%0 Journal Article
%T 基于正交设计法的2UPS-RPU并联机构精度综合<br>Accuracy Synthesis of 2UPS-RPU Parallel Manipulator Based on Orthogonal Design
%A 牛亚雯
%A 温淑鸿
%A 冯志友
%J 机械科学与技术
%D 2015
%X 针对并联机构各原始误差对位姿误差的影响程度不同，使用穷举法在整个工作空间中进行精度综合计算量太大的问题，提出一种原始误差影响因子加权法与正交设计法相结合的精度综合方法。以2UPS-RPU并联机构为对象进行精度综合，并对综合结果进行验证。验证结果表明：该方法能够快速地得到22项误差源的公差值，且在整个工作空间内，末端位姿误差δy、δz、δα、δβ超出给定范围的概率仅分别为4.5%、2.08%、0.25%、2.16%，分析结果也验证了此方法的可行性与正确性。<br>Aiming at the different original errors affecting on the pose errors and the large calculation in the exhaustion method to solve the parallel mechanism's accuracy synthesis problem in the whole workspace, we propose an approach combining the impact factor weighting method of geometry original errors with the orthogonal design method, and take the 2UPS-RPU parallel mechanism as an object to get the accuracy synthesis result and validated the final accuracy synthesis result. The verification result shows that it is easily to get the tolerance value of 22 geometry original errors in the present method, and in the whole workspace the probability of the pose error δy、δz、δα、δβ beyond the given accuracy range are 4.92%, 2.33%, 1.25%, 1.42% respectively and the feasibility and validity of the present method are verified
%K 并联机构
%K 精度综合
%K 正交设计
%K 影响因子&lt
%K br&gt
%K accuracy synthesis
%K impact factor
%K orthogonal design
%K parallel mechanism
%U http://journals.nwpu.edu.cn/jxkxyjs/CN/abstract/abstract6102.shtml