NASA CR-2357 Feasilibility Study of an SSPS

TABLE OF CONTENTS SUMMARY 1 Structure and Control Techniques 1 RFI Avoidance Techniques 1 System Optimization 1 Device Design 1 Effects of SSPS RFI on Other Users 1 Identification of Key Issues 2 Technological Issues 2 Environmental Issues 2 Economic Issues 2 GLOSSARY OF SYMBOLS 3 INTRODUCTION 5 BASELINE DESIGN 6 Principles of a Satellite Solar Power Station 6 Location of Orbit 6. Solar Energy Conversion 8 Microwave Power Generation, Transmission, and Rectification 11 SSPS Flight Control 17 Earth-to-Orbit Transportation 17 Potential SSPS Power Levels 18 STRUCTURE AND CONTROL TECHNIQUES 19 Structural and Dynamic Analysis of the SSPS 19 Summary 19 Baseline Configuration 19 Structural Mathematical Model 24 Dynamic Mathematical Model 26 Input of Elastic Body Characteristics into Attitude Control System Analysis 27 Establishment of Flight Loading Conditions 30 Input of Flight and Control System Loadings into Structural Model to Determine Internal Loadsand Structural Deflections 32 Assessment of Baseline Configuration for Internal Loads and Deflections 32 Assessment of Candidate Material Characteristics 35

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