南京理工大学学报（自然科学版）Issue(6)：926-933,8.
6-UPS并联机床静刚度分布特性
Distribution characteristics of static stiffness for 6-UPS parallel machine tool
摘要
Abstract
To estimate the static stiffness of a cross-linked stewart type ( BJ-04-02 ( A ) ) parallel machine tool,its distribution characteristics of the static stiffness in a workspace is researched. An analytical expression of a static stiffness matrix containing pose ( position and orientation ) is derived by combining two rotation transformation matrices based on Euler angles and rotation around a spatial axis. The distribution characteristics of the static stiffness in the workspace are revealed in the aspects of the distribution characteristics of the static stiffness in a given layer for a given orientation, the variations of the static stiffness with the coordinate z for a given orientation,the variations of the static stiffness with tilting directions and tilting angles. The distribution figures of the static stiffness in the workspace are obtained. The results show that the distributions of the static stiffness in different layers are similar and the static stiffness increases with the coordinate z and the translational stiffness is influenced slightly by tilting directions and tilting angles.关键词
并联机床/静刚度/欧拉角/旋转变换/平动刚度Key words
parallel machine tools/static stiffness/Euler angles/rotation transformation/translational stiffness分类
机械制造引用本文复制引用
陈小岗,孙宇,彭斌彬,刘远伟..6-UPS并联机床静刚度分布特性[J].南京理工大学学报（自然科学版）,2013,(6):926-933,8.基金项目
江苏省高校自然科学基础研究项目(12KJA460001 （）
12KJB460001) （）
淮阴工学院科研基金(HGC1016) （HGC1016）
