Evaluation method of reliability of aerospace electronic product

An electronic product and reliability technology, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of insufficient product correlation, inability to carry out, test cost and time waste, etc. Improve reliability, improve life and reliability, and describe the effect of accurate reliability
CN106529090AInactive Publication Date: 2017-03-22CHINA AEROSPACE STANDARDIZATION INST
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA AEROSPACE STANDARDIZATION INST
Publication Date
2017-03-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an evaluation method of reliability of an aerospace electronic product based on a failure mechanism. On the basis that an analysis method with a combination of physical simulation and a test is adopted, a physical simulation model of the electronic product is constructed, the means such as sensitivity analysis, Monte Carlo analysis, and stress analysis are adopted, and product key elements are identified and in combination with actual working conditions of the elements, a failure mechanism analysis is conducted. Currently, the failure mechanism analysis aiming at the elements is a means used for analyzing a failure reason after a failure occurs during the test or in the using process of the electronic product, thus pertinent improvement is conducted on the product, the service life of the product is prolonged, and the reliability of the product is improved; the failure mechanism analysis aims at finding key characteristic parameters which affect the service life and the reliability of weak elements as an independent variable of the reliability model.
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Description

technical field

[0001] The invention belongs to the technical field of reliability analysis and evaluation of aerospace electronic products, and in particular relates to a reliability evaluation method of aerospace electronic products based on failure mechanism. Background technique

[0002] Electronic products are widely used in space and rocket products, such as stand-alone products such as power amplifiers, computers, distributors, and FM transmitters in launch vehicles; stand-alone products such as computers, circuit boxes, drivers, and temperature controllers in satellites All are electronic products. Most of these electronic products are composed of printed circuit boards (PCBs), and circuit boards are composed of different types of components, such as resistors and capacitors.

[0003] Reliability, as an index that indirectly expresses the product's work and task completion ability, cannot be directly measured in the test. It needs to be obtained through the analysis...

Claims

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