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Estimation and Analysis of Transport Direction according to Traveling Wave in Ultrasonic Transport System  

Jeong, Sang-Hwa (조선대학교 기계공학과)
Kim, Gwang-Ho (조선대 대학원 기계공학과)
Shin, Sang-Moon (조선대 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.17, no.2, 2008 , pp. 30-37 More about this Journal
Abstract
An object transport system is driven by a conveyor belt system or a magnetic levitation system. It is an indispensable device in many fields and especially it is very important in the factory automation. However, the conventional transport system can damage precision optical components by the contact force and destroy the inner structure of semiconductor by the magnetic field. The new transport system for transporting without damage is required. The ultrasonic transport system is a device that transports objects on the elastic body using ultrasonic wave. In this paper, an object transport system using the ultrasonic wave is developed for transporting precision elements without damage. Traveling waves are generated by the ultrasonic wave generator fixed in both ends of the beam. The traveling wave of the ultrasonic transport system is theoretically analyzed. Transport direction of the object is examined according to phase difference and frequency. The theoretical results are verified by experiments.
Keywords
Ultrasonic Wave Generator; Vibration Characteristics; Flexural Beam; Mode Shape; Standing Wave; Traveling Wave; Phase Difference;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Norton, M. P., 1989, Fundamentals of Noise and Vibration Analysis for Engineers, Cambridge Univ. Press, New York, pp. 81-93
2 Loh, B. G. and Ro, P. I., 2000, "An Object Transport System Using Flexural Ultrasonic Progressive Waves Generated by Two-Mode Excitation," IEEE Transactions on Ultrasonics, Vol. 47, No. 4, pp. 994-999   DOI   ScienceOn
3 Sashida, T., 1994, An Introduction to Ultrasonic Motors, Oxford Univ. Press, New York
4 Loh, B. G. and Ro P. I., 2000, "Changing the Propagation Direction of Flexural Ultrasonic Progressive Waves by Modulating Excitation Frequency," Journal of Sound and Vibration, Vol. 238, No. 1, pp. 171-178   DOI   ScienceOn
5 Jeong, S. H., Kim, T. H., Shin, B. S., and Cha, K. R., 2003, "A Study on Object Transport System using 2-Mode Ultrasonic Wave," Proc. KSPE Spring Conference, pp. 1170-1173
6 Jeong, S. H., Kim, G. H., Choi, S. B., Cha, K. R., and Song, S., 2006, "A Study on the Transportation Characteristics according to Beam Shape of Optical Lens Transport System using Ultrasonic Wave," Transactions of KSMTE, Vol. 15, No. 6, pp. 8-14   과학기술학회마을
7 Loh, B. G., 2004, "Acoustic Levitation and Rotation Produced by Ultrasonic Flexural Vibration," Transactions of the KSNVE, Vol. 14, No. 5, pp. 432-438   DOI
8 Jeong, S. H. and Shin, B. S., 2003, "A Study on the Relationship between Flexural Beam Shape and Transport Characteristics for the Ultrasonic Transport System," Proc. KSMTE Autumn Conference, pp.25-29
9 Rao, S. S., 2004, Mechanical Vibrations, Addison Wesley, Massachusetts, pp. 527