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TECHNICAL PAPERS

Dynamic Modeling of Compliant Mechanisms Based on the Pseudo-Rigid-Body Model

[+] Author and Article Information
Yue-Qing Yu1

College of Mechanical Engineering and Applied Electronics Technology,  Beijing University of Technology, Beijing 100022, P.R. of Chinayqyu@bjut.edu.cn

Larry L. Howell, Craig Lusk

Department of Mechanical Engineering,  Brigham Young University, Provo, UT 84602

Ying Yue, Mao-Gen He

College of Mechanical Engineering and Applied Electronics Technology,  Beijing University of Technology, Beijing 100022, P.R. of China

1

Corresponding author, a visiting professor in Brigham Young University in November 2003–April 2004.

J. Mech. Des 127(4), 760-765 (Feb 12, 2005) (6 pages) doi:10.1115/1.1900750 History: Received August 20, 2004; Revised February 12, 2005

Based on the principle of dynamic equivalence, a new dynamic model of compliant mechanisms is developed using the pseudo-rigid-body model. The dynamic equation of general planar compliant mechanisms is derived. The natural frequency of a compliant mechanism is obtained in the example of a planar compliant parallel-guiding mechanism. The numerical results show the effectiveness and advantage of the proposed method compared with the methods of FEA and flexible mechanisms.

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Copyright © 2005 by American Society of Mechanical Engineers
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Figures

Grahic Jump Location
Figure 1

Flexible beam with end force

Grahic Jump Location
Figure 3

A compliant mechanism

Grahic Jump Location
Figure 5

Flexible beam with end moment

Grahic Jump Location
Figure 7

Flexible mechanism

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