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A bridge vibration monitoring device with the vibrating-wire sensor as the basic measuring device is designed to solve some problems in the application of the traditional engineering vibration measuring technologies into bridge monitoring, and a remote monitoring system is established with the wireless network technology, with hardware and software design integrating the single chip, ZigBee and GPRS...
This article presents an automated vibration monitoring system for a lathe machine. This study was motivated by the fact that machine production time was wasted during planned maintenance when, most times, the machines did not require any maintenance at all. Also, the periodic intervals used did not depict the correct ageing of the machine components which resulted in unexpected failure of the machine...
This paper lays out the current work and discuss about the virtual lab simulation of rolling element bearing defects either the inward or external race or on the moving component surface that are visually undetectable. The present experiment proposed in this paper teaches how a bearings fault in the system is monitored based on the vibration analysis. Bearing failures have incredible effect on industry...
In recent years, the use of wireless sensor networks for vibration monitoring is emphasized, because of its capability to continuously monitor at hard-to-reach locations of complex machines. Low power consumption is one of the main requirements for the sensor nodes in continuous and long-term vibration monitoring. However, the power consumption of state-of-the-art wireless sensor nodes is significantly...
With the going of the running time, the fault of the wind turbines happened frequently, which result in the long nonscheduled shutdown time and the great economic loss. The vibration signal of the wind turbine is acquired, processed and analyzed, which can provide the equipment performance report and the reasonable maintenance advice for the field staff. Therefore the field staff can make a reasonable...
Since vibration and shock loads are always known as a destructive loads while drilling a borehole and reason for tool failure, more detailed studies of vibration and dynamic behavior of drill string and bottom hole assembly to prevent any time lost and hole problem is needed to be done. To achieve these objectives, monitoring the vibration in laboratory scale is performed. This paper describes a research...
The paper studies the chaos characteristics of different situations in the reciprocating membrane pump' s typical faults with wavelet packets technology. The relative growth rate of the largest Lyapunove exponent is put forward as a new parameter to identify the development of the wearing clearance and the fluctuation of the tank suction' s pressure. The research shows different wearing places have...
The V-22 tiltrotor aircraft's primary tool for aircraft maintenance is the Comprehensive Automated Maintenance Environment - Optimized (CAMEO). CAMEO is a ground based system for aircraft download processing. Under the CAMEO umbrella are several tools with distinct functionality, linked together and sharing common data to support aircraft maintenance operations. This paper provides a general overview...
This paper describes a method for on-line condition monitoring of rotating electric generators without a need for installed sensors dedicated. This sensorless method has been based on continuous monitoring vibration using neural networks for the classification of bearing failures experimentally induced. The results obtained have an error of less than 0,5% confirming the validity of the method proposed.
This article makes use of marine diesel engine local instantaneous speed signals. These signals have properties of non-stationary, non-Gauss and low signal-to-noise, and been deal with according to blind source separation (bss) algorithm and combining other time domain, frequency domain analysis method. Hardware design and software design of a vibration monitoring and fault diagnosis system for diesel...
This paper is a study and share information of partial discharge measurement and vibration monitoring on power transformer. Power transformer is one of the critical components in power plant and transmission power system. Therefore, an appropriate maintenance program should be applied to the transformer in order to make power system more reliable and to prevent transformer failure at early stage....
Low-cost noninvasive vibration monitoring methodology to identify potential faulty circuit breakers is studied. Special attentions are given to the sensor selection, data acquisition triggering, and data processing algorithms. Initial implementation and test results show feasibility and improvement potentials of the technology.
Mobile applications and devices are one of the fasted developing computer technologies now days. Mobile devices, such as smartphons, are not used for communication only but also for remote data access and exchange. In this article mobile application for remote monitoring of power generators condition is discussed. Application was run on Symbian OS based cell phones and was developed using Python -...
The fault diagnosis in tribosystem was a difficult problem due to the complex structure of the tribosystem, the nonlinear character of the tribosystem and the presence of multi-excite sources. Usually, one method of fault diagnosis can only inspect one corresponding fault category. In this paper, oil monitoring and vibration monitoring methods were utilized together to diagnose the rolling bearing...
Nowadays electrical utilities or industries are trying to monitor their electrical apparatus with online monitoring, without shutting the apparatus down. We are in PLN has taken this monitoring concept by applying vibration monitoring. This vibration monitoring has been applied to some of the transformers as a pilot project in PLN Region Jakarta and Banten. As voltage applied to the transformer, vibration...
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