关键词: 固体推进剂火箭发动机;结构可靠性;可靠性计算;可靠性评价

Abstract: he consistance of the population dissociation coefficient method andthe sample dissociation coefficient method for the calculation of structural reliabilityin solid rocket motors was reviewed.At the same time it is shown the population dissociation coefficient method is abetter calculating method for structural reliability in solid rocket motors and themajor factor affecting structural strength reliability is the standard deviation.

Key words: Solid propellant rocket engine;Structural reliability;Reliability calculation;Reliability assessment