Abstract:

Spare parts programming plays an important role in the missile integrated logistic support. To improve the spare sufficiency, the influence of varied environment conditions on missile life is studied. The Poisson process is introduced to describe the maintenance status of the missile line replaceable unit (LRU) in whole life cycle, and a spare parts programming method of missile line replaceable LRU is proposed based on mission profile. The influence of varied mission profiles on LRU reliability is analyzed, and  the LRU spare model is established by using the Poisson process. Furthermore, due to the LRU spare parts storage failures and term detecting loss, the spare model is modified. The proposed method is used for the tactical missile LRU spare parts programming. The result shows that the method is able to program the LRU efficiently, satisfy the missile system availability requirement and economize the whole life cycle charge.