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本文对地空导弹武器系统的可靠性分配进行了探讨. 地空导弹武器系统的可靠性应包含两个概率:可发射概率P_p和飞行成功概率P_f. P_p由系统的MTBF和MTTR决定,即P_p=1-(MTTR)/(MTBF)+(MTTR)如果系统在使用寿命期内的失效率基本稳定,则P_f可由下式决定:P_f=EXP(-t/MTBF).其中,t为系统的任务时间.于是,整个武器系统的可靠度P为: P=P_p×P_f=(1-(MTTR)/(MTBF+MTTR))·EXP(-t/MTBF) 考虑到地空导弹武器系统的各个组成部分的复杂程度的不同和对完成系统规定功能所起作用的影响程度不同,文中强调了在可靠性分配中,必须结合工程实践分析,确定出各组成部分的复杂程度系数和重要性系数,在建立系统可靠性逻辑框图后,用AGREE分配模型,对系统可靠性作“加权”分配是比较简便和可行的.
In this paper, the reliability distribution of surface-to-air missile weapon system is discussed.The reliability of surface-to-air missile weapon system should include two probabilities: transmittable probability P_p and flight success probability P_f.P_p is determined by the system MTBF and MTTR, that is, P_p = 1- (MTTR) / (MTBF) + (MTTR) If the failure rate of the system during the life of the system is basically stable, P_f can be determined by the following formula: P_f = EXP (-t / MTBF) Mission time. Therefore, the reliability P of the whole weapon system is: P = P_p × P_f = 1- (MTTR) / (MTBF + MTTR)) · EXP (-t / MTBF) Considering each of the ground-to-air missile weapon systems The complexity of the components and the impact of the functions to complete the functions of the system are different. In the paper, we emphasize that in the reliability distribution, we must combine the engineering practice analysis to determine the complexity and importance of each component, After establishing the logic diagram of system reliability, it is relatively simple and feasible to use AGREE assignment model to “weight” the system reliability.