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http://dx.doi.org/10.5050/KSNVN.2008.18.3.293

Non-contact Longitudinal Modal Testing of a Non-ferromagnetic Pipe Using Magnetostrictive Patches  

Park, Chan-Il (서울대학교 정밀기계설계공동연구소)
Han, Soon-Woo (한국철도기술연구원)
Kim, Yoon-Young (서울대학교 공과대학 기계항공공학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.3, 2008 , pp. 293-298 More about this Journal
Abstract
Non-contact modal testing for longitudinal modes of a pipe is discussed in this work. The suggested method can generate and measure longitudinal vibrations without mechanical contact by using the coupling phenomenon between deformation and magnetic field, known as the magnetostrictive effect. This effect has been used to generate and measure ultrasonic waves, but seldom used to deal with audible vibrations. In this investigation, the validity of the developed method in a typical vibration frequency range is checked with an Inconel pipe being used in nuclear power plants.
Keywords
Non-contact Modal Testing; Longitudinal Vibration; Magnetostrictive Patch;
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Times Cited By KSCI : 1  (Citation Analysis)
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