Fault mode subduction closure method based on logic decision

A failure mode and logical decision technology, applied in the root cause field, can solve the problems of weak correlation and superficiality of RMS design analysis work

Active Publication Date: 2012-09-12
北京可维创业科技有限公司
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Problems solved by technology

However, at the present stage, in the complex product design process of enterprise units, designers mainly focus on completing specified work items. There is always a lack of a core between RMS design and analysis work, and the internal correlation between RMS design and analysis work is weak. As a result, the RMS design and analysis work is superficial, and it is difficult to give full play to the role of RMS design and analysis technology in the design process

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  • Fault mode subduction closure method based on logic decision
  • Fault mode subduction closure method based on logic decision
  • Fault mode subduction closure method based on logic decision

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Embodiment Construction

[0130] The failure mode is the link between the RMS characteristics of the product. In the process of product design, the designer can reduce the potential failure modes of the product one by one based on the failure mode reduction closure method based on logic decision provided by the present invention according to different analysis objects in different development stages, and carry out related RMS design work at the same time.

[0131] See figure 1 , the present invention is based on a logical decision-based failure mode reduction closure method, and its specific steps are as follows:

[0132] Step 1: Carry out FMECA analysis

[0133] According to the current technical status of the product, select the appropriate failure mode impact and hazard analysis method, formulate the corresponding analysis form (for example, Table 3 gives an example of the hardware FMECA analysis table), and complete the failure mode impact and hazard analysis of the analysis object. And further c...

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Abstract

A failure mode subduction closure method based on a logic decision comprises four steps: step 1. Developing a FMECA analysis and classifying a result according to a certain standard; step 2. Taking a classified fault mode set as an object, calculating an influence of the fault mode subduction on an RMS index, calculating and determining an optimal fault mode subduction scheme based on a rough set theory; step 3. Implementing the fault mode subduction; step 4. Implementing validity verification. By using the method of the invention, design personnel takes the fault mode as a center, systematically considers a relation between a qualitative design and quantification index realization, simultaneously monitors each related reliability, maintainability, guarantee, testability and a security design condition and solves defects and insufficiencies one by one in the design so as to rapidly and effectively realize an RMS index requirement, shorten a development period and reduce development cost.

Description

technical field [0001] The present invention relates to the design process of complex product reliability, maintainability, guarantee, testability, safety (hereinafter referred to as RMS), especially within a limited development period and limited development funds, a failure mode reduction closure method based on logical decision can be Instruct designers to quickly, orderly, and efficiently target the root cause of the problem, and take effective measures to improve in a planned and step-by-step manner, thereby improving the RMS level of complex products. The invention belongs to the technical field of reliability engineering. Background technique [0002] RMS is an important factor affecting the performance and maintenance of complex products. Therefore, in the RMS design of complex products, designers should follow the relevant RMS design guidelines and design standards to carry out RMS work items, and find potential failure modes through continuous analysis, and then ta...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06
Inventor 杨德真任羿王自力刘林林
Owner 北京可维创业科技有限公司
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