一种外LET柔顺半铰的动力学建模与分析

中国机械工程

一种外LET柔顺半铰的动力学建模与分析

李鹏飞;曹博宇;汪振宇;赵晨;赵荣昌

西安理工大学机械与精密仪器工程学院，西安，710048

出版日期:2019-07-25 发布日期:2019-07-30
基金资助:
国家自然科学基金资助项目（51475364）；
陕西省科技厅重点研发计划资助项目（2017ZDXM|GY|007）；
西安市科技计划资助项目（2017224CG/CXY035）

Dynamics Modeling and Analysis for a Kind of Half Outside LET Compliant Joint

LI Pengfei;CAO Boyu;WANG Zhenyu;ZHAO Chen;ZHAO Rongchang

School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048

Online:2019-07-25 Published:2019-07-30

摘要/Abstract

摘要： 对一种外LET柔顺半铰进行建模与动力学特性分析。采用斜率不连续的绝对节点坐标法（ANCF）建立了该柔顺半铰系统动力学方程；对外力作用下半铰中心线和外轮廓的运动变形进行仿真，与实验结果对比，证明了绝对节点坐标法对柔顺半铰动力学建模的有效性；进一步分析了半铰外形尺寸变化对其变形规律的影响。

关键词: 柔顺机构, 外LET柔顺半铰, 绝对节点坐标法, 斜率不连续性

Abstract: A model of a kind of half outside lamina emergent torsional（LET）compliant joints was set up and the dynamics characteristic analyses were carried out herein. The ANCF method with the slope discontinuity was used to derive the system dynamics equation of the LET compliant joints. Motion deformation of the center line and contour of the LET compliant joints applied external forces were simulated. Comparing experimental results with that of simulations, the effectiveness using ANCF to model a half outside LET compliant joints was proved. Furthermore, influence laws of contour dimensions to deformation of the compliant joints were analyzed.

Key words: compliant mechanism, half outside lamina emergent torsional(LET) compliant joint, absolute node coordinate method (ANCF), slope discontinuity

中图分类号:

TH113
O313.7

李鹏飞;曹博宇;汪振宇;赵晨;赵荣昌. 一种外LET柔顺半铰的动力学建模与分析[J]. 中国机械工程.

LI Pengfei;CAO Boyu;WANG Zhenyu;ZHAO Chen;ZHAO Rongchang. Dynamics Modeling and Analysis for a Kind of Half Outside LET Compliant Joint[J]. China Mechanical Engineering.

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