Determination of the maximal singularity-free orientation workspace for the Gough-Stewart platform

被引:81
作者
Jiang, Qimi [1 ]
Gosselin, Clement M. [1 ]
机构
[1] Univ Laval, Dept Mech Engn, Quebec City, PQ G1V 0A6, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Gough-Stewart platform; Roll-Pitch-Yaw angles; Workspace surface; Maximal singularity-free orientation workspace; PARALLEL; MANIPULATOR;
D O I
10.1016/j.mechmachtheory.2008.07.005
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This work addresses the determination of the maximal singularity-free orientation workspace at a prescribed position of the Gough-Stewart platform. Using the Roll-Pitch-Yaw angles (phi, theta, psi), the orientation workspace at a prescribed position can be defined by up to 12 workspace surfaces. A numerical algorithm is developed to determine these 12 workspace surfaces in order to obtain the maximal singularity-free orientation workspace as well as the corresponding leg length ranges. Besides, to compare the maximal singularity-free orientation workspace with the maximal singularity-free sphere, an iterative algorithm for determining the maximal singularity-free sphere is also provided. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1281 / 1293
页数:13
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