System and method for rotor system on-line health monitoring

Abstract

Provided are a system and a method for rotor system on-line health monitoring. The system comprise a parameter design system, a signal generation-amplifier, a signal transmitter, a signal exciter, a signal sensor, a signal collector and a health condition decision-making system. Design of excitation signals is achieved by the parameter design system by means of parameters of a rotor system, the excitation signals are generated through the signal generation-amplifier and pass through the signal transmitter, and electric signals are converted to ultrasonic guided-wave excitation through the signal exciter. Ultrasonic guided-waves reflected by rotor cracks or edges are collected to be electrical signals through the signal sensor and are transmitted to the signal collector through the signal transmitter. The signal collector achieves filtering and other processes for collected signals and then sends the signals to the health condition decision-making system, and digital signal processing and judging of the health condition of a rotor according to characteristics of the digital signals are achieved through the decision-making system. According to the system and the method, the health condition of the rotor under the condition of on-line operation of the rotor is monitored, safety of rotor system operation is improved, and economical loss caused by shut-down is reduced.

Description

technical field [0001] The invention relates to the field of equipment health monitoring, in particular to an online flaw detection system and method for a rotor system based on ultrasonic guided waves. Background technique [0002] With the gradual increase of social demand, the trend of large-scale and high-power industrial equipment is becoming more and more obvious. The launch of various large-scale moving equipment makes the health status of the rotor system, the core component of the moving equipment, the key to determining the working condition of the moving equipment. In order to reduce energy consumption and cost control of large-scale high-power equipment, it is necessary to use certain means to monitor the online health of the rotor system in operation, and to repair or replace it in a planned way according to its health status. This greatly reduces the waste of energy consumption caused by abnormal working conditions and the economic losses and even personal inju...

AI Technical Summary

Problems solved by technology

For the rotor in large and high-power equipment, a system that needs to be in working condition for a long time, even regular shutdown detection will cause a large degree of economic loss

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