Shaft Vibration Monitoring System for Rotating Machinery

2016 ◽  
Author(s):  
Zhang Guanglin ◽  
Qi Qian ◽  
Yu Zhihao
Keyword(s):  
Monitoring System ◽  
Rotating Machinery ◽  
Vibration Monitoring ◽  
Shaft Vibration

Vibration Monitoring System Integrity Subtly Affects Vibration Symptoms and Impacts Machinery Malfunction Diagnosis

2008 ◽  
Author(s):  
Ned M. Endres
Keyword(s):  
Gas Turbine ◽  
Monitoring System ◽  
Rotating Machinery ◽  
Accurate Diagnosis ◽  
Vibration Monitoring ◽  
System Component ◽  
System Integrity ◽  
System Components ◽  
Corrective Actions ◽  
Malfunction Diagnosis

Proper installation and functionality of a rotating machinery protection and monitoring system is essential for accurate diagnosis of machinery related malfunctions. For some gas turbine driven generator units, some monitoring system components can be internal to the machine and somewhat inaccessible. Monitoring system component problems and failures can result in obvious symptoms; however in a few instances these symptoms can be subtle and lead to a false or inappropriate malfunction diagnosis. These false diagnoses can result in unnecessary corrective actions in instances that required only simple “fixes”. Proper installation and functionality of a rotating machinery protection and monitoring system is essential for accurate diagnosis of machinery related malfunctions. For some gas turbine driven generator units, some monitoring system components can be internal to the machine and somewhat inaccessible. Monitoring system component problems and failures can result in obvious symptoms; however in a few instances these symptoms can be subtle and lead to a false or inappropriate malfunction diagnosis. These false diagnoses can result in unnecessary corrective actions in instances that required only simple “fixes”. This paper will discuss a recent case history involving chronic excessive vibration alarms and trips at a customer’s facility. Acquired vibration readings will be discussed. These measurements will illustrate the effects of subtle monitoring system component issues on machinery vibration levels leading to a potentially false diagnosis. Proper interpretation resulted in a correct diagnosis, thus avoiding unnecessary corrective actions.

scholarly journals Mechanical Vibration Monitoring System Based on Wireless Sensor Network

2018 ◽  
Vol 14 (06) ◽  
pp. 126
Author(s):  
Hongjuan Li ◽  
Gening Xu ◽  
Gelin Xu
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Monitoring System ◽  
Mechanical Vibration ◽  
Base Station ◽  
Rotating Machinery ◽  
Packet Transmission ◽  
Vibration Sensor ◽  
Vibration Monitoring ◽  
Wireless Sensor

<p class="0abstract"><span lang="EN-US">In order to solve the problem of mechanical vibration monitoring, a mechanical vibration monitoring system based on wireless sensor network was designed.</span><span lang="EN-US">First, the requirements of the hardware of the wireless rotating mechanical vibration monitoring system were analyzed. The monitoring node and base station node were designed.</span><span lang="EN-US">Then, based on the VisualBasic6.0 development tool, a software for monitoring the vibration of rotating machinery was designed. It had the functions of command control, data waveform display, and network topology display.</span><span lang="EN-US">In the mode of wireless mechanical vibration monitoring, the organization mode of the network, the transmission mode of data and the corresponding packet transmission format were improved.</span><span lang="EN-US">Finally, the reliable transmission of the data was verified. Compared with the traditional cable vibration sensor, the performance of the monitoring system was verified.</span><span lang="EN-US">The results showed that the wireless vibration monitoring system designed in this paper met the requirements for the monitoring of the vibration state of the rotating machinery.</span></p>

Research on Wireless Vibration Monitoring System for Devices in the Engine Room

2012 ◽  
Vol 503-504 ◽  
pp. 1651-1654
Author(s):  
Guo Yong Zhang ◽  
Shuo Wu
Keyword(s):  
Monitoring System ◽  
Vibration Sensor ◽  
Vibration Monitoring ◽  
Vibration State ◽  
Engine Room ◽  
On Line ◽  
The Common

The vibration can influence the running of devices in the engine room. It is necessary to monitor the vibration state of all running machineries. Through integrating the Bluetooth technology into the common vibration sensor, a wireless on-line vibration monitoring system is designed to monitor all devices. It will be helpful to avoid severe failure and improve the cruising ability.

Comprehensive Piping Vibration Monitoring Programs

2007 ◽  
Author(s):  
Gyorgy Szasz ◽  
Karen K. Fujikawa
Keyword(s):  
Monitoring Program ◽  
Rotating Machinery ◽  
Vibration Monitoring ◽  
Vibration Testing ◽  
Routine Manner ◽  
Monitoring Programs ◽  
Meaningful Data

Though piping is one of the largest and most expensive types of components in a plant, piping vibration is seldom monitored in a routine manner. Piping itself rarely fails due to vibration, but the same can not be said for related components such as supports, welds, valves, etc. Typically the only time piping vibration is monitored is if high vibration is perceived by operators or is expected due to plant operational changes such as uprates or major component replacements. The procedure for a comprehensive piping vibration monitoring program is thus not as widely known as that for other components such as rotating machinery. This paper presents the steps involved with monitoring piping vibration, obtaining meaningful data and ways to interpret the data. It could be viewed as a primer to those who have never been involved with vibration testing on piping, or as a guideline and checklist for those who have.

scholarly journals A Nonintrusive Rotor Blade Vibration Monitoring System

1996 ◽  
Author(s):  
Henry Jones
Keyword(s):  
Rotor Blade ◽  
Rotating Machinery ◽  
Vibration Monitoring ◽  
Static Deflection ◽  
Blade Vibration ◽  
Turbine Engine ◽  
Measurement Systems ◽  
Timing Data ◽  
On Line ◽  
Engine Rotor

A technique for measuring turbine engine rotor blade vibrations has been developed as an alternative to conventional strain-gage measurement systems. Light probes are mounted on the periphery of the engine rotor casing to sense the precise blade passing times of each blade in the row. The timing data are processed on-line to identify (1) individual blade vibration amplitudes and frequencies, (2) interblade phases, (3) system modal definitions, and (4) blade static deflection. This technique has been effectively applied to both turbine engine rotors and plant rotating machinery.

A Kind of Vibration Sensor and Testing System in Electromechanical Equipment Based on Fiber Bragg Grating

2016 ◽  
Vol 693 ◽  
pp. 1300-1307
Author(s):  
Qi Jiang ◽  
Teng Yun Guo
Keyword(s):  
Fiber Bragg Grating ◽  
Monitoring System ◽  
Experimental Analysis ◽  
Mechanical Vibration ◽  
Vibration Sensor ◽  
Vibration Monitoring ◽  
Bragg Grating ◽  
Element Analysis ◽  
Finite Element Analysis Simulation ◽  
Electromechanical Equipment

Mechanical vibration analysis is an important index to measure the running state of the electromechanical equipment. The vibration signals contain the information about the equipment running state. This paper studies and designs the vibration monitoring system based on fiber Bragg grating (FBG). Through the finite element analysis simulation, optimizes the sensor's structure, and uses the labview software to compile the corresponding vibration monitoring analysis software. Finally verifies the detection effect of the monitoring system, through the pulse signal and continuous signal dynamic experimental analysis. The result of the experimental analysis shows: this vibration monitoring system can monitor the vibration information and analyze vibration state effectively. It has the advantages of reducing the temperature interference and lateral disturbance, and detects the vibration of three direction at the same time. So it is feasible to monitor the electromechanical equipment.

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