正态型有寿件的备件方案确定方法

doi:10.7527/S1000-6893.2017.221147

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2018, Vol. 39 ›› Issue (1): 221147-221147.doi: 10.7527/S1000-6893.2017.221147

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles Next Articles

Determination method for support plan for life-limited spares with normal distribution

SHAO Songshi¹, ZHANG Zhihua¹, LI Hua², LIU Renyang³

1. Office of Research & Development, Naval University of Engineering, Wuhan 430033, China;
2. Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, China;
3. Naval Academy of Armament, Beijing 100161, China

Received:2017-01-17 Revised:2017-04-19 Online:2018-01-15 Published:2018-01-26
Supported by:
National Defense Pre-research Foundation of China (51304010206, 51327020105)

Abstract

Abstract: To address the problem of uncertainty of work life distribution and difficulty in predicting demands for life-limited spares, a determination method for support plan for life-limited spares is proposed based on normal-equivalence. The work life of life-limited spares is obtained to be equivalent to normal distribution based on Bayesian theory, and the number of the spares demand is then calculated. The life replacement probability is put forward to measure the safety benefits during the replacement cycle. The optimal replacement cycle is obtained by tradeoff between safety benefits and economic costs. A comparison of simulation and calculation results shows that our method is reasonable and feasible and owns high precision.

Key words: normal distribution, life-limited spares, spares demand, replacement cycle, spares plan

CLC Number:

SHAO Songshi, ZHANG Zhihua, LI Hua, LIU Renyang. Determination method for support plan for life-limited spares with normal distribution[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(1): 221147-221147.

References

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Determination method for support plan for life-limited spares with normal distribution

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