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To investigate the stiffness performance of planar parallel 3-RRR mechanism with flexible joints, the paper solve the first-order and second-order influence coefficient of the mechanism, and give the mechanism kinematics simulation. Based on the principle of virtual work, the constraint equation of the mechanism is established, and the stiffness matrix is deduced. In addition, the direction stiffness...
In this paper, a novel approach to the identification of instantaneous and continuous motions of a constrained rigid body is proposed by employing the concept of constraining-power rate. With the investigation into the constraining-power rate of a general constrained rigid body, the sufficient and necessary conditions of continuous motion of a general constrained rigid body are firstly presented....
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