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Feature extraction method of hydraulic reciprocating seal damage state

A feature extraction, state technology, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve problems such as inability to monitor timely and accurately

Active Publication Date: 2016-11-09
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a feature extraction method for the damage state of hydraulic reciprocating seals for the defects that cannot be monitored timely and accurately in the prior art

Method used

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  • Feature extraction method of hydraulic reciprocating seal damage state
  • Feature extraction method of hydraulic reciprocating seal damage state
  • Feature extraction method of hydraulic reciprocating seal damage state

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] A feature extraction method for the damage state of a hydraulic reciprocating seal, specifically as follows:

[0052] 1. Sensor arrangement:

[0053] Fiber Bragg grating strain and temperature sensors are arranged in the sealing groove of the sealing ring at the piston. For details, see figure 1 ; The two chambers of the hydraulic cylinder are respectively arranged with fluid pressure sensors, and the piston rod is arranged with displacement sensors. figure 2 ;

[0054] FBG strain and temperature sensor arrangement: figure 1 The fiber grating strain sensor shown is laid around the circumference of the piston, an...

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Abstract

The invention discloses a feature extraction method of a hydraulic reciprocating seal damage state. By use of the method which is put forward by the invention, a fiber bragg grating strain sensor, a fluid pressure sensor and the movement placement sensor of an execution component are mainly used for independently collecting the strain signal of a reciprocating seal bottom surface, the pressure signal of a system and the movement signal of the execution component in a working process of the hydraulic execution component, and the extraction of hydraulic reciprocating seal damage state features is realized through the effective fusion of various pieces of sensing information so as to realize the fault prevention and the health management of the system.

Description

technical field [0001] The invention relates to seal damage state monitoring, in particular to a feature extraction method for hydraulic reciprocating seal damage state. Background technique [0002] The hydraulic reciprocating seal is a key component of the hydraulic actuator. Its function is to prevent the leakage of the working medium of the actuator and the intrusion of external impurities, dust, moisture and other pollutants. It is an important guarantee for the safe and efficient operation of the equipment. During the working process of hydraulic actuators, the reciprocating seal will be affected by temperature, medium pressure, friction, and pollutant particles in the oil, which will easily cause aging, damage, twisting, swelling, extrusion, etc. of the seal. occur. Once the hydraulic reciprocating seal is damaged during the use of the equipment, it will not only cause waste of resources, environmental pollution, decrease in production efficiency, fluctuations in pro...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06F2218/06G06F2218/08
Inventor 赵秀栩张栓栓温鹏飞柯伟阳群
Owner WUHAN UNIV OF TECH
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