The Experts below are selected from a list of 96 Experts worldwide ranked by ideXlab platform
Gareth James Holloway - One of the best experts on this subject based on the ideXlab platform.
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An investigation into existing survival equipment / systems and the possibility of applying current technology to a new design.
2003Co-Authors: Gareth James HollowayAbstract:The project was undertaken as it was considered that, with an ever increasing number of people taking to the water in yachts, current survival equipment was not up to the task of offering maximum safety to the crews and vessels when compared to related technological advances in other industries. To assess if there is a need for a new product, the project investigates a number of key areas. Initially the history of accidents at sea, specifically looking into the 1979 Fastnet and 1998 Sydney-Hobart races, previous accounts from sailors who have lost vessels and been stranded at sea and accident statistics. It then investigates what is currently on offer in the way of survival equipment in the marine industry and considers these against safety equipment in comparable industries. After concluding that current systems, especially liferafts, have a large number of publicised shortcomings, a new design/ concept was conceived. The design utilises current liferaft technology and using a design employed in the aeronautical industry as its basis, incorporates an inflatable collar into the hull of the vessel. This design addresses all of the identified drawbacks and provides great improvements to vessel stability, crew safety and recovery. To test the design all the data was entered into stability calculations. The results from this proved better than expected. A 1/8th scale model was created using a Whitbread 60 hull. This model was subjected to an Inclining Experiment, the results of which were compared to the theoretical results for the same model to test the accuracy of the calculations. The results from both methods were very close. This proved that the theoretical method can be used to accurately predict increases in stability. In both cases the Experiment was deemed a complete success. The latter section of the report suggests ways in which the design can be incorporated into the hull to offer maximum results, whilst requiring as little effort from the crew as possible. It then investigates how to further develop the project and lists potential issues associated with a development program. These are overcome by the recommendation of introducing the design to a company who already has experience at producing marine safety systems. It also gives recommendations to the marine industry as to how best to improve the regulations for marine safety equipment so that a universal standard can be rapidly adopted.
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an investigation into existing survival equipment systems and the possibility of applying current technology to a new design
2003Co-Authors: Gareth James HollowayAbstract:The project was undertaken as it was considered that, with an ever increasing number of people taking to the water in yachts, current survival equipment was not up to the task of offering maximum safety to the crews and vessels when compared to related technological advances in other industries. To assess if there is a need for a new product, the project investigates a number of key areas. Initially the history of accidents at sea, specifically looking into the 1979 Fastnet and 1998 Sydney-Hobart races, previous accounts from sailors who have lost vessels and been stranded at sea and accident statistics. It then investigates what is currently on offer in the way of survival equipment in the marine industry and considers these against safety equipment in comparable industries. After concluding that current systems, especially liferafts, have a large number of publicised shortcomings, a new design/ concept was conceived. The design utilises current liferaft technology and using a design employed in the aeronautical industry as its basis, incorporates an inflatable collar into the hull of the vessel. This design addresses all of the identified drawbacks and provides great improvements to vessel stability, crew safety and recovery. To test the design all the data was entered into stability calculations. The results from this proved better than expected. A 1/8th scale model was created using a Whitbread 60 hull. This model was subjected to an Inclining Experiment, the results of which were compared to the theoretical results for the same model to test the accuracy of the calculations. The results from both methods were very close. This proved that the theoretical method can be used to accurately predict increases in stability. In both cases the Experiment was deemed a complete success. The latter section of the report suggests ways in which the design can be incorporated into the hull to offer maximum results, whilst requiring as little effort from the crew as possible. It then investigates how to further develop the project and lists potential issues associated with a development program. These are overcome by the recommendation of introducing the design to a company who already has experience at producing marine safety systems. It also gives recommendations to the marine industry as to how best to improve the regulations for marine safety equipment so that a universal standard can be rapidly adopted.
Adumene Sidum - One of the best experts on this subject based on the ideXlab platform.
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tonnes offshore work boat
2015Co-Authors: Nitonye Samson, Adumene SidumAbstract:Abstract: The design of work Boat have become very important in the world especially in the Niger Delta region of Nigeria, now that oil exploration is moving gradually from the onshore to the offshore. Hence the stability of the vessel at sea becomes critical for the safety of life and properties onboard the work boat. The design of a 2500 Tonnes offshore work boat, determination of optimal scantling for good stability characteristics, estimation of principal dimension and the analysis of the stability of the work boat in an offshore working condition was carried out. The stability characteristics of a rectangular work boat of dimension 42m x 7.5m x 5m were determined and analyzed using International codes and standards. The hydrostatic curves for the boat were plotted and used to determine the optimal values for safe operation of the work Boat. Furthermore the analysis of the stability of the entire work boat was done to ascertain the maximum load the vessel could carry not to exceed a safe value this shows the design is worth will. This was also verified using an Inclining Experiment model
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Numerical and Experimental analysis for the stability of a 2500 tonnes offshore work boat
International Journal of Applied Science and Engineering Research, 2014Co-Authors: Nitonye Samson, Adumene SidumAbstract:The design of work Boat have become very important in the world especially in the Niger Delta region of Nigeria, now that oil exploration is moving gradually from the onshore to the offshore. Hence the stability of the vessel at sea becomes critical for the safety of life and properties onboard the work boat. The design of a 2500 Tonnes offshore work boat, determination of optimal scantling for good stability characteristics, estimation of principal dimension and the analysis of the stability of the work boat in an offshore working condition was carried out. The stability characteristics of a rectangular work boat of dimension 42m x 7.5m x 5m were determined and analyzed using International codes and standards. The hydrostatic curves for the boat were plotted and used to determine the optimal values for safe operation of the work Boat. Furthermore the analysis of the stability of the entire work boat was done to ascertain the maximum load the vessel could carry not to exceed a safe value this shows the design is worth will. This was also verified using an Inclining Experiment model.
C.b. Barrass - One of the best experts on this subject based on the ideXlab platform.
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Inclining Experiment (Stability Test) Plus Fluctuations in a Ship’s Lightweight
Ship Stability for Masters and Mates, 2012Co-Authors: C.b. Barrass, D.r. DerrettAbstract:Before the stability of a ship in any particular condition of loading can be determined, the initial conditions must be known. This means knowing the ship’s lightweight, the VCG or KG at this lightweight, plus the LCG for this lightweight measured from amidships. For example, when dealing with the height of the center of gravity above the keel, the initial position of the center of gravity must be known before the final KG can be found. It is in order to find the KG for the light condition that the Inclining Experiment is performed. Fluctuations in a ship’s lightweight over a period of time are also discussed here.
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Inclining Experiment stability test plus fluctuations in a ship s lightweight
Ship Stability for Masters and Mates (Seventh Edition), 2012Co-Authors: C.b. Barrass, D.r. DerrettAbstract:Before the stability of a ship in any particular condition of loading can be determined, the initial conditions must be known. This means knowing the ship’s lightweight, the VCG or KG at this lightweight, plus the LCG for this lightweight measured from amidships. For example, when dealing with the height of the center of gravity above the keel, the initial position of the center of gravity must be known before the final KG can be found. It is in order to find the KG for the light condition that the Inclining Experiment is performed. Fluctuations in a ship’s lightweight over a period of time are also discussed here.
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The Trim and Stability book
Ship Stability for Masters and Mates, 2012Co-Authors: C.b. Barrass, D.r. DerrettAbstract:When a new ship is nearing completion, a trim and stability book is produced by the shipbuilder and presented to the ship-owner. Shipboard officers use this book for the day to day operation of the vessel. The trim and stability book contains the technical data related to the vessel, including general particulars of the ship and general arrangement plan, Inclining Experiment report and its results, cross curves of stability, deadweight scale data, hydrostatic curves, and example conditions of loading. The results and graphs can also be obtained by using computer packages supplied to the ships. Each time a ship is loaded or discharged, the computer gives a printout of all the stability information required by the master or mate.
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The Inclining Experiment plus fluctuations in a ship's lightweight
Ship Stability for Masters and Mates, 2006Co-Authors: C.b. Barrass, D.r. DerrettAbstract:This chapter discusses the Inclining Experiment in order to find KG for the light condition. The Experiment is carried out by the builders when the ship is as near to completion as possible—that is, as near to the light condition as possible. The ship is forcibly inclined by shifting weights a fixed distance across the deck. The chapter further discusses the fluctuations in a ship's lightweight over a period of time. Lightweight is made up of the steel weight plus the wood and outfit weight plus the machinery weight. The lightweight of a ship is the weight of the ship when completely empty. There will be no deadweight items on board. A ship becomes heavier as it gets older. It has been documented that the lightweight of a vessel can amount to an average addition of 0.5% of the lightweight for each year of the ship's life.
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Chapter 46 – The Trim and Stability book
Ship Stability for Masters and Mates, 2006Co-Authors: C.b. BarrassAbstract:Publisher Summary When a new ship is nearing completion, a trim and stability book is produced by the shipbuilder and presented to the ship-owner. Shipboard officers use this book for the day to day operation of the vessel. The trim and stability book contains the technical data related to the vessel, including general particulars of the ship and general arrangement plan, Inclining Experiment report and its results, cross curves of stability, deadweight scale data, hydrostatic curves, and example conditions of loading. The results and graphs can also be obtained by using computer packages supplied to the ships. Each time a ship is loaded or discharged, the computer gives a printout of all the stability information required by the master or mate.
D.r. Derrett - One of the best experts on this subject based on the ideXlab platform.
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Inclining Experiment (Stability Test) Plus Fluctuations in a Ship’s Lightweight
Ship Stability for Masters and Mates, 2012Co-Authors: C.b. Barrass, D.r. DerrettAbstract:Before the stability of a ship in any particular condition of loading can be determined, the initial conditions must be known. This means knowing the ship’s lightweight, the VCG or KG at this lightweight, plus the LCG for this lightweight measured from amidships. For example, when dealing with the height of the center of gravity above the keel, the initial position of the center of gravity must be known before the final KG can be found. It is in order to find the KG for the light condition that the Inclining Experiment is performed. Fluctuations in a ship’s lightweight over a period of time are also discussed here.
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Inclining Experiment stability test plus fluctuations in a ship s lightweight
Ship Stability for Masters and Mates (Seventh Edition), 2012Co-Authors: C.b. Barrass, D.r. DerrettAbstract:Before the stability of a ship in any particular condition of loading can be determined, the initial conditions must be known. This means knowing the ship’s lightweight, the VCG or KG at this lightweight, plus the LCG for this lightweight measured from amidships. For example, when dealing with the height of the center of gravity above the keel, the initial position of the center of gravity must be known before the final KG can be found. It is in order to find the KG for the light condition that the Inclining Experiment is performed. Fluctuations in a ship’s lightweight over a period of time are also discussed here.
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The Trim and Stability book
Ship Stability for Masters and Mates, 2012Co-Authors: C.b. Barrass, D.r. DerrettAbstract:When a new ship is nearing completion, a trim and stability book is produced by the shipbuilder and presented to the ship-owner. Shipboard officers use this book for the day to day operation of the vessel. The trim and stability book contains the technical data related to the vessel, including general particulars of the ship and general arrangement plan, Inclining Experiment report and its results, cross curves of stability, deadweight scale data, hydrostatic curves, and example conditions of loading. The results and graphs can also be obtained by using computer packages supplied to the ships. Each time a ship is loaded or discharged, the computer gives a printout of all the stability information required by the master or mate.
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The Inclining Experiment plus fluctuations in a ship's lightweight
Ship Stability for Masters and Mates, 2006Co-Authors: C.b. Barrass, D.r. DerrettAbstract:This chapter discusses the Inclining Experiment in order to find KG for the light condition. The Experiment is carried out by the builders when the ship is as near to completion as possible—that is, as near to the light condition as possible. The ship is forcibly inclined by shifting weights a fixed distance across the deck. The chapter further discusses the fluctuations in a ship's lightweight over a period of time. Lightweight is made up of the steel weight plus the wood and outfit weight plus the machinery weight. The lightweight of a ship is the weight of the ship when completely empty. There will be no deadweight items on board. A ship becomes heavier as it gets older. It has been documented that the lightweight of a vessel can amount to an average addition of 0.5% of the lightweight for each year of the ship's life.
Nitonye Samson - One of the best experts on this subject based on the ideXlab platform.
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tonnes offshore work boat
2015Co-Authors: Nitonye Samson, Adumene SidumAbstract:Abstract: The design of work Boat have become very important in the world especially in the Niger Delta region of Nigeria, now that oil exploration is moving gradually from the onshore to the offshore. Hence the stability of the vessel at sea becomes critical for the safety of life and properties onboard the work boat. The design of a 2500 Tonnes offshore work boat, determination of optimal scantling for good stability characteristics, estimation of principal dimension and the analysis of the stability of the work boat in an offshore working condition was carried out. The stability characteristics of a rectangular work boat of dimension 42m x 7.5m x 5m were determined and analyzed using International codes and standards. The hydrostatic curves for the boat were plotted and used to determine the optimal values for safe operation of the work Boat. Furthermore the analysis of the stability of the entire work boat was done to ascertain the maximum load the vessel could carry not to exceed a safe value this shows the design is worth will. This was also verified using an Inclining Experiment model
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Numerical and Experimental analysis for the stability of a 2500 tonnes offshore work boat
International Journal of Applied Science and Engineering Research, 2014Co-Authors: Nitonye Samson, Adumene SidumAbstract:The design of work Boat have become very important in the world especially in the Niger Delta region of Nigeria, now that oil exploration is moving gradually from the onshore to the offshore. Hence the stability of the vessel at sea becomes critical for the safety of life and properties onboard the work boat. The design of a 2500 Tonnes offshore work boat, determination of optimal scantling for good stability characteristics, estimation of principal dimension and the analysis of the stability of the work boat in an offshore working condition was carried out. The stability characteristics of a rectangular work boat of dimension 42m x 7.5m x 5m were determined and analyzed using International codes and standards. The hydrostatic curves for the boat were plotted and used to determine the optimal values for safe operation of the work Boat. Furthermore the analysis of the stability of the entire work boat was done to ascertain the maximum load the vessel could carry not to exceed a safe value this shows the design is worth will. This was also verified using an Inclining Experiment model.
