Roll-control electronic module storage reliability assessment method integrating process and reliability block diagram

Abstract

The invention discloses a roll-control electronic module storage reliability assessment method integrating a process and a reliability block diagram. The method comprises the steps that firstly, a roll-control electronic module function simulation model is established, a sensitivity analyzing method is utilized to determine bottom-layer key components and devices affecting output characteristics of a roll-control electronic module by combining with investigation results of manufacturers; secondly, initial distribution of output characteristic parameters is analyzed by combining with a failuremode and a failure mechanism, storage of degeneration test measured data is promoted, and storage degeneration data of the bottom-layer key components and devices having distribution characteristics is obtained; finally, by combining with a failure threshold value and the established roll-control electronic module storage reliability block diagram, the roll-control electronic module storage reliability is obtained. The problem is solved that the accuracy of roll-control electronic module storage reliability assessment is low under the small sub-sample problem, and a new thought is provided forroll-control electronic module storage reliability assessment.

Description

technical field [0001] The invention belongs to the technical field of product performance analysis of rolling control electronic modules, and relates to a storage reliability evaluation method of rolling control electronic modules, in particular to a storage reliability evaluation method of rolling control electronic modules combined with a process and a reliability block diagram. Background technique [0002] For some products (missiles, launch vehicles, and space shuttles), they are mainly in storage during their entire life cycle, that is, they have the characteristics of "long-term storage and one-time use". Due to the long-term impact of storage environment stress such as temperature, humidity, vibration, salt spray, etc., the output characteristics of the above products will degrade. When the threshold value specified by the functional index is exceeded, the product will fail, and continued use will cause inestimable losses. . At the same time, the above-mentioned si...

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Problems solved by technology

[0004] In order to solve the problem of small samples in the process of evaluating the storage reliability of the rolling control electronic module, it is impossible to accurately reflect the dispersion characteristics of the degradation process of the rolling control electronic module due to the manufacturing process, so that the storage reliability of the rolling control electronic module cannot be accurately evaluated. The invention provides a method for evaluating the storage reliability of a rolling control electronic module combined with a process and a reliability block diagram

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