Gear pump health state evaluation method based on profust reliability theory

A health status, gear pump technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as limitations in the field of hydraulic pump health management

Active Publication Date: 2015-02-18
中国人民解放军防化学院
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  • Abstract
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AI Technical Summary

Problems solved by technology

This has caused the limitations of the application of rate-mode reliability theory in the field of hydraulic pump health management.

Method used

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  • Gear pump health state evaluation method based on profust reliability theory
  • Gear pump health state evaluation method based on profust reliability theory
  • Gear pump health state evaluation method based on profust reliability theory

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Embodiment Construction

[0059] The present invention is a method for assessing the health state of gear pumps based on the theory of rate-mode reliability. The design objectives include three aspects: first, to obtain the evaluation index of the gear pump; second, to obtain the health degree of the gear pump; third, to obtain the current Health rating for gear pumps.

[0060] The data of the present invention comes from the gear pump test bench. The CB-B10 gear pump works continuously on the test bench. The working speed of the gear pump is obtained through the speed sensor, the output pressure value of the gear pump is obtained by the pressure sensor, and the instantaneous output flow value is obtained by the flow sensor. The data simulation process is carried out in the Matlab 2010a environment on a computer with a CPU frequency of 2.93GHz and a memory of 3.00GB. In the specific implementation, the state transition probability matrix and state probability of the gear pump index are obtained by mean...

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Abstract

The invention discloses a gear pump health state evaluation method based on a profust reliability theory. The gear pump health state evaluation method comprises the following seven steps: I, designing selection of gear pump health state evaluation indexes; II, designing classification of gear pump health state grades; III, designing establishment of gear pump evaluation index subordinating degree functions; IV, designing calculation of gear pump evaluation index states and state transition probability; V, designing calculation of gear pump evaluation index profust reliability; VI, designing a profust reliability calculation method of the gear pump health state evaluation; and VII, designing gear pump health state grades and countermeasures. According to the invention, a theoretic basis for health state evaluation according to gear pump operation parameters is made up, the novel gear pump health state evaluation method is provided, and support is provided to health management of hydraulic pumps.

Description

technical field [0001] The invention relates to a method for evaluating the health state of a gear pump based on a profust reliability theory, which is related to the evaluation of the running state of the gear pump and belongs to the technical field of hydraulic pump health management. Background technique [0002] Gear pump is a kind of hydraulic pump, which is widely used in various hydraulic systems. Gear pumps have many advantages, such as light weight, small size, stable operation, and not easily polluted by hydraulic oil. Therefore, gear pumps are usually used in hydraulic machinery. As the source power of the hydraulic system, the gear pump will lead to the paralysis of the entire hydraulic system once it fails and stops, and the impact is even greater in some systems where the operating object is dangerous goods. Use effective means to analyze the health status of the gear pump, and refine the operating status before failure occurs. The evaluation of the health s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 张宏远郝爱智刘桐刘学程吴明飞王颖辉梁延松晏国辉毕坤鹏顾进
Owner 中国人民解放军防化学院
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