摘要
对重型汽车传动轴的中间支承橡胶减振装置进行了理论分析和优化设计。首先运用隔振理论计算了该减振装置有效工作的刚度范围,再运用有限元法对橡胶体的内部结构进行了优化设计,使其刚度达到理论计算值。为了准确描述橡胶材料的非线性特性,选取Ogden三阶本构模型和试验数据进行参数拟合,提高了有限元分析的准确性。结论表明:通过建立准确的橡胶本构模型和有限元分析模型,可以对传动轴中间支承结构的减振性能进行优化,达到减振设计的目的。
A theoretical analysis and optimization design method is applied to vehicle propeller shaft supporting bracket. The effective stiffness scope of this bracket is calculated with vibration theory, and the internal structure of rubber body is optimized with finite element method. In order to accurately describe nonlinear characteristics of rubber material, Ogden third-order constitutive model is used to fit experimental data, which improves the accuracy of finite element analysis. Conclusions indicates that establishing an accurate rubber constitutive model and finite element analysis model can optimize the structure of propeller shaft supporting bracket, and achieve the purpose of vibration reducing.
出处
《机械设计与制造》
北大核心
2015年第11期42-45,共4页
Machinery Design & Manufacture
基金
湖北省交通厅科技项目资助(鄂交科教2013-731-4-1)
关键词
传动轴
中间支承
刚度
橡胶
本构模型
减振
Propeller Shaft
Middle Supporting Bracket
Stiffness
Rubber
Constitutive Model
Vibration Reducing
