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 language | English |
|---|---|
| Title of host publication | 5th International Offshore and Polar Engineering Conference, ISOPE 1995 |
| Publisher | International Society of Offshore and Polar Engineers |
| Pages | 484-491 |
| Number of pages | 8 |
| ISBN (Print) | 1880653168 |
| Publication status | Published - 1995 Jan 1 |
| Event | 5th International Offshore and Polar Engineering Conference, ISOPE 1995 - The Hague, Netherlands Duration: 1995 Jun 11 → 1995 Jun 16 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| Volume | 1995-June |
| ISSN (Print) | 1098-6189 |
| ISSN (Electronic) | 1555-1792 |
Other
| Other | 5th International Offshore and Polar Engineering Conference, ISOPE 1995 |
|---|---|
| Country | Netherlands |
| City | The Hague |
| Period | 95-06-11 → 95-06-16 |
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All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Ocean Engineering
- Mechanical Engineering
Cite this
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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 proceeding › Conference contribution
TY - GEN
T1 - The simulation of the SWATH ship motion with fixed fin in longitudinal waves
AU - Fang, Ming-Chung
AU - Lin, Bing Nan
PY - 1995/1/1
Y1 - 1995/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85054792926&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85054792926&partnerID=8YFLogxK
M3 - Conference contribution
SN - 1880653168
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 484
EP - 491
BT - 5th International Offshore and Polar Engineering Conference, ISOPE 1995
PB - International Society of Offshore and Polar Engineers
ER -