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TECHNICAL BRIEFS: Other Technical Briefs

The Joint Distribution Problem With Multiple Articular Contact Forces

[+] Author and Article Information
J. G. Andrews

Department of Mechanical Engineering, The University of Iowa, Iowa City, Iowa, 52242

C. K. Cheng

Department of Biomechanical Engineering, National Taiwan University Hospital, Taipei, Taiwan

J Biomech Eng 112(3), 364-366 (Aug 01, 1990) (3 pages) doi:10.1115/1.2891197 History: Received March 06, 1989; Revised March 10, 1990; Online March 17, 2008

Abstract

The single joint distribution problem with two or more unknown bony contact forces is considered, and an optimal solution procedure free of ad hoc assumptions is described. If two bony contact forces are present, a strictly muscle force dependent equality constraint exists that allows for initial independent estimation of muscle forces, followed by unique estimation of all bony contact force components perpendicular to the straight line connecting their known points of application. However, if three or more bony contact forces are present, no strictly muscle force dependent equality constraint exists, solution separability is lost, and optimal muscle and bony contact forces are obtained simultaneously.

Copyright © 1990 by The American Society of Mechanical Engineers
Topics: Force , Muscle
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