Detecting Failure Modes, Effects and Criticality Analysis of LEO Spacecraft Solar Array System | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 53, Volume 17, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 17 – April 11 - 13, 2017, April 2017, Page 1-13 PDF (617.23 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.2017.22489 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Ahmed Mokhtar Mohamed1; Fawzy ElTohamy H. Amer1; R. M. Mostafa2 | ||||
| 1Egyptian Armed Forces, Egypt. | ||||
| 2Professor of Electrical Engineering. Faculty of Industrial Education, Beni-Suef University, Egypt. | ||||
| Abstract | ||||
| In this paper the reliability issue of a solar array of LEO spacecraft was analyzed with Failure Modes Effects and Criticality Analysis (FMECA) to ensure that the solar array will deliver the required power to the spacecraft until the end of life without failures. The main failure modes, their effects and criticalities were illustrated. A fault tree was built. Both qualitative and the quantitative analysis of the fault tree were performed. The probability of the top event, the structural importance and the critical importance coefficients of different basic events were detected and overcome by protective actions. According to the analyses, the main reasons of the satellite solar array failure and the list of the critical components were presented. The effects of different failures were classified according to the severity and the criticality of the faults. Recommendations for improving solar arrays' reliability were provided for reliability design and structure improvement of the satellite solar array. | ||||
| Keywords | ||||
| Failure Modes Effects and Criticality Analysis (FMECA); Solar array system; LEO spacecraft | ||||
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