AAS 97-136

MULTIBODY MODELING OF COMMUNICATIONS SATELLITE DYNAMICS FOR GROUND-BASED SIMULATIONS

J. E. Cochran, Jr., Y-M Cheng, S. Cho and S. Yoon, Auburn University J. M. Kim, Electronics and Telecommunications Research Institute, Korea

Abstract

This paper addresses the problem of developing an attitude dynamics module for a ground-based simulation of a communications satellite. To meet this requirement, par of a multi-body dynamics code written by the second author to model missile launcher dynamics has been used. The multi-body core of the previously developed program has been greatly improved and used to model the dynamics of Koreasat by treating it as a collection of rigid and flexible bodies. Representative models are included in a test simulation to validate the dynamics module. Results otained during the process of development will be presented.