整车总布置设计流程(Whole vehicle layout design flow)

整车总布置设计流程（Whole vehicle layout design flow）In this paper, the contribution of Yu Cheng Cheng RiverDOC documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view.Whole vehicle layout design flowThree dimensional network technology forum $a 9 H (V, P0 J J2 o; U "B 9 Z"Www.3dpo rtal.c n/ [[I-, G, I7, X]We often adopt different methods when we design a whole layout of a new car and a design of a partial modification of a whole vehicle. Below we discuss the new car overall design layout method. First of all, the overall layout of the design staff to determine the design concept, that is, a clear design task book. In the overall design process, it is necessary to determine the main vehicle size parameters, the main performance parameters, quality parameters and the basic types of the system assembly, select the engine and tire models, and so on. These are preliminary layout and conceptual design phases, that is, the Layout phase. With the design work being carried out, the body parts are gradually selected or the design is completed step by step, and then the fine design phase is entered, that is called the precise arrangement and the virtual assembly inspection stage, that is, the packaging stage."Z* L% P P9 F4 x+ j# I/ X"The preliminary determination of these parameters is the first step in the overall layout design of the vehicle. To determine the size and parameters can not rely on the accurate calculation, according to the general plan and the performance of new product development requirements, based on a large number of car market investigation and statistical analysis on the reference of domestic and foreign similar models, select the corresponding prototype as identified parameters. At the same time should also pay attention to the parameters to comply with the requirements of various regulations and standards.Forum / 3D network technology _'W 3 C6 K 5 |% @ (E5 H & U3 xThen, according to the basic dimensions and design points of the general layout design, a variety of automobile shape effect diagrams and models are designed by the styling designer, and then the design of the vehicle interior facilities is determined. Selection of the best programs, and make the overall designer vehicle layout design, determine the overall vehicle parameters, for clay modeling, finalized after the general arrangement by the designer with the overall vehicle layout design. The overall vehicle design parameters mainly include: total length and width, total height; wheelbase, front suspension, rear suspension, wheels (front and rear wheels); the angle of departure, close to the minimum ground clearance angle, etc.. Generally speaking, with the determination of the overall design parameters, the main size parameters of the body can also be initially determined. With the main dimensions of the general design parameters and the vehicle body, the otherdimensions in the layout design parameters should be gradually specific, and make it meet the size requirements; on the other hand, initially set the vehicle and main body size parameters in the layout design can get the deepening of the revisions, and eventually was determined. The total vehicle arrangement established to control the size of the car length, width and height, wheelbase, wheel, axle load distribution and water tank, powertrain, front and rear axle, transmission shaft and wheel contour size and position, then the reference data as a reference of similar models.The designer can initially determine the length, position and angle of front and rear windows, front engine and rear suspension cover height, floor level, cowl position, seat arrangement, internal space size, control the position of the steering wheel angle and steering mechanism and pedal position and so on. In short, the layout design of engine, driving device, suspension assembly, electrical equipment, spare parts, fuel tank, vehicle interior assembly and parts of the location, size, and the main technical parameters of body size and body trunk interior space, design process determined in full body styling requirements.E& x- R/: @ * _! V8 OThe ultimate goal is to arrange all the assembly and components in a limited body size, and to maximize the indoor space and improve the market competitiveness of the product.The overall layout of the vehicle has a relationship with the body, chassis, and coordinate each other. Often cross over andover again. This coordination requires designers' wisdom and experience. In this process, a great deal of effort and time are spent on the correction of data, which requires the whole design team to do the preparatory work in advance. Due to the design of a large part of the design is improved based on the original reference models on, even if is to develop a new model, not to design all the parts, but the use of large numbers of parts used to reduce cost, reduce risk. However, in order to make the product appear in front of the user in a new image, the body parts often need to be redesigned, and the parameters of the known engine and chassis components are arranged in the whole vehicle.% K; `2, g%, C6, M9, yTherefore, we have always arranged in the design method, integrated two design ideas, that is, chassis and body simultaneously design.A new car design starts with car styling. Modeling work includes drawing renderings, making models and so on. Previous car styling was entirely dependent on hand making. After making the outline of the car by hand sketching, the final scheme is determined by making a number of clay models. Now, car stylists can use their advanced graphics processing software to express their intentions quickly. Through the effect diagram, the 3D surface model is directly modeled by the 3D surface software, and the NC machining model is directly carried out after the fairing of the surface, so that the model is maximally consistent with the designer's intention.D, CAD, machinery, technology, automotive, CA TIA, PR o/e, UG inven, tor so, lidedg e, soli dworks, CAXA, time and space, Zhenjiang 'Z & G% _ + B* K + A8 f r #In other work carried out at the same time, the whole layout has begun initial tentative plan, body structure modeling, section selection, chassis parameters, structure selection and maturation. Modeling work and vehicle structure determination are interrelated and interactive. Before the whole assembly or by computer graphic design drawing program to modify the manual, time-consuming, vehicle layout is now used by Dave software, parameter modification, visual image and increase efficiency. The main contents of the overall design include the hard point of the whole vehicle. The so-called "hard point" means the position or shape that can not be changed or forcibly determined in the design of the automobile,It can be a hole, a plane or a section of curved surface and so on, the whole vehicle meets the national standard inspection report preparation, is used in the manufacture enterprise product description document compilation, as well as the entire vehicle assembly inspection. The previous vehicle assembly inspection can only be carried out in the prototype trial, and now the assembly can be checked after assembly of the 3D digital model of the parts, and the problem can be found as soon as possible. This is unprecedented.5 N* r three-dimensional network technology forum & T* C "R. n 1 K/ a P #; three dimensional network technology t # t forum. Y 2 A, l A8 X ~7 '$4} LNext is the detailed structural design of the vehicle. Under the guidance of the whole vehicle design task book and the whole vehicle overall plan, the full parametric design of vehicle CAD is carried out. Among them, the body design of the car occupies a large proportion in the design of the whole vehicle. Body design can fully reflect the characteristics of today's advanced three-dimensional parametric design. The body design consists of two parts: the design of automobile sheet metal parts and the design of automobile interior and exterior parts.Before the body design in two-dimensional condition, poor surface quality and not easy to control, usingthree-dimensional design, through a lot of good surface processing software for surface fairing, the surface quality can meet the requirements of the class a surface, which is used in any case to do. Such as Passat car surface brilliance, and surface quality and "three old" obviously not in the same grade.Three dimensional, CAD, mechanical, technical, automotive, CA, TIA, PR, o/e, UG, inven, tor, so, lidedg, e, soli, dworks, CAXA, time, space, Zhenjiang, 7, l, `1, U,, K4,, Z3, N, A000.JPG (8.57, KB)One。