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Keywords: disturbance
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Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-058
... ABSTRACT Floating Production Storage and Offloading (FPSO) vessels for offshore operations use a Dynamic Positioning system (DP), which includes a controller to correct the position variation of the FPSO subject to internal and external disturbances. Most of these positioning systems use a...
Proceedings Papers

Paper presented at the The Fifth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 17–20, 2002
Paper Number: ISOPE-P-02-028
... ABSTRACT: An adaptive operation of a disturbance accommodating controller(DAC) depending on the seastate number for roll motion of a ship is suggested. DAC suggested in this paper assumes the shape of the disturbance, i. e. the wave slope excitation as a harmonic signal that consists of two...
Proceedings Papers

Paper presented at the The Fifth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 17–20, 2002
Paper Number: ISOPE-P-02-003
... feedback controls shows good tracking and disturbance control ability and is effective and useful during the approach and berthing maneuvers. INTRODUCTION Systems are generally multivariable, usually with coupling systems as shown in the top figure of Fig. 1. If the system can be divided so as to have...
Proceedings Papers

Paper presented at the The Fifth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 17–20, 2002
Paper Number: ISOPE-P-02-018
... ABSTRACT: Current control system for fully-submerged hydrofoil based on optimal feedback control has several problems, such as it has no good performance of contouring waves and it cannot reduce the effect of wave disturbance. In this paper, the longitudinal control system for fully-submerged...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-057
... inhomogeneous term is recognized as pressure disturbance distributed infinitely on the free surface. Consequently, the question is how to properly define the boundary condition at infinity for the surface wave diffraction problems of second order and higher orders to be consistent with this kind of pressure...

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