基于灵敏度分析的某扭力梁悬架的优化

摘要/Abstract

摘要：

根据材料力学原理推导出某扭力梁悬架横梁的剪切中心，结合空间解析几何变换公式，建立悬架运动学方程并对悬架结构参数进行优化，利用偏导数法分析得出悬架结构参数对悬架性能的影响程度，通过分析灵敏度，找出对K特性影响最灵敏的参数，并对其进行修改，实现悬架性能的优化。最后结合有限元模型验证了剪切中心的准确性，同时利用ADAMS软件和实验对数学模型的可靠性进行验证。

关键词: 扭力梁悬架, 剪切中心, 灵敏度分析, 优化

Abstract:

According to the principles of mechanics of materials, based on the spatial coordinate transformation matrix and analytic geometry of space, the shear center of a certain torsion beam suspension was established and calculated. The model was aimed to get the kinematical equation and modify the structural parameters. By using partial derivative methods, the sensitivity formula of suspension structural parameters to the kinematics property were worked out. Based on the sensitivity formula, the most influences parameters on the kinematics property would easily get,by modifying these factors, the kinematics property of this suspension would become better. A finite element model was established to show the calculation way of the shear center was reliable. ADAMS model and test results show that the analysis method is right.

Key words: torsion beam suspension, shear center, sensitivity analysis, optimization

中图分类号:

U463.2

张鹏, 王浩, 陈黎卿. 基于灵敏度分析的某扭力梁悬架的优化[J]. 中国机械工程, 2016, 27(01): 46-51.

Zhang Peng, Wang Hao, Chen Liqing. Optimization of a Certein Torsion Beam Suspension Based on Sensitivity Analysis[J]. China Mechanical Engineering, 2016, 27(01): 46-51.

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