New PR Pseudo-rigid-body Model of Compliant Mechanisms Subject to Combined Loads

Abstract

Abstract: Based on the pseudo-rigid-body model (PRBM), a new 2-Degree of freedom pseudo-rigid-body model with a prismatic pair is proposed. The axial displacement and lateral displacement is presented by the prismatic pair and revolute pair, respectively, and so the deflection of a compliant link subject to a combined force and moment loads can be simulated. The PR pseudo-rigid-body model of planar compliant mechanism is developed. A three-dimensional optimization for the characteristic radius factors and a linear regression method for the spring stiffness coefficients are presented. The advantage of the PR pseudo-rigid-body model is illustrated numerically through the comparison with the 1R, 2R PRBM models and compliant link.

Key words: Combined loads, Compliant mechanism, Prismatic pair, Pseudo-rigid-body model

CLC Number:

TH132

YU Yueqing;XU Qiping;ZHOU Peng. New PR Pseudo-rigid-body Model of Compliant Mechanisms Subject to Combined Loads[J]. , 2013, 49(15): 9-14.

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New PR Pseudo-rigid-body Model of Compliant Mechanisms Subject to Combined Loads

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