Reliability, maintainability and supportability (RMS)-oriented planning and design method for line replaceable unit (LRU)

Abstract

The invention discloses a reliability, maintainability and supportability (RMS)-oriented planning and design method for a line replaceable unit (LRU). The method comprises the following steps of: 1, collecting information; 2, preliminarily planning the LRU; 3, qualitatively analyzing an LRU planning and design scheme; 4, quantitatively analyzing the LRU planning and design scheme; and 5, comprehensively balancing a qualitative analysis result and a quantitative analysis result to obtain a final conclusion. The RMS-oriented planning and design method for the LRU has the advantages that: the phenomenon of non-correlation in product performance design and maintainability design in the prior art is eliminated; during the product performance design, requirements for RMS design are met; high work load for the product performance design and the RMS design can be reduced; the advantages and disadvantages of various kinds of LRU planning and design schemes can be analyzed, and the optimum scheme is selected; and the method is of great importance to guidance of product design and improvement of maintainability design.

Description

technical field [0001] The invention relates to a planning and design method of LRU (Line Replaceable Unit, field replaceable unit) oriented to RMS (Reliability, Maintainability and Supportability, reliability, maintainability and supportability). The RMS design requirements should be considered synchronously in a timely manner, so as to improve the current situation that the product design and RMS design are out of touch to a certain extent. It belongs to the technical field of comprehensive design of performance and maintainability in system engineering system. Background technique [0002] Field replaceable unit, also known as field replaceable unit, is defined in GJB / Z91-97 as: a product and its components that can be replaced in the use environment, that is, in the field or combat environment. [0003] LRU is an important component unit of equipment products. Improving the level of LRU planning and design can improve the RMS characteristics of products, especially in t...

AI Technical Summary

Problems solved by technology

As the product level corresponding to the maintenance at the grassroots level, LRU has important significance in the actual maintenance of products, but it has not attracted enough attention in product design.

LRU planning is a basic part of product design, involving a lot of content, not only related to product functions, but also closely related to RMS, and has data interaction with product reliability and performance (such as overall layout scheme, installation and fastening connection methods, etc.). However, at present, insufficient attention has been paid to this aspect of work, and there are not many studies done. There is no clear method and analysis process to realize the division and determination of LRU. Therefore, in actual work, LRU division is more based on past experience. , and even some equipment is not clearly divided into LRUs during design, which increases the difficulty of product maintenance

In addition, even if the designers want to do a good job in the LRU design work in a down-to-earth manner, when it is actually implemented in the actual design process, they find that there is no clear and feasible implementation method that can be adopted

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