Investigation on damping model for vibration response analysis using whole ship model

Hiroyuki Takahashi; Yukitaka Yasuzawa

Investigation on damping model for vibration response analysis using whole ship model

Hiroyuki Takahashi, Yukitaka Yasuzawa

Ship and Marine Structure

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

In the present study, damping model used for vibration response analysis of large ship structures is focused on. At first, an exciter test of VLCC was carried out in order to acquire a high resolution frequency response function. Then experimental modal analysis was carried out to identify the modal damping ratios. Obtained modal damping ratios show large discrepancy from conventional damping models. Therefore we proposed a practical damping model for the actual ship and performed the vibration response analysis using them. Future works were extracted based on the comparison of the numerical results with measured response of the ship structure.

Original language	English
Title of host publication	Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan
Publisher	International Society of Offshore and Polar Engineers
Pages	890-895
Number of pages	6
ISBN (Print)	9781880653913
Publication status	Published - 2014
Event	24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan - Busan, Korea, Republic of Duration: Jun 15 2014 → Jun 20 2014

Publication series

Name	Proceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)	1098-6189
ISSN (Electronic)	1555-1792

Other

Other	24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan
Country/Territory	Korea, Republic of
City	Busan
Period	6/15/14 → 6/20/14

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Ocean Engineering
Mechanical Engineering

Cite this

Investigation on damping model for vibration response analysis using whole ship model. / Takahashi, Hiroyuki; Yasuzawa, Yukitaka.
Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. International Society of Offshore and Polar Engineers, 2014. p. 890-895 (Proceedings of the International Offshore and Polar Engineering Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Takahashi, H & Yasuzawa, Y 2014, Investigation on damping model for vibration response analysis using whole ship model. in Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. Proceedings of the International Offshore and Polar Engineering Conference, International Society of Offshore and Polar Engineers, pp. 890-895, 24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan, Busan, Korea, Republic of, 6/15/14.

Takahashi, Hiroyuki ; Yasuzawa, Yukitaka. / Investigation on damping model for vibration response analysis using whole ship model. Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. International Society of Offshore and Polar Engineers, 2014. pp. 890-895 (Proceedings of the International Offshore and Polar Engineering Conference).

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AB - In the present study, damping model used for vibration response analysis of large ship structures is focused on. At first, an exciter test of VLCC was carried out in order to acquire a high resolution frequency response function. Then experimental modal analysis was carried out to identify the modal damping ratios. Obtained modal damping ratios show large discrepancy from conventional damping models. Therefore we proposed a practical damping model for the actual ship and performed the vibration response analysis using them. Future works were extracted based on the comparison of the numerical results with measured response of the ship structure.

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ER -

Investigation on damping model for vibration response analysis using whole ship model

Abstract

Publication series

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All Science Journal Classification (ASJC) codes

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