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http://dx.doi.org/10.3795/KSME-A.2006.30.3.342

Generation and Detection of Torsional Waves in a Rotating Shaft Using a Magnetostrictive Patch Array  

Cho Seung-Hyun (서울대학교 대학원 기계항공공학부)
Han Soon-Woo (서울대학교 정밀기계설계공동연구소)
Park Chan-Il (서울대학교 대학원 기계항공공학부)
Kim Yoon-Young (서울대학교 기계항공공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.30, no.3, 2006 , pp. 342-348 More about this Journal
Abstract
A new magnetostrictive patch array transducer for the generation and detection of torsional waves is developed fur the on-line health monitoring of rotating shafts. Even though the torsional wave is useful in nondestructive evaluation due to its non-dispersive property, a transducer generating torsional waves in rotating shafts has not been developed so far. In this research, a torsional wave transducer using the magnetostrictive effect is newly developed. By bonding an away of magnetostrictive rectangular patches on the outer surface of the shaft at an oblique angle of $45^{\circ}$ and encircling the array by a solenoid coil, we have successfully generated and measured torsional waves by the developed transducer. Several experiments were carried out to check the transducer performance.
Keywords
Torsional Wave; Rotating Shaft; Patch Array;
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Times Cited By KSCI : 1  (Citation Analysis)
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