External field replaceable unit division method considering development and maintenance

Abstract

The invention discloses an external field replaceable unit division method considering development and maintenance. The method comprises the steps that 1, information of all parts in the equipment development and maintenance stage and division factor index values of all the parts of equipment are acquired; 2, an optimization target model is constructed according to the division factor indexes; 3, the optimization target model is solved; and 4, according to the solving result in the step 3, the parts, of which the repairing levels and repairing modes are repairing at the base level, in the equipment are determined as external field replaceable units. According to the method, the influence of the development stage on the division of the external field replaceable units is considered, and the cost of each part of the equipment from development to use maintenance is comprehensively considered, so that the division is more suitable for actual situations and is more scientific and reasonable. Meanwhile, the main maintenance task of the product base level is defined through division, so that the equipment is timely maintained and maintained, and the long-term use performance of the equipment is ensured.

Description

technical field [0001] The invention belongs to the technical field of equipment maintenance and support, and in particular relates to a method for dividing replaceable units in the field considering development and maintenance. Background technique [0002] In the process of using and maintaining a large number of equipment / products, there are often some prominent problems such as high maintenance support costs, time-consuming and laborious maintenance, and low availability of equipment, which have a serious impact on product performance. The reason is that, on the one hand, these products have a high failure rate during use, and the guarantee conditions and capabilities at the grassroots level (civilian products can be called user-level, hereinafter referred to as the grassroots level) are limited; In the process, the traditional sequential design idea is still adopted, and sufficient maintenance engineering analysis and maintainability parallel design have not been carrie...

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Problems solved by technology

[0004] In the current LRU division process, most of the research is still oriented to the use and service phase, and few people have considered the influence of design factors, especially the characteristics of reliability, maintainability, testability, support and other maintenance support elements. Coupling relationship

In essence, the development costs brought about by different general quality characteristic design schemes are very different, and will also have a profound impact on the maintenance support planning and expenses in the use phase. For example, blindly pursuing the reduction of maintenance costs will lead to reliability design and test costs. The substantial increase of , which is very uneconomical for equipment with a not too long life cycle, the two should be considered comprehensively in the process of LRU division

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