• CN:11-2187/TH
  • ISSN:0577-6686

›› 1991, Vol. 27 ›› Issue (2): 13-20.

• 论文 • 上一篇    下一篇

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空间连杆机构位置误差分析的环路增量法

刘深厚;陆锡年;石则昌   

  1. 天津大学
  • 发布日期:1991-03-01

LOOP INCREMENTAL THEORY FOR POSITION ERROR ANALYSIS OF SPATIAL LINKAGE MECHANISMS

Liu Shenhou;Lu Xinian;Shi Zechang   

  1. Tianjin University
  • Published:1991-03-01

摘要: 本文利用空间连杆机构的环路方程导出了空间机构位置误差的一般表达式。机构中每一构件的运动参数用H-D矩阵来表示,矩阵微分采用左乘、或右乘矩阵来表达,通过灵活选取首末构件及左、右乘矩阵的形式,可方便地得到待求误差变量的表达式。

关键词: 空间机构, 运动误差

Abstract: A generalized expression of position errors of spatial linkage mechanisms is derived from the loop equation. The parameters of motion of the links are described by H-D matrix, and the differential matrices take the forms of pre-multiplying and post-multiplying matrices. The unknown variables of errors can be conveniently solved by an appropriate selection of the first member and the end member of the mechanism, as well as the premultiplying and post-multiplying differential matrices.

Key words: 空间机构, 运动误差