Browse > Article
http://dx.doi.org/10.5050/KSNVE.2016.26.5.528

Contribution Analysis to Identify the Source of Ship Hull Vibration  

Lee, Jun Woo (School of Mechanical Engineering, Pusan National University)
Ahn, Se Jin (School of Mechanical&Electrical Engineering, Uiduk University)
Oh, Jun Seok (Agency for Defense Development)
Kim, Tae Hyeong (Agency for Defense Development)
Jeong, Weui Bong (School of Mechanical Engineering, Pusan National University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.26, no.5, 2016 , pp. 528-535 More about this Journal
Abstract
The vibration of a ship gives a significant effect on the noise radiated into the water. This paper focused on the vibration of ship hull due to the sub-generator located on the deck in the anchored condition. The contributions of the transfer paths between sub-generator and ship hull were analyzed using the TPA and the OTPA method. While the sub-generator was operation and the main engine was turned off, the vibrations were measured simultaneously at the 38 locations of the ship and the one hydrophone was arranged to measure the underwater radiated noise at the overside ship. The results of the transfer path by applying TPA and OTPA were compared and discussed. As a result of these methods, the top of stovepipe and valve are contributive. Reinforcing these structures is the most effective to reduce the vibration of ship hull.
Keywords
Contribution Analysis; Ship Hull Vibration; Sea Trial; Sub-Generator; TPA(transfer path analysis); OTPA(operational transfer path analysis);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Kwak, H. T., Kang, K. H. and Kim, J. H., 2013, Introduction of Transfer Path Analysis on Hydraulic Excavator, Proceedings of the KSNVE Annual Spring Conference, pp. 822~823.
2 Jeong, M. K., Lee, S. S., Kim, Y. K., Ahn S. K. and Lee, S. Y., 2009, Estimation of Dynamic Load of the Utility in Building by TPA Method, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 19, No. 8, pp. 773~780.   DOI
3 Jeong, B. K. and Jeong, W. B., 2011, Estimation of Vibration Source and Sound Radiation of a Refrigerator Fan by using Measured Acceleration Signals, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 21, No. 9, pp.834~841.   DOI
4 de Klerk, D. and Ossipov, A., 2010, Operational Transfer Path Analysis: Theory, Guidelines and Tire Noise Application, Mechanical Systems and Signal Processing, Vol. 24, No. 7, pp. 1950~1962.   DOI
5 Kim, J. S., Sin, K. S., Choi, S. I., Im, S. B., Kim, J. D. and Lee, S. K., 2014, Analysis of the Cause of Hindrance for Ride Quality with OPAX and OTPA, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 24, No. 12, pp. 935~942.   DOI
6 Jung, J. D., Hong, S. Y., Song, J. H., Kwon, H. W., Noh, H. M. and Kim, J. K., 2016, A Study on Interior Noise Contribution Analysis of Trains based on OTPA Method, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 26, No. 1, pp. 97~103.   DOI
7 LMS.Virtual Lab., Transfer Path Analysis, LMS International NV, Belgium.