ANSYS_Reference_Book

Author:Michael R. Hatch Publish:CRC Press
14
2012/9/21
Taiwan Auto-Design Co. 虎門科技
ANSYS, INC.: International Competitive Benchmarks and Financial Gap Analysis (Financial Performance Series)
• • Excerpted from ANSYS, INC.: International Competitive Benchmarks and Financial Gap Analysis (Financial Performance Series) by Icon Group Ltd.. Copyright c 2000. Reprinted by permission. All rights reserved Though we heavily rely on historical performance, the figures reported in this report are not historical but are forecasts and projections for the coming fiscal year. The forecasts are updated quarterly. This particular report was updated in the last quarter. In order to maintain comparability over time and across companies and countries, we use an index system. In the case of a firm's assets, we treat the total assets as equaling 100, irrespective of the value of the local currency. All other assets are then calculated as a percent from total assets. In this way, the structure of the firm's assets can be easily interpreted and compared with international benchmarks. For liabilities, total liabilities and equity are indexed to equal to 100. For the income statement, total revenue is indexed to equal 100, and all other figures are calculated as a percent of these figures. Ratios are projected using raw financial statistics and, as ratios, are therefore comparable. The source(s) for the various raw statistics include public filings, corporate releases, and various other data sources. Given a company's financial structure, the resulting figures are benchmarked across "leading competitors". In choosing the leading competitors, Icon Group chooses only those firms with sound financial situations or those not undergoing radical restructuring, or where random volatility, mergers, or bankruptcy affects financial performance. Since the calculation of competitors' benchmarks proceeds in a similar fashion, but are aggregated across all competitors, one can directly conduct a financial gap analysis. Here, Icon Group graphically reports, for each part of the financial statement, the larger gaps that the firm has vis--vis the leading competitors. A gap need not be a bad sign. Rather, it is simply a substantial difference that might merit further attention or signal a firm's relative strength or weakness for the coming fiscal year. Again, all figures are projections, so due caution is required.
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Author:Saeed Moaveni Publish:Prentice Hall
13
2012/9/21
Taiwan Auto-Design Co. 虎門科技
Vibration Simulation Using MATLAB and ANSYS
• • Book Description Transfer function form, zpk, state space, modal, and state space modal forms. For someone learning dynamics for the first time or for engineers who use the tools infrequently, the options available for constructing and representing dynamic mechanical models can be daunting. It is important to find a way to put them all in perspective and have them available for quick reference.It is also important to have a strong understanding of modal analysis, from which the total response of a system can be constructed. Finally, it helps to know how to take the results of large dynamic finite element models and build small MATLAB?state space models.Vibration Simulation Using MATLAB and ANSYS answers all those needs. Using a three degree-of-freedom (DOF) system as a unifying theme, it presents all the methods in one book. Each chapter provides the background theory to support its example, and each chapter contains both a closed form solution to the problem-shown in its entirety-and detailed MATLAB code for solving the problem. Bridging the gap between introductory vibration courses and the techniques used in actual practice, Vibration Simulation Using MATLAB and ANSYS builds the foundation that allows you to simulate your own real-life problems.FeaturesoDemonstrates how to solve real problems, covering the vibration of systems from single DOF to finite element models with thousands of DOFoIllustrates the differences and similarities between different models by tracking a single example throughout the bookoIncludes the complete, closed-form solution and the MATLAB code used to solve each problemoShows explicitly how to take the results of a realistic ANSYS finite element model and develop a small MATLAB statespace modeloProvides a solid grounding in how individual modes of vibration combine for overall system response