Complex product failure effect transfer relation model as well as analysis and evaluation method thereof

Abstract

The invention provides a complex product failure effect transfer relation model as well as an analysis and evaluation method thereof. The analysis and evaluation method comprises three major steps of 1) establishing a product configuration view, namely defining and dividing the data layers of a product, establishing the configuration view of the product to form a tree structure mode of the product and displaying the relation of subordination between the nodes of the product, 2) defining failure information and an effect transfer relation thereof and graphically displaying the failure effect transfer relation, namely defining the failure mode, the failure mode severity and the failure mode harm of each product node and the failure effect transfer relation between different nodes of the product and graphically displaying the failure information of the product to form a failure effect transfer relation graph between different product nodes, and 3) analyzing and evaluating the effect transfer relation between failures. After the failure effect transfer relation graph is formed, the failure effect transfer relation is evaluated by use of a graphic model and a mathematic model to find out critical product node and failure mode, and then the found critical product node and failure mode are concerned.

Description

technical field [0001] The invention relates to a complex product failure impact transmission relationship model and its analysis and evaluation method, which is suitable for applying computer visualization analysis and evaluation methods for failure impact transmission relationship, and belongs to the technical field of computer aided design. Background technique [0002] With the development of information technology, product design methods have gradually shifted from document-based design patterns to model-based design methods. The functional performance requirements and design results of products are represented by corresponding models at a specific moment in the design process. The product design process itself can be seen as a model evolution process that evolves over time. [0003] Reliability, as one of the important characteristics of a product, must be designed and optimized simultaneously with functional performance. In the process of complex product reliability ...

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Problems solved by technology

[0005] The object of the present invention is to propose a visualization-based analysis method of fault influence transmission relationship, and provide a corresponding evaluation model, to provide an analysis method for forming a fault influence transmission relationship network for the reliability analysis process, aiming to solve the problem of large and complex The product system has complex cross-linking relationships, a large number of faults, complex impact transmission relationships, and many branches. An accurate and effective transmission relationship network is given, so that designers can quickly find design weak links based on analysis results, and implement improvements to improve product reliability. sex level

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