Turbomachine blade vibration displacement monitoring method and device

A technology of turbo machinery and vibration displacement, applied in measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve problems such as unsatisfactory accuracy of monitoring results, difficult installation, increased costs, etc.

Active Publication Date: 2019-05-28
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual turbomachinery group, it is difficult to install the key phase sensor that obtains the key phase value (such as aeroengines equipped

Method used

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  • Turbomachine blade vibration displacement monitoring method and device
  • Turbomachine blade vibration displacement monitoring method and device
  • Turbomachine blade vibration displacement monitoring method and device

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Embodiment Construction

[0085]In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without ...

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Abstract

The embodiment of the invention provides a turbomachine blade vibration displacement monitoring method and device. The method comprises the steps of obtaining the actual arrival moment of each blade passing through each target position, according to the actual arrival moment of each blade and the ideal uniform-distribution installing angle, obtaining an error arc length corresponding to an error between the ideal uniform-distribution installing angle and the actual installing angle and a theoretical arrival moment of each blade, further obtaining vibration displacement of a reference blade inturbomachine blades, and further achieving calculation and correction of the target vibration displacement of each blade on the basis of vibration displacement of the reference blade. The vibration displacement condition of the turbomachine blades is monitored conveniently, monitoring of the blade vibration displacement condition is easy and efficient, and the accuracy is high.

Description

technical field [0001] The present application relates to the technical field of vibration monitoring of turbomachinery blades, in particular to a method and device for monitoring vibration displacement of turbomachinery blades. Background technique [0002] Turbomachinery is the key equipment for national defense and industrial production, and the blade is the core component of turbomachinery. Its health status is of great significance to the safe, stable and efficient operation of turbomachinery. During the operation of turbomachinery, fatigue fracture failures and accidents caused by blade vibration have a particularly prominent impact on turbomachinery. Therefore, it is necessary to monitor the vibration of the blade, and the purpose of early warning of failure can be achieved by monitoring the vibration displacement of the blade. [0003] For the vibration monitoring of turbomachinery blades, there are mainly two methods: contact measurement and non-contact measurement...

Claims

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Application Information

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IPC IPC(8): G01H17/00G01B21/02
Inventor 王维民陈康张旭龙
Owner BEIJING UNIV OF CHEM TECH
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