Abstract
This paper presents the experimental results on the dynamics of a thruster assisted mooring system with active mooring winches. Moorings are used to maintain the position of a floating platform against quasi-constant external forces induced by current and wind, and thrusters control slow drift oscillation. The LQI (linear quadratic with integral) control system was adopted to prevent slow drift oscillation. Control of motions in the wave frequency region was ignored because the amplitude of those motions is smaller than those of the slow drift oscillation and enormous thruster power is needed to control them. The controlled results were compared with the non-controlled ones and performance of the LQI control system is discussed.
| 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 | 249-254 |
| Number of pages | 6 |
| ISBN (Print) | 1880653168 |
| Publication status | Published - Jan 1 1995 |
| Event | 5th International Offshore and Polar Engineering Conference, ISOPE 1995 - The Hague, Netherlands Duration: Jun 11 1995 → Jun 16 1995 |
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 | 6/11/95 → 6/16/95 |
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All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Ocean Engineering
- Mechanical Engineering
Cite this
Model experiments on thruster assisted mooring system. / Nakamura, Masahiko; Koterayama, Wataru; Kajiwara, Hiroyuki.
5th International Offshore and Polar Engineering Conference, ISOPE 1995. International Society of Offshore and Polar Engineers, 1995. p. 249-254 (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 - Model experiments on thruster assisted mooring system
AU - Nakamura, Masahiko
AU - Koterayama, Wataru
AU - Kajiwara, Hiroyuki
PY - 1995/1/1
Y1 - 1995/1/1
N2 - This paper presents the experimental results on the dynamics of a thruster assisted mooring system with active mooring winches. Moorings are used to maintain the position of a floating platform against quasi-constant external forces induced by current and wind, and thrusters control slow drift oscillation. The LQI (linear quadratic with integral) control system was adopted to prevent slow drift oscillation. Control of motions in the wave frequency region was ignored because the amplitude of those motions is smaller than those of the slow drift oscillation and enormous thruster power is needed to control them. The controlled results were compared with the non-controlled ones and performance of the LQI control system is discussed.
AB - This paper presents the experimental results on the dynamics of a thruster assisted mooring system with active mooring winches. Moorings are used to maintain the position of a floating platform against quasi-constant external forces induced by current and wind, and thrusters control slow drift oscillation. The LQI (linear quadratic with integral) control system was adopted to prevent slow drift oscillation. Control of motions in the wave frequency region was ignored because the amplitude of those motions is smaller than those of the slow drift oscillation and enormous thruster power is needed to control them. The controlled results were compared with the non-controlled ones and performance of the LQI control system is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0000187105&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000187105&partnerID=8YFLogxK
M3 - Conference contribution
SN - 1880653168
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 249
EP - 254
BT - 5th International Offshore and Polar Engineering Conference, ISOPE 1995
PB - International Society of Offshore and Polar Engineers
ER -