三种不同臂数板弹簧的力学特性分析  

Mechanical character analysis of three types flexure spring with different arms

作　　者：李瑞杰[1,2] 洪国同[1] 

机构地区：[1]中国科学院理化技术研究所空间功热转换技术重点实验室,北京100190 [2]中国科学院大,学北京100190

出　　处：《低温工程》2013年第6期52-55,共4页Cryogenics

摘　　要：采用有限元分析,通过ANSYS软件对三臂、四臂、五臂的板弹簧力学特性进行了模拟。研究了板弹簧臂数、厚度和槽宽对3种臂数的板弹簧的轴向刚度、径向刚度和径轴向刚度比的影响。结果表明,随着板弹簧臂数的增加,轴向刚度、径向刚度和径轴向刚度比均有所下降;随着厚度的增大,轴向刚度和径向刚度增大,而径轴向刚度比则减小;随着槽宽的增大,轴向刚度、径向刚度和径轴向刚度比均减小。随着厚度增大,臂数不同引起的轴向刚度、径向刚度差异越来越大,而其引起的径轴向刚度比则越来越小。随着槽宽增大,臂数不同引起的轴向刚度差异越来越大,而其引起的径向刚度差异和径轴向刚度差异则越来越小。Finite element analysis was used with ANSYS software to simulate mechanical character of flexure springs with 3, 4 and 5 arms. Effect of number of arms, thickness and slot width on axial stiffness, radial stiffness and radial stiffness-axial stiffness ratio were studied respectively. Analysis result shows that axial stiffness, radial stiffness and radial stiffness-axial stiffness ratio decrease as the number of arms increa- ses. With thickness increasing, axial stiffness and radial stiffness increases while radial stiffness-axial stiff- ness ratio decreases. With slot width enlarging, axial stiffness, radial stiffness and radial stiffness-axial stiff- ness ratio decreases. As thickness increasing, difference of axial stiffness and radial stiffness caused by dif- ferent arms number increases also, while that of radial stiffness-axial stiffness ratio decreases. With slot width increasing, difference of axial stiffness caused by different arms number increases, while that of radial stiffness and radial stiffness-axial stiffness ratio decreases.

关 键 词：不同臂数 板弹簧 力学特性 

分 类 号：TB611[一般工业技术—制冷工程]