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A Method of Maintainability Evaluation and Weak Link Identification in Product Design Stage

A weak link and product design technology, applied in the field of maintainability evaluation, can solve problems such as high degree of subjective arbitrariness, poor pertinence in the overall evaluation of maintainability attributes, and difficulty in identifying weak links in maintainability design, so as to improve pertinence and reduce effect of dependence

Active Publication Date: 2017-04-19
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

However, the current maintainability evaluation directly evaluates each maintainability attribute of the entire product, ignoring the impact of tasks and maintenance frequency on maintainability, and the degree of subjective arbitrariness is large, so it is difficult to accurately reflect the corresponding attribute values ​​of the product
On the other hand, the overall evaluation of maintainability attributes is not very targeted, it is difficult to identify specific weak links in maintainability design, and cannot guide the improvement of design

Method used

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  • A Method of Maintainability Evaluation and Weak Link Identification in Product Design Stage

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Embodiment Construction

[0058] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0059] In the present invention, analyzing the maintainability attribute from the maintenance point of view and determining its basic analysis object are the basis of maintainability index evaluation and calculation. The maintainability attribute classification and the basic analysis object diagram of attributes are as follows: figure 1 shown. Consider 13 maintainability attributes, including 9 maintenance time attributes and 4 maintenance resource attributes. Maintenance time attributes include simplification, modularity, standardization, accessibility, disassembly, ergonomics, error prevention, fault diagnosis, and maintenance safety. Among the attributes of maintenance time, accessibility, disassembly, human factors engineering and maintenance safety are operation operation attributes, and their basic analysis and evaluation objects ...

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Abstract

The invention discloses a method for maintainability assessment and weak link identification of a production design stage. The process is to analyze maintainability attributes of a product from a viewpoint of maintenance influence, classify the maintainability attributes and clarify basic analysis and assessment layer of each attribute, and define a maintainability index of the product on the basis so as to assess the maintainability of the product in the design stage. The method for maintainability assessment and weak link identification of the production design stage can improve accuracy, objectivity and pertinence of maintainability assessment, and has the advantage of being capable of identifying the weak link of the product maintainability design.

Description

technical field [0001] The invention belongs to the technical field of maintainability evaluation, and relates to a maintainability evaluation and weak link identification method in the product design stage, which can be used to identify weak links in maintainability design, constrain and guide product maintainability improvement design. Background technique [0002] Maintainability is an inherent quality characteristic that characterizes the ease, speed and economy of product maintenance. By improving product maintainability, product inspection and maintenance can be facilitated, and maintenance man-hours and costs can be reduced. Maintainability is designed, and maintainability-related work in the design and development stage basically determines the level of equipment maintainability. [0003] Maintainability analysis and evaluation work is the basis of maintainability improvement design and design decision-making. The level of maintainability analysis and evaluation dire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 杨拥民葛哲学罗旭官凤娇陆智淼陈健董孟高胡政杨定新
Owner NAT UNIV OF DEFENSE TECH
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