Fatigue Life and Reliability Analysis of a Parallel Hip Joint Simulator

被引：0
|
作者：
Guo, Feng [1 ]
Cheng, Gang [1 ,2 ]
Yuan, Xin [1 ]
机构：
[1] China Univ Min & Technol, Sch Mechatron Engn, Xuzhou, Jiangsu, Peoples R China
[2] Shandong Zhongheng Optoelect Technol Co Ltd, Zaozhuang, Peoples R China
来源：
ROBOTICA | 2021年 / 39卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Parallel simulator elastodynamics; Corten-Dolan fatigue damage theory; Rain-flow counting method; Fatigue life; Fatigue reliability; MANIPULATOR; DAMAGE;
D O I：
10.1017/S0263574721000151
中图分类号：
TP24 [机器人技术];
学科分类号：
080202 ; 1405 ;
摘要：
Aiming at 3SPS+1PS parallel hip joint simulator, the maximum stress of branched chains under the suggested trajectory is obtained by elastodynamic analysis. Based on Corten-Dolan fatigue damage theory and Rain-flow counting method, the dynamic stress of each branched chain is statistically analyzed. The fatigue life prediction shows that branched-chain A(2)P(2)C(2) is the weakest component for the simulator. Finally, the fatigue reliability is analyzed and the fatigue life and reliability under different structural parameters are discussed. The study shows that the fatigue life of each branched chain can be increased or balanced by increasing structural parameters or exchanging initial motion parameters.
引用
收藏
页码：2079 / 2093
页数：15
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