RELIABILITY IMPROVEMENT OF LOW EARTH ORBIT MICRO SATELLITE | ||||
The International Conference on Applied Mechanics and Mechanical Engineering | ||||
Article 56, Volume 18, 18th International Conference on Applied Mechanics and Mechanical Engineering., April 2018, Page 1-15 PDF (968.96 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/amme.2018.34999 | ||||
View on SCiNiTO | ||||
Authors | ||||
R. E. El Badway1; A. M. Elhady2; A. A. EL-Badawy3 | ||||
1Ph.D. Candidate, Dept. of Mechanical Engineering, AL-Azhar University, Cairo, Egypt. | ||||
2Adjunct Prof. NexSat Project Manager, NARSS, Cairo, Egypt. | ||||
3Professor, Dept. Mechatronics, German University in Cairo (GUC), Cairo, Egypt and Dept. of Mechanical Engineering, AL-Azhar University, Cairo, Egypt. | ||||
Abstract | ||||
ABSTRACT Satellite mass and reliability are two contradicting parameters affecting the satellite cost. To get a cost effective satellite, it would be necessary to compromise between low mass and high reliability. This challenge attracts the interest of many space institutions. This study presents an iterative simple technique to calculate and improve satellite reliability with low redundancy for the benefits of low mass. The failure contribution factor plays a strong role in the identification of the weak path which leads to system failure and propose the candidate component(s) to be duplicated. The present technique presents the failure contribution percentage of each component to satellite system failure and order them based on severity. Depending on the results the designer has to decide continue redundant or stop the process of improvement. The proposed technique had applied to a case study as a proof of concept. The work result shows how the proposed technique is simple and highly effective. More investigation will be applied to a real satellite project in the nearest future. | ||||
Keywords | ||||
Reliability; Probability; Fault Tree; Cut-Set; Micro satellite platform | ||||
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