关键词: 卫星, 故障, 可靠性增长

Abstract: By now, the working hours of DFH- 3 serial satellites had totalled up to nearly 30 years. Based on the statistical data of the failures, the paper analyzed the character of the failure time, the failure of different subsystems, the failures with different effects, and the reliability growth of the serial satellite. As a result, the failures of the early satellite accorded with the bathtub curve, the failures of the late satellites were close to an equal curve, and the satellite reliability had a notable growth.

Key words: satellite, failure, reliability growth