Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (2): 365-373.doi: 10.3969/j.issn.1001-506X.2020.02.15

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Optimization method for radiation interference cancellation equipment ofship spare parts configuration with criticality under multiple constraints

Liang ZHOU(), Jin MENG(), Yi LI(), Wei LIU()   

  1. National Key Laboratory for Vessel Integrated Power System Technology, Naval University of Engineering, Wuhan 430033, China
  • Received:2019-03-01 Online:2020-02-01 Published:2020-01-23
  • Supported by:
    国家自然科学基金(71801220);国家自然科学基金(61801502)

Abstract:

Availability is an important indicator of the impact of spare parts on the integrity of the equipment. It is difficult to establish the availability model with regard to the impact with criticality key availability on equipment availability. In this paper, we take the radio interference cancellation equipment of shipboard communication station as the object, and adopt the expert scoring method for the key parts of the spare parts. This paper takes the key of spare parts as one of the constraints of spare parts configuration optimization, and establishes spare parts allocation optimization model constrained by spare parts cost, spare parts volume and spare parts key. Based on the normalization of spare parts cost, volume and key, the weight factor method is used to transform multiple constraints into a single constraint, and the updating method of weight factors is also presented. Examples are given to compare the cost constraints, volume constraints and multiple constraints. What is more, the spare parts allocation scheme before and after improvement is compared, and spare parts support in the use of equipment is extended to the equipment reliability design stage. The results show that the spare parts allocation method not only takes into account the constraints of volume and cost, but also considers the influence of the key of spare parts on the availability of equipment, which makes the decision making department more reasonable; in the design of equipment reliability, it is possible to effectively reduce equipment maintenance support resources by improving weaknesses such as LRU (line replaceable unit) with a low reliability.

Key words: key, spare part, multiple constraint, weight factor, radiation interference cancellation equipment

CLC Number: 

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