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Proceedings Paper

High-technology multibody spacecraft dynamics simulation methods
Author(s): Douglas V. LaMont; Jack J. Rodden; William E. Nelson
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Paper Abstract

This paper describes a new formulation of the equations of motion for a system of connected rigid bodies. The bodies may either be hinge or slide connected. The connection topology is assumed to be that of a tree. Starting with the Newton-Euler equations of motion, the equations are transformed into a new system of equations using generalized velocity coordinates (both translational and rotational). The selection of these generalized coordinates is what sets this development apart from others. Constraint forces and/or torques that do not work are isolated and eliminated from the equations of motion. The generalized velocities are reduced to a minimum set. The vector operator equations of motion give a set of nonlinear differential equations that are amenable to standard numerical integration techniques.

Paper Details

Date Published: 1 October 1993
PDF: 12 pages
Proc. SPIE 1950, Acquisition, Tracking, and Pointing VII, (1 October 1993); doi: 10.1117/12.156602
Show Author Affiliations
Douglas V. LaMont, Lockheed Missiles & Space Co., Inc. (United States)
Jack J. Rodden, Lockheed Missiles & Space Co., Inc. (United States)
William E. Nelson, Lockheed Missiles & Space Co., Inc. (United States)


Published in SPIE Proceedings Vol. 1950:
Acquisition, Tracking, and Pointing VII
Michael K. Masten; Larry A. Stockum, Editor(s)

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