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Historical information-based health state assessment method for solid rocket engine

A technology of health status and historical information, applied in the direction of instruments, data processing applications, resources, etc., can solve problems such as increased failure rate

Inactive Publication Date: 2016-08-17
NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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AI Technical Summary

Problems solved by technology

Since the solid rocket motor has the characteristics of "long-term storage and one-time use", it has to repeatedly experience different mission profiles such as transportation, storage, and testing during its entire life cycle, which will have a certain impact on the health status. At the same time, as the storage time increases, Various equipment (components) of solid rocket motors begin to deteriorate, such as the aging of elastic materials and electronic components, which lead to an increase in failure rate

Method used

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  • Historical information-based health state assessment method for solid rocket engine
  • Historical information-based health state assessment method for solid rocket engine
  • Historical information-based health state assessment method for solid rocket engine

Examples

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Embodiment Construction

[0021] The following examples are given to describe the present invention in detail.

[0022] Such as figure 1 As shown, the process flow of the solid rocket motor health status assessment method based on historical information is as follows:

[0023] 1. Classification of health status

[0024] In order to better describe the health status of solid rocket motors, the health status of solid rocket motors is divided into five grades: good, normal, attention, deterioration and sickness.

[0025] 2. Historical information indicators and weights

[0026] The historical information of the solid rocket motor is: the storage time is 180 days, the railway transportation is 2500km, the road transportation is 200km, 0 similar failures, and 0 historical failures. According to the weights of the four historical information indicators of task profile, storage time, similar faults, and historical faults scored by experts, the comprehensive extension judgment matrix of historical informati...

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Abstract

The invention provides a method for evaluating the health state of solid rocket motors based on historical information, specifically: dividing the health state level of solid rocket motors; historical information indicators and weights; scoring historical information indicators by experts; determining whitening weight functions; calculating clustering The decision coefficient of the object belonging to the k gray level determines the health status.

Description

technical field [0001] The invention relates to a method for evaluating the health state of a solid rocket motor based on historical information, and belongs to the technical field of health state evaluation. Background technique [0002] Historical information mainly includes the solid rocket motor's own information (factory time, theoretical life, etc.), historical records of failures, maintenance records, failures of similar equipment, storage time, and mission profiles experienced. Since the solid rocket motor has the characteristics of "long-term storage and one-time use", it has to repeatedly experience different mission profiles such as transportation, storage, and testing during its entire life cycle, which will have a certain impact on the health status. At the same time, as the storage time increases, The various equipment (components) of solid rocket motors begin to deteriorate, such as the aging of elastic materials and electronic components, which leads to an in...

Claims

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Application Information

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IPC IPC(8): G06Q10/06
CPCG06Q10/06393
Inventor 赵汝岩于亮王丽婷周源
Owner NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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