Method for evaluating use reliability of airborne electromechanical equipment

An electromechanical equipment and reliability technology, applied in computer-aided design, design optimization/simulation, electrical digital data processing, etc., can solve the problems of conservative reliability and inaccurate reliability analysis results.

Active Publication Date: 2020-10-23
中国人民解放军海军航空大学青岛校区
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Problems solved by technology

At the same time, the current reliability synthesis method often simplifies the system into a series model based on the reliability logic method, but the traditional reliability mathematical model of the series system has the disadvantage of being conservative when calculating the reliability of the system, resulting in inaccurate reliability analysis results

Method used

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  • Method for evaluating use reliability of airborne electromechanical equipment
  • Method for evaluating use reliability of airborne electromechanical equipment
  • Method for evaluating use reliability of airborne electromechanical equipment

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Embodiment Construction

[0045] A method for evaluating the reliability of airborne electromechanical equipment, including a method for evaluating the reliability of airborne electromechanical equipment, characterized in that it includes the following steps:

[0046] S1: Establish a target device sample set.

[0047] Specific steps are as follows:

[0048] s1.1: Statize the fault data of the target equipment and build a fault sample database X={x 1 ,...,x M}, M is the number of fault samples;

[0049] s1.2: Analyze the failure mode of the failure data in the failure sample database and classify the failure data to form a mechanical sample database X 1 and electronic sample database X 2 ;Specifically:

[0050] s1.2.1: Statize the failure data of mechanical parts in the target equipment, and build a mechanical sample database m 1 is the number of mechanical samples;

[0051] s1.2.2: Statize the failure data of electronic components in the target equipment, and build an electronic sample databas...

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Abstract

The invention discloses a method for evaluating the use reliability of airborne electromechanical equipment. The method comprises the steps: analyzing a fault mode of a specific product; counting fault data of the mechanical and electronic parts according to the fault mode; further fitting a product life distribution model; estimating distribution model parameters, respectively calculating fault weights of mechanical and electronic components of the system, then constructing a hybrid distribution model of the system, finally drawing the system reliability curve of target equipment, accuratelyreflecting the reliability level of parts, searching weak links of the system, accurately reflecting the overall reliability level of the system, and providing a basis for reducing the risk rate of the system, designing a preventive maintenance cycle and optimizing the maintenance cost.

Description

technical field [0001] The invention relates to the technical field of reliability engineering, in particular to a reliability evaluation method for airborne electromechanical equipment. Background technique [0002] Supplemented by the harsh environment, airborne electromechanical products are vulnerable to the comprehensive effects of various environmental stresses such as high temperature, high humidity, and acid gas, and various mechanical stresses such as vibration and impact, and their failure behaviors are relatively complicated. In the design, development and production stages, subject to various constraints such as cost, environment, and test and calculation methods, the reliability prediction and appraisal of airborne products cannot fully reflect the reliability level of the product in the real environment. The reliability of the product after it is put into use has caused a huge hidden danger. [0003] At present, when evaluating the reliability of airborne elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/00G06F119/02G06F119/12
CPCG06F30/20G06Q10/20G06F2119/02G06F2119/12
Inventor 李军亮陈跃良张勇樊伟杰张柱柱
Owner 中国人民解放军海军航空大学青岛校区
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