Electro-hydraulic servo mechanism health assessment method and system based on test data

A technology for health assessment and test data, which is applied in fluid pressure actuation system testing, mechanical equipment, fluid pressure actuation devices, etc., and can solve problems such as unfavorable grasp of the dynamic development state of servo

Pending Publication Date: 2021-09-17
中国人民解放军火箭军工程大学
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Problems solved by technology

[0005] The embodiment of the present application provides a method and system for health assessment of electro-hydraulic servo mechanisms based on test data, which solves the problem that the evaluation of electro-hydraulic servo mechanisms in the prior art is staged and the evaluation results are right and wrong, which is not conducive to mastering the servo mechanism Technical issues in a dynamic state of development

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  • Electro-hydraulic servo mechanism health assessment method and system based on test data
  • Electro-hydraulic servo mechanism health assessment method and system based on test data
  • Electro-hydraulic servo mechanism health assessment method and system based on test data

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Embodiment 1

[0029] Such as figure 1 As shown, the embodiment of the present application provides a method for evaluating the health of an electro-hydraulic servo mechanism based on test data, the method comprising:

[0030] Step S100: Obtain a test data set, the test data set corresponds to the first time requirement, and the test data set includes the first parameter test data, the second parameter test data, up to the Nth parameter test data, where N is positive integer;

[0031] Specifically, the test data set is a collection of historical test data within a certain period of time, including the corresponding measurement parameters. The test data set has a unified test parameter standard, that is, the requirements of parameter testing are unified, which is convenient for evaluation and analysis . The first time requirement is usually the most recent one or several test data. The closer the time is to the current time, the closer the state of the electro-hydraulic servo is to the actu...

Embodiment 2

[0054] Based on the same inventive idea as the method for evaluating the health of an electro-hydraulic servo mechanism based on test data in the foregoing embodiments, the present invention also provides a system for evaluating the health of an electro-hydraulic servo mechanism based on test data, such as figure 2 As shown, the system includes:

[0055] A first obtaining unit 11, the first obtaining unit 11 is used to obtain a test data set, the test data set corresponds to the first time requirement, and the test data set includes the first parameter test data and the second parameter test data , until the Nth parameter test data, wherein, N is a positive integer;

[0056] The second obtaining unit 12, the second obtaining unit 12 is used to obtain preset health evaluation rules, the preset health evaluation rules include N evaluation rules, and the N evaluation rules are related to the N parameter test data correspond;

[0057] A third obtaining unit 13, the third obtain...

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Abstract

The invention discloses an electro-hydraulic servo mechanism health assessment method and system based on test data. The method comprises the steps of obtaining a test data set which corresponds to a first time requirement; performing normalization quantization processing on all data in the test data set to obtain a second test set; obtaining parameter correction information according to all parameter information in the test data set; correcting all data in the second test set based on the parameter correction information to obtain a third test set; constructing a health evaluation model; inputting test data in the third test set and the predicted health evaluation rule into the health evaluation model to obtain a parameter evaluation set; and obtaining a health state evaluation result according to the parameter evaluation set. The technical problems that in the prior art, evaluation of the electro-hydraulic servo mechanism is phased, the evaluation result is non-type, and the dynamic development state of the servo mechanism cannot be mastered easily are solved.

Description

technical field [0001] The invention relates to the technical field related to automatic control, in particular to a method and system for evaluating the health of an electro-hydraulic servo mechanism based on test data. Background technique [0002] Electro-hydraulic servo technology is a comprehensive technology integrating mechanical, hydraulic and automatic control. Electro-hydraulic servo mechanism is an important control equipment in the field of automation, and is widely used in the field of industrial control with high control precision and high output power. As a medium for power transmission and control, liquid has many inconveniences and is more expensive than electricity, but it has the characteristics of fast response speed, large power-to-mass ratio, and high load-resistant rigidity. Therefore, the electro-hydraulic servo system It has unique advantages in the field of control requiring high control precision and large output power. The electro-hydraulic servo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00
CPCF15B19/00
Inventor 徐中英岳瑞华孔祥玉何华锋赵沙乐郑建飞张琪
Owner 中国人民解放军火箭军工程大学
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