STANDARD BASED RELIABILITY PREDICTION OF TRAVELING WAVE TUBE IN COMMUNICATION SATELLITE
Journal Title: Indian Journal of Computer Science and Engineering - Year 2011, Vol 2, Issue 5
Abstract
A Traveling Wave Tube (TWT) is a vital component of satellite communication transponder. Before launch, it is essential to ensure that TWT meets the life of the satellite in the orbit.. Standard based reliability prediction is fairly accurate, widely used in USA and Europe and specified to the contractors. Part stress and parts count analysis are considered in all the standards. In this paper, part stress analysis based on US Military standard, MIL – HDBK – 217F is considered. Since the standard does not provide the failure rate of individual components used in TWT, Preferred Reliability Practices specified by NASA USA in their documents No PD – ED – 1216 is considered for parts count analysis. The reliability estimated by the above standards does not meet the life of 10 years .In the past five years, tremendous improvements have occurred in the materials, design, fabrication, testing and simulation of TWT. Based on these improvements, reliability is recalculated. The revised reliability estimate meets the life of 10 years and coincides with the reliability claimed by the global suppliers of space TWT.
Authors and Affiliations
M. SIVANANDAM , S. RAVI
Keywords
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