1456. Weight and Structural Analysis of Four Structural Concepts for a Land Mobile Satellite System

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Paper

M J Ferebee, R L Wright, J T Farmer: 1456. Weight and Structural Analysis of Four Structural Concepts for a Land Mobile Satellite System. 1982.

 

Abstract

Weight and structural analysis data were generated for four structural concepts for a Land Mobile Satellite System (LMSS) using the Interactive Design and Evaluation of Advanced Spacecraft (IDEAS) computer-aided design and analysis program. Structural concepts analyzed included the wrapped radial rib, box ring, tetrahedral truss, and hoop column. Estimates of total spacecraft weight, structural natural frequencies and modal shapes were determined and compared for several loading conditions for each concept. Spacecraft-induced and environmental effects on antenna performance (surface accuracy, defocus and bore sight offset) are quantified. The effects of manufacturing tolerance errors on surface accuracy are defined for the tetrahedral truss concept.

 

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