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http://dx.doi.org/10.5050/KSNVN.2007.17.3.235

Vibration Measurement of an Automobile Exhaust System in Operation  

Kim, Sung-Kook (군산대학교 대학원 기계공학부)
Lee, Jong-Nam (군산대학교 대학원 기계공학부)
Han, Soon-Woo (철도기술연구원)
Chung, Tae-Jin (군산대학교 기계공학부)
Lee, Sin-Young (군산대학교 기계공학부)
Jang, Gang-Won (군산대학교 기계공학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.17, no.3, 2007 , pp. 235-240 More about this Journal
Abstract
In this work, the operational deflection shape(ODS) of an automobile exhaust system is measured by using a recently-developed magnetic sensor. The magnetic sensor is composed of a solenoid and two pairs of permanent magnets generating an antisymmetric magnetic field in the lateral direction inside the solenoid. Lateral movement of a ferromagnetic pipe inside the magnetic field of the suggested sensor induces an electromotive force in the solenoid corresponding to the lateral velocity of the pipe. Due to the simplicity and non-contact characteristics of the magnetic sensor, dynamic behaviors of the structures operating under high temperature such as an exhaust pipe can be efficiently observed. It is shown that the lateral ODS of an exhaust system can be successfully measured by the suggested sensors.
Keywords
Exhaust System; Magnetic Sensor; ODS; Non-contact Vibration Measurement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Kim, Y. Y., Lee, C. M, Kim, Y. H. and Kim, J. H., 1995, 'The Bend Modeling Technique in the Vibration Analysis of the Exhaust System', Transactions of the KSME A, Vol. 19, No.2, pp, 597-610   과학기술학회마을
2 Kim, B. S. and Kang S. J., 1992, 'Study on Idling Vibrational Characteristics of Engine Exhaust System' , Proceedings of the KSAE 1992 Fall Annual Meeting, pp, 497-505
3 Yoon, K. R, 2002, 'A Study on the Method of Vibration Analysis for the Exhaust System in Car Model', Proceedings of the KSAE 2002 Spring Annual Meeting, pp.760-765
4 Oh, J. E., Im, D. G., Lee, J. Y., Cho, J. H. and Kim, M. B., 1992, 'Dynamic Characteristics Identification of Automobile Exhaust System and Determination of Hanger Optimal Position', Transactions of the KSAE, Vol. 14, No. 3, pp. 58-70
5 Lee, S. S. and Lee, C. M., 1993, 'A Study on Determining Hanger Positions of Exhaust System and the Effect of Bellows' , Proceedings of the KSAE 1993 Spring Annual Meeting, pp. 315-321
6 Cho, M. and Jung, H., 2001, 'Verification of the Finite Element Model of an Automobile Exhaust System Using Modal Testing' , Proceedings of the KSNVE Annual Autumn Conference, pp. 665-670
7 Lee, C. M., Park, S. T. and Kim, S. H., 1997, 'Application of Frequency Response Function for Verification of the FEM Model of the Exhaust System' , Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 7, No.6, pp. 1049-1058   과학기술학회마을
8 Rothberg, S. J. and Bell, J., 2004, 'On the Application of Laser Vibrometry to Translational and Rotational Vibration Measurements on Rotating Shaft' , Measurement 35, pp. 201-210   DOI   ScienceOn
9 Han, S. W., 2005, Development and Application of Magnetic Sensor for the Noncontact Measurement of Bending Vibration, Ph. D. Theses, Seoul National University
10 Ewins, D. J., 2000, Modal Testing: Theory, Practice and Application, Research Studies Press Ltd., Baldock, England