Twin-Rudder-System Configurations’ Impact on Ferry Ships’ Course-Keeping Ability under Windy Conditions
Ship course-keeping plays a vital role in navigation safety, especially when a ship is operating under windy conditions. A method to control ship movements through rudder-system configuration is necessary to stabilize a ship’s course. This paper describes the twin-rudder-system configuration des...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2021-04-01
|
| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/3829 |
| Summary: | Ship
course-keeping plays a vital role in navigation safety, especially when a ship is
operating under windy conditions. A method to control ship movements through
rudder-system configuration is necessary to stabilize a ship’s course. This
paper describes the twin-rudder-system configuration design’s impact on a ship’s
course-keeping ability under windy conditions. A time-domain simulation using
the MATLAB-Simulink program was developed for this purpose. A proportional
integral derivative (PID) controller was used to adjust the ship‘s heading
angle according to the desired path. Several parameters—such as relative wind
velocity and directions—were accounted for in the simulation. The result shows
that, at a wind direction of 88o, the ship’s course-keeping speed decreased;
however, increasing wind velocity caused a large deviation in the ship’s
heading angle. Meanwhile, the ship‘s course-keeping speed increased with rising
windspeed directions of 219o. The ship’s course-keeping time, at around
219o under the simulation’s wind direction, was 11.84% lower than during
a previous sea-trial. A possible reason for this difference is that the
simulation excluded waves and currents. |
|---|---|
| ISSN: | 2086-9614 2087-2100 |