Abstract

In the paper, by analysing the inverse kinematics of the 3-RPS DOF parallel mechanism, establish the calculation equation between rotation angles and reference point position vector, deduce the length formula of each electric cylinder. With the help of MATLAB, calculating the corresponding rotation angles of the arbitrary reference point and the length of each electric cylinder, which is within the motion of the platform, then getting the kinematic posture, which proved to be correct and feasible.

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