摘要
弹簧工作条件的复杂化和轻量化设计需要精确仿真模拟。边界定义和求解,以及后处理是有限元分析的重点。有限元模型边界定义,不仅影响有限元的求解,而且直接影响仿真的真实性和计算结果的准确性;有限元求解定义的合理性直接影响有限元求解的效率,影响计算结果的合理性;有限元后处理是产品设计合理性判定的依据。以轿车减震器系统采用的麦弗逊结构为例,通过求解得到弹簧自由状态时的有限元模型以及弹簧自由状态下压缩到设计高度时的过程和形状。
Complicated and lightweight design of spring working condition needs accurate simulation. Boundary definition and solution, and post-processing are keys of finite element analysis. The boundary definition of finite element model affects finite element solution and affects truth of simulation and accuracy of calculating results directly. The reasonableness of fi- nite element solution definition affects efficiency of finite element solution and affects reasonableness of calculating results. Finite element post-processing is basis of judging product design reasonableness. To take Macpherson structure adopted by car shock absorber system as example, the finite element model of spring free state and the process and shape of spring free state compressed to design height are got by solving.
出处
《金属制品》
2015年第1期47-49,53,共4页
Metal Products
关键词
悬架弹簧
有限元分析
仿真
减震器
弹簧设计
suspension spring
finite element analysis
simulation
shock absorber
spring design
