The simulation of the SWATH ship motion with fixed fin in longitudinal waves

Ming-Chung Fang, Bing Nan Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently the authors had successfully applied the strip theory to predict the motion of the SWATH ship running freely in waves by frequency domain analysis. In the present paper, a time domain simulation technique was extended to evaluate the motion response of a SWATH ship with fixed fin in waves. The nonlinear effect aroused from the large motion and the nonlinear viscous force is also taken into consideration. The surge effect on pitch moment is also included to make the motion prediction more accurate. The time history for the equations of motions are solved by 4th Runge Kutta method. The corresponding hydrodynamic coefficients at each time step are calculated by applying an auto-mesh generation technique which needs only one set of initial input of the ship configuration. To verify the validity of the theoretical prediction, a series of model tests were handled in NCKU-DNAME towing tank for comparison. The results show that the technique developed here can be applied to predict the time domain simulation of SWATH ship motion with fixed fin in large longitudinal waves. Hopefully it can be further extended to study the controllable fin case incorporating with the advanced control techniques.

Original languageEnglish
Title of host publication5th International Offshore and Polar Engineering Conference, ISOPE 1995
PublisherInternational Society of Offshore and Polar Engineers
Pages484-491
Number of pages8
ISBN (Print)1880653168
Publication statusPublished - 1995 Jan 1
Event5th International Offshore and Polar Engineering Conference, ISOPE 1995 - The Hague, Netherlands
Duration: 1995 Jun 111995 Jun 16

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume1995-June
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other5th International Offshore and Polar Engineering Conference, ISOPE 1995
CountryNetherlands
CityThe Hague
Period95-06-1195-06-16

Fingerprint

Ships
Ship model tanks
Frequency domain analysis
Mesh generation
Runge Kutta methods
Equations of motion
Hydrodynamics

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

Fang, M-C., & Lin, B. N. (1995). The simulation of the SWATH ship motion with fixed fin in longitudinal waves. In 5th International Offshore and Polar Engineering Conference, ISOPE 1995 (pp. 484-491). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 1995-June). International Society of Offshore and Polar Engineers.
Fang, Ming-Chung ; Lin, Bing Nan. / The simulation of the SWATH ship motion with fixed fin in longitudinal waves. 5th International Offshore and Polar Engineering Conference, ISOPE 1995. International Society of Offshore and Polar Engineers, 1995. pp. 484-491 (Proceedings of the International Offshore and Polar Engineering Conference).
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Fang, M-C & Lin, BN 1995, The simulation of the SWATH ship motion with fixed fin in longitudinal waves. in 5th International Offshore and Polar Engineering Conference, ISOPE 1995. Proceedings of the International Offshore and Polar Engineering Conference, vol. 1995-June, International Society of Offshore and Polar Engineers, pp. 484-491, 5th International Offshore and Polar Engineering Conference, ISOPE 1995, The Hague, Netherlands, 95-06-11.

The simulation of the SWATH ship motion with fixed fin in longitudinal waves. / Fang, Ming-Chung; Lin, Bing Nan.

5th International Offshore and Polar Engineering Conference, ISOPE 1995. International Society of Offshore and Polar Engineers, 1995. p. 484-491 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 1995-June).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Fang M-C, Lin BN. The simulation of the SWATH ship motion with fixed fin in longitudinal waves. In 5th International Offshore and Polar Engineering Conference, ISOPE 1995. International Society of Offshore and Polar Engineers. 1995. p. 484-491. (Proceedings of the International Offshore and Polar Engineering Conference).