System maintenance time distribution method based on operation decomposition

A technology of maintenance time and distribution method, applied in the direction of instruments, etc., can solve problems such as unreasonable distribution of complex products, achieve the effect of reasonable maintenance distribution work, and improve applicability and reliability

Inactive Publication Date: 2011-08-10
BEIHANG UNIV
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Problems solved by technology

[0005] (1) The purpose of the present invention is to provide a system maintenance time allocation method based on job decomposition, mainly based on the maintainability characteristics of complex equipment systems, improve the existing allocation method, and improve the maintainability of the allocation method in complex product allocation The applicability and accuracy of the system solve the problem of unreasonable distribution of complex products in the maintenance distribution method of the system

Method used

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  • System maintenance time distribution method based on operation decomposition
  • System maintenance time distribution method based on operation decomposition
  • System maintenance time distribution method based on operation decomposition

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Embodiment

[0136] This embodiment takes a Z system as an example. The main functions of the system are flight control, display control management, mission data loading and recording. It includes three subsystems: flight control system, display control system and mission computer. And the display and control sub-system includes 10 LRUs: management control computer 1, management control computer 2, multi-function display, central multi-function display, head-up display, avionics system start board, upper and front control board, integrated control board, lower display low voltage Power supply and low-voltage power supply The MTTR of the system, the failure rate and design characteristics of the three sub-systems and 10 LRUs are now known. It is required to use the maintenance allocation method based on the job decomposition system to determine the time index of the middle LRU of the display control sub-system.

[0137] This system fully considers maintainability when designing the scheme, a...

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Abstract

The invention relates to a system maintenance time distribution method based on operation decomposition, which comprises the following steps: 1. analyzing tasks, the step of analyzing the tasks comprises distribution request analysis, distribution object analysis, maintenance activity and influence factor analysis, wherein the distribution object analysis is mainly used for determining distributive system levels, functions and structural levels of all components of a device, and a product decomposed into the needed level by the system, namely, a replaceable unit, and mapping systemic functions and structural level diagrams; and the number of the levels is determined by complexity level of the device; 2. obtaining data, obtaining existing data of a distribution object required to be analyzed, namely, data of a similar product, fault frequency data, reachability data, testability data and the like; 3. selecting a distribution method, selecting high-level distribution or low-level distribution according to the stage of product design and the product level; 4. distributing indexes, distributing maintainability indexes of the given product to product units at all levels according to the selected method; 5. analyzing a result, judging whether a distribution result is in line with requirements and is feasible.

Description

Technical field [0001] The present invention provides a system maintenance time allocation method based on job decomposition. Specifically, it is a method applied to improve product maintenance performance to achieve the goal of improving system efficiency and reducing life cycle costs. It belongs to system engineering The technical field of product maintainability distribution and prediction in the system. Background technique [0002] Maintainability is the ability of a product to maintain or restore its specified state when it is maintained or restored under specified conditions and within a specified period of time, according to specified procedures and methods. Improving the maintainability of products can achieve the goal of improving system efficiency and reducing life cycle costs. [0003] Maintainability design and analysis is to design maintainability into products, and it is the core and key to achieve maintainability requirements. Maintainability allocation and mainta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/00
Inventor 吕川周栋王晶红王美慧郭志奇霍琳李莎耿杰
Owner BEIHANG UNIV
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