RESEARCH PAPERS: Mechanisms Papers

Dynamic Analysis of Constrained System of Rigid and Flexible Bodies With Intermittent Motion

[+] Author and Article Information
Y. A. Khulief, A. A. Shabana

Department of Mechanical Engineering, University of Illinois at Chicago Circle, Chicago, Illinois 60680

J. Mech., Trans., and Automation 108(1), 38-45 (Mar 01, 1986) (8 pages) doi:10.1115/1.3260781 History: Received July 10, 1984; Online November 19, 2009


A method for dynamic analysis of large-scale constrained system of mixed rigid and flexible bodies with intermittent motion is presented. The system equations of motion are written in the Lagrangian formulation using a finite set of coupled reference position and local elastic generalized coordinates. Equations of motion are computer generated and integrated forward in time using an explicit-implicit integration algorithm. Points in time at which sudden events of the intermittent behavior occur are monitored by an event predictor which controls the integration algorithm and forces a solution for the system impulse-momentum relation at those points. Solutions of impulse-momentum relations define the jump discontinuities in the composite velocity vector as well as the generalized impulses of the reaction forces at different joints of the mechanical system.

Copyright © 1986 by ASME
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