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Keywords: membership function
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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-23-268
... with the traditional double closed-loop PD controller, this controller has better control effect artificial intelligence membership function deviation fuzzy control ler pd controller navigation fuzzy logic controller equalization system pitch angle steady-state error buoyancy upstream oil & gas...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-256
... problem for an offshore steel jacket platform. The new method is very useful to deal with the nonlinear wave force. fuzzy logic controller control effect china government platform coefficient asia government artificial intelligence fuzzy pid controller expert system membership function...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-274
... membership function adaptive fuzzy control design closed loop structure auv artificial intelligence coordinate system control theory equation quantization factor fuzzy control ler pd controller hydrodynamic model body coordinate system underwater vehicle Proceedings of the Thirty-second (2022...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2111
... angle altitude fusion mechanism fuzzy logic mechanism membership function avoidance behavior weight coefficient obstacle control system obstacle avoidance instruction Near Bottom Altitude Keeping and Collision Avoidance Control of An Under-actuated AUV Based on Behavior Coordination...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-073
... fuzzy inference maximum pitch angle positioning accuracy membership function Mitigating Roll-Pitch Motion by an Adaptive Fuzzy Damping Controller in Dynamic Positioning System Huacheng He a, Lei Wang a, Shengwen Xu a, Bo Li a, Jian Zhang b a State Key Laboratory of Ocean Engineering, Collaborative...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-618
... fuzzy logic artificial intelligence anfis method engineering wec device input variable hydrodynamic efficiency prediction experimental result machine learning wave energy converter membership function dataset ocean energy owc device abdussamie anfis model condition 1 ocean...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-378
... avoidance obstacle avoidance system autonomous underwater vehicle fuzzy rule base auv artificial intelligence obstacle avoidance navigation sensor vehicle under-actuated auv membership function obstacle 3D Space Obstacle Avoidance System for a Large-Scale Autonomous Underwater Vehicle Ben Li1...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-452
... by taking large rudder angle, most of past researches have not taken the maximum rudder angle into account when they design automatic track keeping systems. algorithm membership function overshoot cross track error control system educational setting waypoint engineering fuzzy inference...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-410
...; the first phase is the fuzzification process where membership functions are used to express the degree of relation of each input variables to a predefined fuzzy set. The next step consists of the application of fuzzy operators (AND or OR) to determine the antecedent part of each rule for the corresponding...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-625
... helpful to control the heading of BUVs at a certain swimming speed. experiment controller decision control unit fin disturbance buv frequency artificial intelligence control scheme wang propulsor fuzzy strategy bilateral fin undulatory fin fuzzy logic long fin membership function...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-178
... and Li, 2012). robustness disturbance machine learning pod propulsion artificial intelligence controller fuzzy controller usv pod propulsion small surface usv evolutionary algorithm rudder angle control system fuzzy rule simulation result stage fuzzy controller membership function...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-292
... fis anfis model pacific ocean percentage error membership function comparison purpose artificial intelligence fuzzy logic inference system forecast calculation prediction stefanako fuzzy inference system training period time series forecasting procedure Nonstationary Prediction...
Proceedings Papers

Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-533
... in an open deep ocean, it is needed to consider maneuverability when a ship voyages at lower speed. expert system kt model simulation result speed dependent coefficient zigzag simulation ship model membership function trajectory design rudder angle coefficient hydrodynamic coefficient ship...
Proceedings Papers

Paper presented at the The Eighteenth International Offshore and Polar Engineering Conference, July 6–11, 2008
Paper Number: ISOPE-I-08-192
... revealed a large variability between early cost estimates and actual costs. The causes of the observed variability were due to risks associated with the basis and assumptions of the cost estimate. hull vessel modeling cost estimate artificial intelligence cost correlation membership function...
Proceedings Papers

Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-327
... and subjected to several careful checks and critical studies. water surface attack angle fuzzy logic fuzzy controller caudal fin derivative fish body head-tail axis control method membership function regulator suspension control buoyancy artificial intelligence control strategy diving...
Proceedings Papers

Paper presented at the The Fifteenth International Offshore and Polar Engineering Conference, June 19–24, 2005
Paper Number: ISOPE-I-05-163
... ABSTRACT This paper describes a fast on-line neuro-fuzzy controller for underwater robots of which the dynamics are highly nonlinear, coupled, and time-varying. The neuro-fuzzy controller is based on the Fuzzy Membership Function Neural Network (FMFNN) with varying learning rate. Even though...
Proceedings Papers

Paper presented at the The Fifteenth International Offshore and Polar Engineering Conference, June 19–24, 2005
Paper Number: ISOPE-I-05-233
... sets and fuzzy rules used by these systems. Genetic algorithms have proven to be a useful method for optimizing the membership functions of the fuzzy sets used by these fuzzy systems (Chen, 1998; Tang et al, 1998). Furthermore, as an optimum seeking method, genetic algorithm can avoid the local optimal...
Proceedings Papers

Paper presented at the The Thirteenth International Offshore and Polar Engineering Conference, May 25–30, 2003
Paper Number: ISOPE-I-03-014
... optimization design model upper limit maintenance time membership function artificial intelligence upstream oil & gas fuzzy optimization design flowline corrosion sectional dimension optimization problem equation optimization design offshore jacket platform design model subsea system design...
Proceedings Papers

Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-176
... of a wide range of a sea. We have implemented three modules, which include the receiver control module, the sensor control module and the propeller control module. variable vector propeller membership function sensor auv remotely operated vehicle electronic compass varivec propeller...
Proceedings Papers

Paper presented at the The Eleventh International Offshore and Polar Engineering Conference, June 17–22, 2001
Paper Number: ISOPE-I-01-421
... is presented by Kara-Zaitri (1991; 1992). coefficient membership function decision factor linguistic term fmea effect analysis fishing vessel probability expert system grey system theory fuzzy logic failure mode marine transportation standard series grey theory detectability equation...

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