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Papers by Kazuhiko Hasegawa

Research paper thumbnail of Bridge Resource Simulator : A New Tool for Ship Accident Analysis

日本船舶海洋工学会講演会論文集, May 1, 2013

Research paper thumbnail of On the Instability Criterion of the Autopilot Steering of Ships (1 st Report)

Journal of the Society of Naval Architects of Japan, 1980

Research paper thumbnail of 一軸二舵船の舵に取り付けた水平フィンの設計について

Journal of the Japan Society of Naval Architects and Ocean Engineers, 2012

Research paper thumbnail of Passenger Ferry Accidents in Bangladesh: Design and Socio-economic Aspects

Page 1. Last Update - 9 March 2007 Passenger Ferry Accidents in Bangladesh: Design and Socio-econ... more Page 1. Last Update - 9 March 2007 Passenger Ferry Accidents in Bangladesh: Design and Socio-economic Aspects Iqbal, Kho Shahriar1-1, Hasegawa, Kazuhiko , Bulian, Gabriele1, , Karim, Md. Mashud , Awal, Zobair Ibn 4 ...

Research paper thumbnail of Artificial Neural Network Application for Parameter Prediction of Heat Induced Distortion

Heat induced distortion has been widely studied over the years, in order to provide reliable resu... more Heat induced distortion has been widely studied over the years, in order to provide reliable results, thermal elastic-plastic FEM analysis have been used to estimate the distortions produced by the heat source. However this type of analysis often involves long computational time and requires high degree of technical knowledge by the user, moreover it's mainly performed to specific regions that limit the scope of the analysis. In order to provide a tool for the prediction of the line heating phenomena, an artificial neural network (ANN) is used. ANN is a powerful tool to predict complex phenomena, and in addition, it is very attractive because of the relatively modest hardware requirements and fast computational time. In this paper, parameter prediction for the heat induced distortion as an inverse problem is performed by ANN, using, the inherent deformation from a gas heating FEM analysis and their heating conditions as the training data. Exploratory analysis of the data and the model were performed to accurately predict the heating conditions. The prediction of the necessary heating conditions to generate an arbitrary deformation in the plate is a step forward in the automation of the line heating forming process. The possibility of predicting arbitrary heat induced distortion problem by an ANN model is shown.

Research paper thumbnail of ESTIMATING THE AMOUNT OF SHIP RECYCLING ACTIVITY USING REMOTE SENSING APPLICATION

The Advanced Land Observing Satellite (ALOS) was launched for earth observation and there are mor... more The Advanced Land Observing Satellite (ALOS) was launched for earth observation and there are more than 6 million scenes of archives including coastal areas during period of five years. The wealth of satellite imagery is noticeable for investigating monitoring methods such as ship detection in wide ocean area. Especially, it is useful way to estimate past behaviour from satellite imagery compared to reference data. We collected satellite imagery and analysis breaking process in ship breaking yards between year 2009 and 2011. Comparing the number of recycling ships by satellite imagery to the total number from world statistics is well understanding capacity of each country. In this study, Remote Sensing Application has been discussed in order to assess the potential to be used for economic activities such as ship recycling. It was used to evaluate the performance of ship recycling monitoring in wide coastal area by Satellite imagery. Additionally, an approach for recognizing ships by SAR imagery regardless of weather conditions is presented.

Research paper thumbnail of Investigation of Korean Ferry " Sewol " Incident by Free-running Experiments

Research paper thumbnail of Consistently Trained Artificial Neural Network for Automatic Ship Berthing Control

Research paper thumbnail of NUMERICAL PREDICTION OF FLOW FIELD AROUND A SHIP DRIFTING WITH VARIOUS ANGLES NUMERICAL PREDICTION OF FLOW FIELD AROUND A SHIP DRIFTING WITH VARIOUS ANGLES

, currently is affiliated to the same laboratory as a Ph.D. candidate (Last year). Research work ... more , currently is affiliated to the same laboratory as a Ph.D. candidate (Last year). Research work is related to the implementation of computational fluid dynamics in the prediction of manoeuvring characteristics of ships.

Research paper thumbnail of Technology Reports of The Osaka University

Research paper thumbnail of Comparison of Land and Marine Transportation System from the View Point of Life Cycle Impact Assessment

Research paper thumbnail of 船舶の AIS シミュレータ

Research paper thumbnail of Comparison of Environmental Performance and Economical Benefit of Land and Marine Transportation System: comparison with three different valuation approaches

Research paper thumbnail of Comparison of Environmental Performance and Economical Benefit of Land and Marine Transportation System-Validation of LCIA with AHP Method

Research paper thumbnail of A Study on Automatic Ship Berthing Using Parallel Neural Controller (2nd Report)-Motion Identification Considering Lateral Speed and Angular Velocity to cope with Disturbances

Research paper thumbnail of 操船シミュレータに導入された自動避航操船機能の輻輳海域への適用

Research paper thumbnail of JAVA-BASED SIMULATION TOOL FOR SHIP MANOEUVRING

… control of marine craft (MCMC'97) …, 1997

Research paper thumbnail of On the Unusual Phenomena in Manoeuvrability of Ships

... 74 Kuniji KOSE, Kazuhiko HASEGAWA and Masatsugu YOSHIKAWA It was not so clear but the lateral... more ... 74 Kuniji KOSE, Kazuhiko HASEGAWA and Masatsugu YOSHIKAWA It was not so clear but the lateral flow crossing the clearance above the ... Kashiwadani et a/.9), however, pointed out the relation between breakline-type unusual force and bilge vortices of blunt stern, so we ...

Research paper thumbnail of Artificial neural network based automatic ship berthing combining PD controlled side thrusters — A combined controller for final approaching to berth

2014 13th International Conference on Control Automation Robotics & Vision (ICARCV), 2014

ABSTRACT Manoeuvring ship during berthing has always required vast experience, skill and knowledg... more ABSTRACT Manoeuvring ship during berthing has always required vast experience, skill and knowledge to provide desired necessary actions. Presence of environmental disturbances as well as decreased manoeuvrability in low speed often makes the whole procedure so sophisticated that even slight mistake may results catastrophic disaster. By knowing the fact that Artificial Neural Network (ANN) has the ability to replicate human brains and good enough for controlling such multi-input multi-out nonlinear system, at the beginning of this research, consistent teaching data are created using Non Linear Programing (NPL) method and a new concept named ‘virtual window’ is introduced. Later on, considering gust wind disturbances, two separate multilayer feed forward networks are trained using back propagation technique for command rudder and propeller revolution output. After being successful in simulation works, real time berthing experiments are carried out for Esso Osaka 3-m model where the ship is planned to successfully stop within a distance of 1.5L from actual pier to ensure safety. Finally, as a current status, PD controlled side thrusters are included in order to shake hand with current controller to align the ship with pier considering wind up to 1.5 m/s for model ship.

Research paper thumbnail of The Manoeuvring Committee

Research paper thumbnail of Bridge Resource Simulator : A New Tool for Ship Accident Analysis

日本船舶海洋工学会講演会論文集, May 1, 2013

Research paper thumbnail of On the Instability Criterion of the Autopilot Steering of Ships (1 st Report)

Journal of the Society of Naval Architects of Japan, 1980

Research paper thumbnail of 一軸二舵船の舵に取り付けた水平フィンの設計について

Journal of the Japan Society of Naval Architects and Ocean Engineers, 2012

Research paper thumbnail of Passenger Ferry Accidents in Bangladesh: Design and Socio-economic Aspects

Page 1. Last Update - 9 March 2007 Passenger Ferry Accidents in Bangladesh: Design and Socio-econ... more Page 1. Last Update - 9 March 2007 Passenger Ferry Accidents in Bangladesh: Design and Socio-economic Aspects Iqbal, Kho Shahriar1-1, Hasegawa, Kazuhiko , Bulian, Gabriele1, , Karim, Md. Mashud , Awal, Zobair Ibn 4 ...

Research paper thumbnail of Artificial Neural Network Application for Parameter Prediction of Heat Induced Distortion

Heat induced distortion has been widely studied over the years, in order to provide reliable resu... more Heat induced distortion has been widely studied over the years, in order to provide reliable results, thermal elastic-plastic FEM analysis have been used to estimate the distortions produced by the heat source. However this type of analysis often involves long computational time and requires high degree of technical knowledge by the user, moreover it's mainly performed to specific regions that limit the scope of the analysis. In order to provide a tool for the prediction of the line heating phenomena, an artificial neural network (ANN) is used. ANN is a powerful tool to predict complex phenomena, and in addition, it is very attractive because of the relatively modest hardware requirements and fast computational time. In this paper, parameter prediction for the heat induced distortion as an inverse problem is performed by ANN, using, the inherent deformation from a gas heating FEM analysis and their heating conditions as the training data. Exploratory analysis of the data and the model were performed to accurately predict the heating conditions. The prediction of the necessary heating conditions to generate an arbitrary deformation in the plate is a step forward in the automation of the line heating forming process. The possibility of predicting arbitrary heat induced distortion problem by an ANN model is shown.

Research paper thumbnail of ESTIMATING THE AMOUNT OF SHIP RECYCLING ACTIVITY USING REMOTE SENSING APPLICATION

The Advanced Land Observing Satellite (ALOS) was launched for earth observation and there are mor... more The Advanced Land Observing Satellite (ALOS) was launched for earth observation and there are more than 6 million scenes of archives including coastal areas during period of five years. The wealth of satellite imagery is noticeable for investigating monitoring methods such as ship detection in wide ocean area. Especially, it is useful way to estimate past behaviour from satellite imagery compared to reference data. We collected satellite imagery and analysis breaking process in ship breaking yards between year 2009 and 2011. Comparing the number of recycling ships by satellite imagery to the total number from world statistics is well understanding capacity of each country. In this study, Remote Sensing Application has been discussed in order to assess the potential to be used for economic activities such as ship recycling. It was used to evaluate the performance of ship recycling monitoring in wide coastal area by Satellite imagery. Additionally, an approach for recognizing ships by SAR imagery regardless of weather conditions is presented.

Research paper thumbnail of Investigation of Korean Ferry " Sewol " Incident by Free-running Experiments

Research paper thumbnail of Consistently Trained Artificial Neural Network for Automatic Ship Berthing Control

Research paper thumbnail of NUMERICAL PREDICTION OF FLOW FIELD AROUND A SHIP DRIFTING WITH VARIOUS ANGLES NUMERICAL PREDICTION OF FLOW FIELD AROUND A SHIP DRIFTING WITH VARIOUS ANGLES

, currently is affiliated to the same laboratory as a Ph.D. candidate (Last year). Research work ... more , currently is affiliated to the same laboratory as a Ph.D. candidate (Last year). Research work is related to the implementation of computational fluid dynamics in the prediction of manoeuvring characteristics of ships.

Research paper thumbnail of Technology Reports of The Osaka University

Research paper thumbnail of Comparison of Land and Marine Transportation System from the View Point of Life Cycle Impact Assessment

Research paper thumbnail of 船舶の AIS シミュレータ

Research paper thumbnail of Comparison of Environmental Performance and Economical Benefit of Land and Marine Transportation System: comparison with three different valuation approaches

Research paper thumbnail of Comparison of Environmental Performance and Economical Benefit of Land and Marine Transportation System-Validation of LCIA with AHP Method

Research paper thumbnail of A Study on Automatic Ship Berthing Using Parallel Neural Controller (2nd Report)-Motion Identification Considering Lateral Speed and Angular Velocity to cope with Disturbances

Research paper thumbnail of 操船シミュレータに導入された自動避航操船機能の輻輳海域への適用

Research paper thumbnail of JAVA-BASED SIMULATION TOOL FOR SHIP MANOEUVRING

… control of marine craft (MCMC'97) …, 1997

Research paper thumbnail of On the Unusual Phenomena in Manoeuvrability of Ships

... 74 Kuniji KOSE, Kazuhiko HASEGAWA and Masatsugu YOSHIKAWA It was not so clear but the lateral... more ... 74 Kuniji KOSE, Kazuhiko HASEGAWA and Masatsugu YOSHIKAWA It was not so clear but the lateral flow crossing the clearance above the ... Kashiwadani et a/.9), however, pointed out the relation between breakline-type unusual force and bilge vortices of blunt stern, so we ...

Research paper thumbnail of Artificial neural network based automatic ship berthing combining PD controlled side thrusters — A combined controller for final approaching to berth

2014 13th International Conference on Control Automation Robotics & Vision (ICARCV), 2014

ABSTRACT Manoeuvring ship during berthing has always required vast experience, skill and knowledg... more ABSTRACT Manoeuvring ship during berthing has always required vast experience, skill and knowledge to provide desired necessary actions. Presence of environmental disturbances as well as decreased manoeuvrability in low speed often makes the whole procedure so sophisticated that even slight mistake may results catastrophic disaster. By knowing the fact that Artificial Neural Network (ANN) has the ability to replicate human brains and good enough for controlling such multi-input multi-out nonlinear system, at the beginning of this research, consistent teaching data are created using Non Linear Programing (NPL) method and a new concept named ‘virtual window’ is introduced. Later on, considering gust wind disturbances, two separate multilayer feed forward networks are trained using back propagation technique for command rudder and propeller revolution output. After being successful in simulation works, real time berthing experiments are carried out for Esso Osaka 3-m model where the ship is planned to successfully stop within a distance of 1.5L from actual pier to ensure safety. Finally, as a current status, PD controlled side thrusters are included in order to shake hand with current controller to align the ship with pier considering wind up to 1.5 m/s for model ship.

Research paper thumbnail of The Manoeuvring Committee