取决于极限环在控制参数曲线[5]和Denny的摩擦式(6),相图的粘滑振荡由不同的控制参数的摩擦曲线证明。
振荡期间和收敛区间用数值模拟的方法计算了周期。
图4表明该粘滞相位测量时间的连续摩擦的历史阶段。
图5显示周期振荡和坚持的时间间隔在一段时期内成正比的正常负荷()K=,但是它们的n/N速度V会在移动表面降低或增加。
无量纲的时间)(0τττ≥ 就是分化点的地方,在这里有),/(1c c c k k k k += (17) ),/(111c K K N n += (18)图5。
粘滑振荡:(a )振荡周期和参数的影响(b )一段时期内的粘滞相位;).(3),(2),(1),/(00-O -=-∆-=-==V V V K n n)/()(112c c K K K K -+-=σ 失谐因素, (19)x x uV f μ∙-=)sgn( :在x 方向的无量纲摩擦力 (20) y y u V f μ∙-=)sgn( :在y 方向的无量纲摩擦力 (21)图6 特征值与F *轨迹:)(;2.0,5.0,31-===v c k n λσ和λ因为).(1),(2),(3-X -=-O -=-∆-=V V V最初的平衡状态合并为两个模态的响应频率的时间是不断变化的。
在这里,可能会出现问题:如果平衡状态摩擦的频率振荡是分开的,他们是仍然分离在极限环上(如果可能)?还是平衡展出在分开的两种模式稳态响应的合并行为?答案需要从时间域非线性方程(15)和(16)从时间方面整合解决。
解决方案,图 7表明,有两种稳定的滑动振荡模式:合并模式和分隔模式的振荡。
它意味着模式合并后的振动的过渡取决的两种振动模式,可能会出现系统参数。
在图7A 显示常数振幅和两种模式的阶段,图 7B 显示分隔模式振动经历的变化幅度和时间。
在下一节中,极限环振动的耦合模式提供分歧的分析方法。
3.2、耦合模式极限振动的周期分析耦合式振荡器公式(15)和(16),不是一个单自由度振荡,可能会失去与振荡的联系。
如果接触表面上的正常负荷变为零,块会失去它的任何接触力。
这不是当前论文讨论的范围。
相反,非零接触条件的耦合振荡器在接触载荷为0ττ≥的简单形式为被执行为:0))((*>≡++h c n u u k τ, (43) 0))((*>≡+-v c n v v k τ, (44) 在非零的接触条件下,必要的条件存在可以得到了耦合量子谐振子的极限环。
公式(15)和(16)在状态空间重写成这样的形式为了明确形成极限环振荡两个自由度的耦合振子,与摩擦经过对应的模态相图由合并模式( = 0.2)所示。
它表明,摩擦力斜率的变化标志着存在极限环振荡。
图8a和b。
此外,图8C说明在两个模态之间的相位差的接触力是不变的。
这是合并模式后的极限环的特点。
正如在第3.1节和图7所提到的,线性和非线性的合并模式的振荡可能是无效的,如果模态分离强制受到了一定的系统参数的变化。
图9 粘滞滑动在:5.0,3,11===c k n V ,8.0=σ的模式振荡响应:(一)在u 模式下的相平面及(b )模态摩擦和正常负载轨迹。
图9描绘的是模式合并后的极限环振荡,图8当失谐因素由0.2增加至0.8时转换成非周期的分隔模式振动的响应。
在分离模式振动下,正常接触的负载进行幅度和相位的变化。
同时,摩擦力在粘滞阶段上出现一个周期时时间历史会有剧变,但是剧变在其他周期消失。
在这里,应该有临界值以确定控制参数的非线形的振荡模式(合并模式的极限环和分离模式振动)。
参数的边界值在非线性制度下不一定对应于那些抗滑稳定的平衡状态。
集成的解决方案需要确定两个非线性振荡模式的分歧与控制参数的数值。
图10。
合并模式极限周期和分离模式振动稳态响应之间的分歧:(a )时间演变期间的周期T 及(b )两种振动模式与系统参数的边界,(),6),(311-∆-=-O -=n n )(9-∆-=n ,一个无阻尼运动振荡器的线性即将移动(-⨯-)。
3.3 、合并模式极限周期和分离模式振荡的分歧对于无阻尼非线性(α= 0)即将发生的稳定滑动的平衡状态,耦合振动的方程(15)和(16)可分为两种制度,如合并模式和分离模式制度方面的参数控制。
例如,合并模式图 6A 中的点(**cr f f =)是两种制度之间的分歧。
随着时间演变之后的线性即将移动,然而,频率分离模式的非线性耦合振荡可能会改变。
为了确定合并模式极限环的周期和分离模式振动之间的分歧,在这期间分开两种模式对其稳态振动进行跟踪。
由于模态的周期可能是时间变化的,它们在时间方面是数值计算的,是通过测量一个高峰和相邻时间间隔之间的稳态模态响应峰值。
图10 a 说明稳态模式振荡期间分离的模式被分为合并模式和分离模式(部分分离或完全分离)。
合并模式的极限环和分开模式振动之间的分岔点取决于表面的移动速度V ,失谐因素,和长期的正常负荷)(111c K K N n +=如图 10b 。
通过数值试验得出以下结论。
合并模式的极限环的状态可以通过减少σ和V ,和通过增加1n 进行保持。
它强调线性即将发生运动的频率模式是不相同的稳态振荡如图10b 所示。
图11 为单自由度自由振荡器的功率谱分析:(一)( - - ):FFT 随着时间的推移[0,100],( - ):超过图的极限环振荡的FFT 在图 3a 和(二)光谱图上的极限环振荡。
4 、功率谱分析在本节中,进行频谱分析研究正常负载在接触面上的移动产生的效果所形成合并模式的极限环。
对于从事摩擦的非线性系统,通过对时域信号的FFT (快速傅立叶变换)得到系统的稳态的响应频率。
图11A 说明在瞬态和稳态的单自由度振荡器下的振荡光谱制度。
谐波振荡瞬时转移到周期性粘滞滑动振荡的制度。
据观察,基本上的周期振荡的极限环的频率从谐波固有频率瞬态制度下下降。
这由于极限环振荡的停滞阶段的时间如图 4。
时间松弛的程度依赖于正常负荷0n ,可以用光谱图在0n 方面[15](图11b )清楚的说明。
在单自由振荡器中每一个谐波频谱周期振荡随0n 而增加。
用类似的方式,进行稳态耦合振荡的频谱分析。
合并模式振荡在两个周期之间的相同的谐波的模态响应在图 12a 中可以看出。
然而,由于失谐因素增加,在稳态振荡的两种模式之间的频率可以分开。
两种模式的基本频率的分离产生时间变化与振幅周期性的缓慢的变化,这是稳态随时间变化而跳动的现象(图12b )。
峰值幅度通过跳动频率而重复,b b τπω/2=,其中ωπτ∆=/2b 。
因此,由于基本频率的分离渐近变为零,则跳动期b τ最终趋于无穷并且稳态振荡变成周期性的。
图13a 表明缓和时间内的粘滞滑动的极限环振荡的耦合振子的正常负荷。
通过降低合并模式的趋势,极限环振荡可能会被转换成分隔模式振荡的。
图13 b和图14展示,两者之间的分歧振荡模式存在控制参数(n和V)的变化。
1图12。
耦合振荡器的功率谱分析,u-模式(-),V-模式(--):V =1,1n= 3,c k= 0.5:(a)合并的模式粘滞滑动极限环振荡,σ= 0.2(b)分隔模式稳态振荡,σ= 0.8。