基于hyperworks汽車車架有限元分析外文翻譯-汽車設(shè)計-免費閱讀
【正文】 共 5 頁 第 5 頁 Analysis and Evaluation of Minivan Body Structure Finite Element Methods Abstract The paper describes the application of MSC product in Beiqi Futian Vehicle Co.,Ltd and then describes how the finite element methods can be used for analysis and evaluation of minivan body structure. Including static, dynamic, fatigue, crashworthiness analysis, optimization and sensitivity and so on. In this paper, Author use calculate the strength and stiffness in both bending and torsion loadcase. Summarized the strength and stiffness evaluation standards for minivan. And then done the normal model analysis in order to consider the influence of tyre unbalance and engine idle excite. The calculations and analysis were verified by test. Introduction Automotive panies are focussing on the processes of delivering a new or updated high quality vehicle to the market faster and cheaper. Analytical processes like CAE are extensively used upfront to develop a robust quality product. As well known, the automotive body structure is very plex. The body is the key assembly of an automotive. Body structure must have enough strength in order to ensure its fatigue life. And enough stiffness ensure assemble and make use of. In the mean time, it had to have reasonable dynamic characteristic in order to control vibration and noise. By means of using finite element methods, we can satisfy the requiring of automotive design, and develop the level of design radically. In addition, shortcut the development period and reduce the cost. 1 . Body Structure Static Analysis The key of static analysis is to ensure reasonable loads and their standard. 共 5 頁 第 6 頁 The loads of body structure are very plex. But mostly have two kind like below: (1) Torsion (simulate the wheel run up) the torque can be confirm by axle load , suspension stiffness and the rough of load surface. For minivan it can is equal about . (2) Bending (simulate the weight of passenger and luggage) the load can be ensure according tothe number of passengers and the weight of luggage. The static analysis can be divided into strength analysis and stiffness analysis. For static strength analysis, the safety factor is . For static stiffness analysis,
畢業(yè)設(shè)計相關(guān)推薦
鄂ICP備17016276號-1