非线性变刚度橡胶悬架结构灵敏度分析与参数优化  

Structural parameter optimization and sensitivity analysis of rubber spring for nonlinear rubber suspension

作　　者：孙蓓蓓[1] 孙庆鸿[1] 许志华[1] 

机构地区：[1]东南大学机械工程系,南京210096

出　　处：《制造业自动化》2006年第2期1-4,9,共5页Manufacturing Automation

基　　金：国家自然科学基金资助项目(50575040);江苏省自然科学基金资助项目(BK2003202)

摘　　要：针对工程车辆变刚度橡胶悬架,在建立橡胶弹簧有限元参数化模型的基础上,通过橡胶弹簧的结构参数对轴向变形量的灵敏度分析,掌握不同载荷下结构参数变化对刚度影响的规律,确定最敏感的设计变量。以整车悬架动态参数优化获得的最佳非线性刚度特性曲线为优化目标,实现了新型变刚度橡胶弹簧结构参数的优化设计。The parameterized nonlinear finite-element model of the rubber spring, which used as the main elastic component in a construction vehicle suspension, has been built. The sensitivity analysis of structural parameter of rubber spring was explored to find the law of each parameter＇s contribution to stiffness in vertical direction, and the most sensitive design variable was found for optimization. The optimum nonlinear stiffness curve of rubber suspension was obtained through the whole vehicle dynamics optimization. The structure parameters of rubber spring have been optimized for fulfilling the optimum nonlinear stiffness curve.

关 键 词：悬架 橡胶弹簧 非线性 刚度 有限元 参数优化 

分 类 号：O343.3[理学—固体力学] U260[理学—力学]