منابع مشابه
The source of Acoustic Emission during meshing of spur gears
Condition monitoring of gears with vibration analysis and Spectrometric Oil Analysis Programs (SOAP) are widely accepted and used in the military aviation industry. Whilst the literature to date has shown the application of the Acoustic Emission (AE) technique to gearbox health monitoring still be in its infancy, there exist opportunities to develop the technique into a complementary diagnostic...
متن کاملan investigation to failure mechanisms of damaged carbon-epoxy composite using acoustic emission method
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متن کاملLocalization of Acoustic Emission Source Based on Chaotic Neural Networks
Because of containing several model waveforms and transmission speed of each model are various, the source signal of rub-impact acoustic emission (AE) will lead to waveform distortion in propagation process, and it is difficult to achieve exact source location by traditional time difference of arrival algorithm. A chaotic neural network technique was introduced to calculate the location of AE s...
متن کاملStudy of the Frictional Surface Damage Using Acoustic Emission Method
In this study, the change at rubbing surfaces has been investigated experimentally using an acoustic emission signal monitoring system. A steel ring is slipped on the surface of a metallic sheet to simulate frictional conditions. The mechanical disturbances caused by the movement of the ring produce stress waves propagating along the sheet surface. The out of plane displacement of the sheet su...
متن کاملAcoustic Emission Sensor Calibration for Absolute Source Measurements
This paper describes sensor calibration and signal analysis techniques applicable to the method of acoustic emission (AE) and ultrasonic testing. They are particularly useful for obtaining absolute measurements of AE wave amplitude and shape, which can be used to constrain the physics and mechanics of the AE source. We illustrate how to perform calibration tests on a thick plate and how to impl...
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ژورنال
عنوان ژورنال: Proceedings of the Japan Society of Civil Engineers
سال: 1981
ISSN: 1884-4936,0385-5392
DOI: 10.2208/jscej1969.1981.314_125