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http://dx.doi.org/10.5139/JKSAS.2002.30.8.094

Reliability Analysis of the Communications & Broadcasting Satellite Transponder and its Optimal Design  

Kim, Young-Suk (한국항공대학교 대학원 항공우주공학과)
Chang, Young-Keun (한국항공대학교 항고우주공학과)
Jeong, Chul-Oh (한국전자통신연구원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.8, 2002 , pp. 94-102 More about this Journal
Abstract
Since it would be almost impossible to recover and/or repair the satellite in space once it has been launched, a detailed analysis and design, manufacturing using the high quality workmanship, and qualification and acceptance tests in space-simulation environments are necessary for all satellite components prior to launch. Even though these efforts arc made, the failure can still occur. Therefore, redundancy should be considered in the satellite design for continuous operations in preparation for part or equipment failure. In this paper, the reliability analysis of the transponder, which is a payload of Communications & Broadcasting Satellite being developed by ETRI, was performed and compared for various design cases with different redundancies to find the optimal design. The optimal design has been finalized by investigating how the redundant components are composed from the viewpoint of technical performance measures, such as reliability, cost, schedule, and mass.
Keywords
Reliability; Failure Rate; Transponder; Redundancy; Parts Count Method; Parts Stress Method;
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