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Keywords: disturbance
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Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-535
... machine learning target path cross-track error evolutionary algorithm drift angle los guidance law guidance law ship adrc coordinate system grey wolf optimization derivative gwo artificial intelligence controller disturbance course controller rejection control parameter tuning...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-269
... rov electrical industrial apparatus upstream oil & gas modeling & simulation machine learning europe government sub-sea system optimization problem artificial intelligence remotely operated vehicle prediction model control method external disturbance controller trajectory...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-270
... ABSTRACT Work-class ROVs are always subject to external disturbances and system uncertainties. The sliding mode control is an effective method to overcome the disturbances, but its chattering phenomenon restricts its practical application on ROVs. In this paper, we propose a model-free...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-256
... ABSTRACT This paper proposes a new algorithm for the floating of the underwater platform. To eliminate the effect of the disturbance and improve the safety of the floating process, a fuzzy PID algorithm with a nonlinear feedback technique is used to control the underwater platform. Compared...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-309
... is actuated based on the DT modeling of float heave and roll including the effect of the moving mass, informed by the assimilation of past float motions and, optionally, using phase-resolved wave data at the float (either measured or predicted based on a separate model) incorporating disturbance previewing...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-231
.... In the sea area where the USV is used, there are disturbances such as wind, current, waves, which make it difficult to maintain the position. To solve this problem, we devised a position control method that dynamically adds correction inputs using a neural network. INTRODUCTION We have been studying...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-235
... on the combination of normalization and pseudo-inverse method is adopted in this paper. The simulation results show that the designed controller is of excellent robustness to uncertain disturbances. INTRODUCTION With the increasing demand for seafood in human society, the aquaculture industry has developed...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-298
... uncertainties, environmental disturbances, input saturation, and output constraints. The guided DP tracking control problem is first addressed based on reference filters. Then, the NN technology and robust term are fused into vectorial backstepping procedure to realize the adaptability to uncertainties...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-009
... mining vehicle deep-sea mining vehicle plate sinkage displacement interaction metals & mining sinkage simulation numerical simulation disturbance dynamic response characteristic formula different size pressure-sinkage model Proceedings of the Thirty-second (2022) International Ocean...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-056
... design lifting vector simulator blade root subsea system coefficient wind speed rotation matrix offshore wind turbine turbulent wind disturbance Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-330
... pore water international ocean lake sediment disturbance sediment antarctica sampler module water sample antarctic ozone hole climate change high-fidelity thirty-second pipe polar lake efficiency polar engineering conference proceedings ABSTRACT Polar lake sediment...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-4176
...-induced disturbances, the estimation levels, i.e., perception of the current situation (level 1); comprehension process contains a kinematic curvilinear motion model that describes of the current situation (level 2); projection of future situation (level 3). vessel motions. The estimated result can help...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3274
... mooring system downtime berth 1 original breakwater length vertical quay plan quay plan disturbance incident wave height subsea system marine transportation ship slope type quay plan berth breakwater length container vessel breakwater length plan wave height Abstract...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2164
... SAMPLING AND PULL-UP TEST (S&PUT) Fig. 1 compares the concept of S&PUTs and that of standard penetration tests (SPTs) which are most widely used for geotechnical investigations. The basic concept of these two test methods is identical in that, both sampling of disturbed soil samples and sounding...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1134
... control law. Besides; in order to achieve energy-efficient X rudder allocation; a multi-objective optimization method is proposed. Moreover; the rudder error dynamics is considered and compensated by rudder error disturbance observer. Finally; comparative numerical simulations are carried out...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1139
... the unknown disturbance. To further suppress the residual vibration; an optimal control scheme is proposed. The dynamic modelling and controlling of underwater manipulators are developed in ADAMS and SIMULINK. The simulation results show that the output position is converged to the desired trajectory quickly...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1141
... conference disturbance mother ship lstm motion control Abstract We are developing a small ASV (μ-ASV) with a length of 2 m based on a surfboard as one of the small marine research instruments. The μ-ASV will be used as a mother ship of the small ROV. In this case; it is difficult to model...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2106
... production logging cable monitoring fiber production control upstream oil & gas detection disturbance fibre optic acoustic sensing perturbation reservoir surveillance acoustic sensing fibre application production monitoring loudspeaker cable frequency higher frequency dts...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2107
... vehicles (BUVs) are propelled by undulatory fins for high mobility in complex underwater environments. Moreover, high stability, low noise, and small environmental disturbance are the advantages of biomimetic underwater vehicles compared with traditional underwater vehicles. A variety of biomimetic...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2109
... ABSTRACT In this paper, a fuzzy auto disturbance rejection control is proposed for the UAT (underwater auto trolley) based on fuzzy observer and fuzzy controller, which have an obvious advantage compare to ADRC. Considering the disturbance, accuracy and nonlinearity for the UAT system, a fuzzy...

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