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Residual life prediction method and system for two-stage degradation equipment

A life prediction and stage technology, applied in computer aided design, design optimization/simulation, special data processing applications, etc., can solve the problems of incremental change of degradation trajectory, nonlinearity, etc., and achieve the effect of improving prediction accuracy

Pending Publication Date: 2021-11-16
ROCKET FORCE UNIV OF ENG
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in an actual system, its degradation trajectory will be affected by various operating factors, causing the increment of the degradation trajectory to change, which has nonlinear characteristics

Method used

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  • Residual life prediction method and system for two-stage degradation equipment
  • Residual life prediction method and system for two-stage degradation equipment
  • Residual life prediction method and system for two-stage degradation equipment

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] The object of the present invention is to provide a method and system for predicting the remaining life of two-stage degraded equipment, which can improve the prediction accuracy of the remaining life.

[0052] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0...

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Abstract

The invention relates to a residual life prediction method and system for two-stage degradation equipment. The method comprises the following steps: acquiring degradation track data of to-be-predicted equipment; establishing a two-stage degradation model according to the degradation track data of the to-be-predicted equipment; identifying parameters of the two-stage degradation model by adopting a maximum likelihood method according to the two-stage degradation model and the degradation track data of the to-be-predicted equipment; and predicting the residual life of the to-be-predicted equipment according to the two-stage degradation model after parameter identification. The residual life prediction precision can be improved.

Description

technical field [0001] The invention relates to the field of reliability engineering analysis, in particular to a method and system for predicting the remaining life of two-stage degraded equipment. Background technique [0002] With the continuous improvement of the scientific level, while the functions of many devices are constantly improving, their internal mechanisms are becoming more and more complex. Accurately predicting the running time and service life of such equipment can reduce economic losses and reduce the risk of accidents. In recent years, the method of predicting the remaining life of equipment based on degradation data has received extensive attention and considerable development from all walks of life. The core problem of this method is to collect data with a degradation trend in the device through sensors, and use various data analysis techniques to predict the remaining life of the device, which can effectively avoid problems such as difficulty in build...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F111/10G06F119/02G06F119/04
CPCG06F30/20G06F2119/02G06F2119/04G06F2111/10
Inventor 胡昌华幸元兴张建勋杜党波司小胜李天梅
Owner ROCKET FORCE UNIV OF ENG