Analysis and Design Method for Non-uniform Parallel Mechanism Structure of Dynamic/Static Platform

被引：0
|
作者：
Li H. [1 ]
Dong J. [1 ]
Guo S. [2 ]
Liu Z. [1 ]
机构：
[1] College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan
[2] Department of Mechanical Engineering, Hebei Institute of Mechanical and ElectronicTechnology, Xingtai
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2023年 / 59卷 / 17期
关键词：
dimensional synthesis; performance index; screw theory; topology design;
D O I：
10.3901/JME.2023.17.116
中图分类号：
学科分类号：
摘要：
Aiming at the design requirements of non-uniform parallel mechanism of moving / static platform, a configuration design method based on dimension synthesis is proposed. The limb of target degree of freedom parallel mechanism is constructed according to topology design theory. The number and type of platform joint points are determined, the mechanism is preliminarily designed and the degree of freedom of the moving platform is checked. Taking a five-degree-of-freedom dynamic / static platform non-uniform parallel mechanism as an example, the first dimension synthesis is used to improve the dimension parameters of the mechanism, and the preliminary model of the mechanism is established. The redundant limb and the angular limb are defined, and the position of the redundant limb is improved by the secondary dimension synthesis. The calculation of all the dimension parameters of the mechanism is completed, and the overall model of the mechanism is given. The reference analysis of the local transmission index map of Stewart mechanism with similar size and similar workspace is carried out, which shows that the mechanism has good motion / force transmission performance, and verifies the correctness and feasibility of the proposed configuration design method of parallel mechanism. © 2023 Editorial Office of Chinese Journal of Mechanical Engineering. All rights reserved.
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页码：116 / 125
页数：9
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