3. Formation of CAE analysis capabilities a. Implement 3D CAD and select the appropriate CAE analysis software based on the problem to be analyzed; How to do a good job of CAE analysis, that is, how to use CAE analysis results to guide product development (design), this is very important. Regarding the CAE analysis, it seems that it is simple, but it is actually a hard work with a large scientific content. In some cases, it is very difficult to find the load and boundary conditions of the analysis object. Careful observation and analysis of the use of the analysis object should be carried out. Finally, the calculation results should be analyzed and confirmed, not as some people say. It is very easy to do CAE analysis. The so-called push button will calculate the result. It's easy to see other people's CAE analysis, and it's not always easy to do it yourself. Previous page Rubber Seal,Sealing Rings,Mechanical Seal Xlong Seal Co., Ltd. , http://www.xmseals.com
b. Integration of CAE and CAD data transfer to achieve design and analysis synchronization;
c. Form design standards and test specifications;
d. Form a CAE analysis guide by comparing typical examples of CAE analysis with test results;
e. Establish a database;
f. Train a certain number of CAE analysts;
g. Incorporate the regular CAE analysis project into the product development process, and use the CAE analysis report as the basis for identifying new product development results.
4. Problems that should be paid attention to when analyzing CAE
a. Turn the actual engineering problem into a mechanical problem to be correct.
b. The selection of analysis objects, the determination of load conditions and applied loads, the determination of boundary conditions (displacement constraints), the stiffness and mass of structures, the load transfer path and stress concentration are the key to CAE analysis.
c. The establishment of the CAE model is carried out after a qualitative analysis of the analysis object.
d. Distinguish static strength damage, fatigue damage, and vibration coupling damage when solving actual engineering problems. Because of the reasons for structural damage, the methods for solving problems are different.
e. When analyzing the fatigue problem of automotive structural parts, the stress (S)-fatigue life (N) curve of the material cannot be used, and the load (P)-fatigue life (N) curve of the structural member must be used.
f. In general, the established finite element model is relevant to the purpose of the analysis. The dedicated finite element model established according to the purpose of analysis is not suitable for providing accurate information beyond the purpose of analysis. It is recommended to provide a one-time explanation when proposing the purpose of analysis. Many companies and companies sometimes use a versatile model that is versatile, depending on the situation.
g. The importance of establishing a CAE analysis guide for CAE analysis should be recognized. After establishing a CAE analysis guide, you can reduce the number of trial analyses. In the absence of a CAE analysis guide, do not assume that the CAE analysis is correct after initial calculations. It should be recognized that the correctness of the CAE analysis model and the rationality of the calculation results must be judged by mechanical analysis (theory), analytical experience, experimental analysis and actual use.
h. The main purpose of CAE analysis is to optimize the design, select the best design through multi-program comparison and design optimization analysis. In general, the structure "row" or "no" is evaluated without CAE calculation results.
i. Regarding the test verification problem, it should be recognized that there is an error between the test analysis and the CAE analysis, and the two are mutually validated. The results of the test analysis and the results of the CAE analysis (at least in terms of regularity) should be substantially the same, without significant differences, and the numerical error should be within the allowable range.
5. Improve the application level of CAE
Getting started with CAE analysis is easy, but doing a good job is not easy. Many examples at home and abroad show that CAE analysts have great responsibilities, and CAE analysis can bring brilliance to companies and enterprises. If CAE analysis is not done, it will mislead the design and bring losses to the company and the company. To learn CAE analysis, 60% is in theory and 40% in experience. It is recommended that CAE analysts study hard to learn the basic theories of mechanics and related majors, generate interest and passion for CAE analysis in their work, generate inspiration and wisdom in thinking, actively use their brains when analyzing problems, and be responsible for each data. From learning to understanding, from sublimation to innovation, the analytical skills and experience accumulated over time are rationalized and standardized to guide future work. Bring into play the team spirit of design department, analysis department and test department, continuously research design methods, improve the comprehensive application ability of CAE analysis and test analysis.