桥式柔性机构连杆结构设计及有限元分析
Structure Design and Finite Element Analysis of a Linkage of Bridge-type Flexible Amplification Mechanism
鲁凯清 1沈剑英1
作者信息
- 1. 嘉兴大学机械工程学院嘉兴 314001
- 折叠
摘要
桥式柔性机构在精密微位移技术领域得到了广泛应用，针对常用的实心连杆桥式柔性机构，提出空心连杆的桥式柔性机构，根据孔的形状分为矩形和椭圆形二种，并引入系数k代表孔的长宽的比值。然后，采用ANSYS软件进行分析桥式柔性机构放大倍数、一阶频率。有限元分析结果表明：放大率随着系数的增大而减小，一阶频率随着系数k的增大而增大，这对于更好地设计桥式柔性机构具有理论指导意义。
Abstract
The bridge-type flexible mechanism is widely used in the field of precision micro-displacement technology. For the commonly used solid-link bridge-type flexible mechanisms, this study proposes a hollow-link bridge-type flexible mechanism; these mechanisms are classified into two types: rectangular and elliptical based on the shape of the hole, and a coefficient k is introduced to represent the ratio of the hole\'s length to its width.Then, the magnification factor, and first-order frequency of the bridge-type flexible mechanism are analyzed by the ANSYS software.The finite element analysis results indicate that the amplification factor decrease as the coefficient increases, while the first-order frequency increases as the coefficient k increases. These findings provide theoretical guidance for the optimal design of bridge-type flexible mechanisms.关键词
桥式柔性机构/有限元分析/放大率/一阶频率Key words
Bridge-type flexible mechanism/Finite element analysis/Amplification factor/First-order frequency引用本文复制引用
鲁凯清,沈剑英.桥式柔性机构连杆结构设计及有限元分析[EB/OL].(2026-09-18)[2026-09-24].http://www.paper.edu.cn/releasepaper/content/202609-27.学科分类
工程基础科学
