The Forward Kinematics Analysis of 6-3 Stewart Parallel Mechanisms

In order to study the forward kinematics analysis of 6-3 Stewart parallel mechanisms, this paper presents a new analytical method. Analyzing the coupling relationships between the position and orientation variables of the moving platform, additional useful information is obtained, thus eleven compatible algebra equations used to solve this problem are obtained. Based on this, the orthogonal complement method has been used several times to eliminate the redundant variables, the forward kinematics of 6-3 Stewart parallel mechanisms can be expressed as an eight order equation in the end. Finally a specific example is introduced to verify the method offered in this paper.