Accurate Equivalent Beam Model of a Planar Compliant Mechanism with Elliptical Flexure Hinges

摘要：

An accurate and efficient equivalent beam model (EBM) for a planar compliant mechanism with elliptical flexure hinges is presented. First, based on 3D finite element analysis (FEA) for one-eighth of a single elliptical flexure hinge, a set of fictitious beams with identical stress and stiffness characteristics is derived. Then the static and dynamic performances of an eight-bar compliant mechanism with elliptical flexure hinges are studied based on the EBM and 2D FEA under either the plane stress or plane strain assumptions. Compared with the results of 2D FEA, the EBM has the advantages of high efficiency and good accuracy.

关键词： equivalent beam model elliptical flexure hinge compliant mechanism finite element analysis

作者: Zhaocheng Zhang Hong Hu

作者单位: Department of Mechanical Engineering and Automation Harbin Institute of Technology Shenzhen Graduate School Shenzhen, 518055, P.R. China

会议类型: 国际会议

会议名称: 2009 International Conference on Measuring Technology and Mechatronics Automation(ICMTMA 2009)(2009年检测技术与机电自动化国际会议)

会议地点: 张家界

会议语种:英文

页码: 11-14

在线出版日期: 2009-04-11（万方平台首次上网日期，不代表论文的发表时间）