Newly-developed aviation electronic product hardware comprehensive FMECA method

Abstract

A newly-developed aviation electronic product hardware comprehensive FMECA method comprises the first step of defining a system to be analyzed, the second step of determining fault modes and reasons of appointed layers of a product based on a fault information database, fault mechanism analyzing and a fault module exposure test method, the third step of acquiring fault effects based on a fault simulation analytical method, the fourth step of carrying out the quantification hazard analysis, taking the multiple fault effects caused by the redundancy design into consideration and providing a quantification hazard analyzing method based on the multiple fault effects, and the fifth step of filling in an FMECA table and filling the fault modes, the reasons, the effect and the hazard degree all of which are acquired through analyzing into the FMECA table. The newly-developed aviation electronic product hardware comprehensive FMECA method is a hardware FMECA method based on the fault information database, fault mechanism analyzing, fault mode exposure testing, fault simulating and analyzing and the multiple fault effects, and is capable of providing more objective quantification for design and analyze workers and providing a basis for the design improvement on electronic products.

Description

technical field [0001] The present invention provides a comprehensive failure mode, effect and criticality analysis (Failure Mode, Effects and Criticality Analysis, FMECA) method for avionics products newly developed (hereinafter referred to as Xinyan), especially relates to a method based on comprehensive failure The newly developed FMECA method for electronic product hardware of information database, failure mechanism analysis, failure simulation analysis, failure mode exposure test and risk analysis belongs to the field of reliability analysis technology. Background technique [0002] With the rapid development of technology, the complexity of avionics products continues to increase, and the requirements for their reliability are also getting higher and higher. Avionics products are generally composed of a chassis and an integrated circuit board. The integrated circuit board is fixed in the chassis through card slots, connectors, locking bars, etc., and various chassis ar...

AI Technical Summary

Problems solved by technology

The hardware comprehensive FMECA method of Xinyan avionics products is the supplement and assistance of the hardware FMECA method. Through the novelty search and retrieval of existing technologies, there is no fault information database, failure mechanism analysis, and failure mode for Xinyan electronic products at home and abroad. Research and application reports on hardware FMECA methods such as exposure test, fault simulation analysis and considering the impact of multiple faults

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