平行片簧机构输出位移分析  

Output Displacement Analysis of a Parallel Leaf Spring

作　　者：杨雪锋[1] 李威[1] 王禹桥[1] 叶果[1] 苏秀平[2] 

机构地区：[1]中国矿业大学,徐州221116 [2]徐州师范大学,徐州221116

出　　处：《中国机械工程》2010年第4期391-393,436,共4页China Mechanical Engineering

基　　金：高等学校博士学科点专项科研基金资助项目(20090095110012);江苏省研究生培养创新工程资助项目(CX07B_071z)

摘　　要：为了分析平行片簧机构在大变形状态下的位移输出特性,根据其结构的对称性,利用Bernoulli-Euler方程和同伦分析方法,在对单个片簧进行受力分析和变形分析的基础上建立了片簧的半段梁模型,得出了一种计算平行片簧机构输出导向位移和耦合位移解析解的方法,并采用有限元方法进行了分析验证。结果表明,在导向位移为片簧长度的34%时,耦合位移达到片簧长度的8%,此时该解析解仍具有较高的精度。According to the symmetrical structure,the output displacement characteristics of a parallel leaf spring at large deformation were analyzed by using the Bernoulli-Euler formula and the homotopy analysis method.And a half beam model was established based on the force analysis and deformation analysis of the leaf spring.The guiding displacement and coupled displacement formulas were derived and verified by finite element analysis.Results show that the analytic solution has higher accuracy even when the guiding displacement and the coupled displacement reach to the 34% and 8% of the length of the leaf spring separately.

关 键 词：平行片簧 半段梁模型 导向位移 耦合位移 

分 类 号：TH132[机械工程—机械制造及自动化]