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Construction method of life prediction model and life prediction method of converter cabinet components

A technology of life prediction model and converter cabinet, which is applied in the direction of instrumentation, geometric CAD, design optimization/simulation, etc., can solve the problem of inability to design rail vehicle converter cabinet components that meet the preset life span and no reliable life prediction method And other issues

Active Publication Date: 2022-05-20
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that there is no reliable life prediction method for rail vehicle converter cabinet components in the prior art, so it is impossible to design rail vehicle converter cabinet components that meet the preset life

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  • Construction method of life prediction model and life prediction method of converter cabinet components
  • Construction method of life prediction model and life prediction method of converter cabinet components
  • Construction method of life prediction model and life prediction method of converter cabinet components

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Embodiment 1

[0049] In order to solve the above-mentioned technical problems existing in the prior art, an embodiment of the present invention provides a method for constructing a life prediction model of converter cabinet components.

[0050] refer to figure 1 , the method for constructing the life prediction model of the converter cabinet components in this embodiment includes the following steps:

[0051] S110, according to the actual service conditions and actual service status data of the converter cabinet components, identify the failure mode of the converter cabinet components and the failure influencing factors under the failure mode;

[0052] S120, adopting an accelerated test method, designing an orthogonal test according to the failure influencing factors, and obtaining multiple sets of test conditions;

[0053] S130, judging whether there is an accelerated failure critical state consistent with the actual failure critical state in the same failure mode among the plurality of a...

Embodiment 2

[0060] In order to solve the above-mentioned technical problems existing in the prior art, the embodiment of the present invention provides a method for constructing a life prediction model of converter cabinet components based on Embodiment 1, wherein the converter cabinet provided by the embodiment of the present invention The method for constructing the life prediction model of components is improved from step S150 and step S160 in the first embodiment.

[0061] refer to figure 2 The method for constructing the life prediction model of the converter cabinet components provided in this embodiment specifically includes the following steps:

[0062] S210, according to the actual service conditions and actual service status data of the converter cabinet components, identify the failure mode of the converter cabinet components and the failure influencing factors under the failure mode;

[0063] S220, using an accelerated test method, designing an orthogonal test according to t...

Embodiment 3

[0119] In order to solve the above-mentioned technical problems existing in the prior art, an embodiment of the present invention provides a life prediction method for converter cabinet components.

[0120] The life prediction method of converter cabinet components provided by the present invention includes the following steps: using the life prediction model constructed by the life prediction model construction method of converter cabinet components in Embodiment 1 and Embodiment 2, for the converter The actual service life of cabinet components is predicted.

[0121] The actual service life obtained in the embodiment of the present invention is based on the statistics and fitting of the actual service state. At the same time, the research object of the present invention is the converter cabinet in the rail transit industry, and the environment it carries and serves is deeply coupled. The machined material samples or individual parts can reflect the service life of the key co...

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Abstract

The invention discloses a life prediction model construction method, a life prediction method and an optimization design method of a converter cabinet component. The life prediction model construction method includes the following steps: identifying the failure mode and failure effect of the converter cabinet component design an orthogonal test according to the failure influence factor, and obtain multiple sets of test conditions; judge whether the accelerated failure critical state obtained according to each set of test conditions is consistent with the actual failure critical state; take the test conditions consistent with the actual failure critical state as the accelerated failure critical state Test conditions; build a life prediction model of the converter cabinet components under the failure mode according to the accelerated test conditions. The invention can predict the actual service life of the components of the converter cabinet under each failure mode, so as to comprehensively evaluate the actual service life of the converter cabinet through an engineering test method.

Description

technical field [0001] The invention belongs to the technical field of converter cabinet design, and in particular relates to a method for constructing a life prediction model of converter cabinet components, a method for life prediction of converter cabinet components, and an optimal design method for converter cabinet components . Background technique [0002] With the rapid development of the rail transit industry, the service reliability requirements of rail vehicles are getting higher and higher. Therefore, the service life of key components of rail vehicles has attracted more and more attention. As the core traction power supply equipment of rail vehicles, box-type equipment such as converters have extremely high reliability requirements. The electrical components are sealed by the cabinet and isolated from the external environment; the cabinet and the load-bearing components connected to the car body are directly in contact with the environment. , the service process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/15G06F119/02G06F119/04
Inventor 吴书舟贺冠强刘永江曾祥浩尹邦文周斌尹良兴王佳丽陈俊李榆银何艳飞彭宣霖
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD