System acceleration verification test method based on fuzzy analytic hierarchy process

A fuzzy level and verification test technology, applied in reliability/availability analysis, instrumentation, electrical digital data processing, etc., can solve the problems of long test time, short cycle and low cost requirements, large test sample size, etc.

Active Publication Date: 2020-11-17
TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The existing RADT design theories and methods are gradually being enriched and improved, but generally have the problems of large sample size and long test time for re

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  • System acceleration verification test method based on fuzzy analytic hierarchy process
  • System acceleration verification test method based on fuzzy analytic hierarchy process
  • System acceleration verification test method based on fuzzy analytic hierarchy process

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[0088] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It will be appreciated that the specific embodiments described herein are intended to explain the invention and is not intended to limit the invention.

[0089] Based on the traditional reliability verification test large sample statistical methods, test long time, is now difficult to meet the high reliability and long life of electronic product development of short cycle and low cost requirements. The present invention is a "physical fault STATISTICS +" method, a system for multi-item multi-stress accelerated failure verification test methods. Based on the idea of ​​reliability index allocated by environmental stress, from the function, structure, mechanism, stress levels to determine the four key features, weaknesses, the main failure mode...

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Abstract

The invention provides a system acceleration verification test method based on a fuzzy analytic hierarchy process. The method comprises the following steps: adopting the fuzzy analytic hierarchy process to decompose a to-be-verified system task reliability total index R from top to bottom according to four levels of function, structure, mechanism and stress, and determining the relationship between the total index R and each stress; distributing the weight of the total index R according to the stress type; obtaining the reliability of the total index R distributed according to the stress type;and determining an acceleration test profile, counting a test scheme and a total acceleration factor, and carrying out environment tests of different stress types on the system. The system acceleration verification test method based on the fuzzy analytic hierarchy process has the advantages that a mathematical statistics and fault physics method is adopted, the problem of complex system reliability index verification is solved through an environment test easy to carry out, the test time is short, the cost is low, the sample size is small, a test design method is provided, and the test efficiency is improved. Therefore, a test scheme can be quickly determined, and system reliability indexes are verified.

Description

Technical field [0001] The present invention belongs to the technical field demonstration test system acceleration, particularly to a system based on FAHP accelerated verification test methods. Background technique [0002] Reliability test (Reliability demonstration test, RDT) by methods of mathematical statistics validation failure rate, MTBF (mean time to failure, MTBF) and other life, reliability parameters are required, it is designed to allow the ordering party can get qualified products, while also understand Cheng Zhifang product life and reliability, the general condition of the true stress, the test time depends mainly on the level of reliability and statistical tests to be authenticated program selected in GJB899A-2009 "reliability Qualification and acceptance tests" are given in a variety of statistical tests to verify the reliability of the test program. In most aerospace and other engineering applications, system-level products typically adopt one by one single typi...

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Application Information

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IPC IPC(8): G06F11/00G06F30/27G06F119/02G06F119/14
CPCG06F11/008G06F30/27G06F2119/02G06F2119/14Y02P90/30
Inventor 李鹏李桃秦泰春吕从民
Owner TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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