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RESEARCH PAPERS

Numerical Analysis of the Kinematic Working Capability of Mechanisms

[+] Author and Article Information
Feng-Cheng Yang, E. J. Haug

Center for Simulation and Design Optimization of Mechanical Systems, Department of Mechanical Engineering, The University of Iowa, Iowa City, IA 52242

J. Mech. Des 116(1), 111-118 (Mar 01, 1994) (8 pages) doi:10.1115/1.2919333 History: Received August 01, 1991; Online June 02, 2008

Abstract

A broadly applicable approach for numerical analysis of the kinematic working capability of mechanisms is presented. Composite workspaces are introduced to represent position and orientation capabilities of mechanisms, both individually and together. Numerical methods for solving systems of kinematic constraint equations, using a moving-frame algorithm and equations that characterize the workspace boundary are developed. Two analytic methodologies, comparison and incorporation methods, are presented to determine whether the workspace of a mechanism satisfies design requirements. An experimental computer program for workspace analysis that incorporates a numerical solver and computer graphics for visualization on a high speed graphics workstation is outlined. The feasible positioning space of a Stewart platform that is subject to orientation constraints is computed, to illustrate the use of this approach.

Copyright © 1994 by The American Society of Mechanical Engineers
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