The Metacentric height of the ship plays an important role in setting the loading capacity and stability of the ship. The Initial metacentric height of the ship is determined by an inclining experiment after the ship is completely built. When a vertical line is drawn from B and B1, they intersect at a point known as metacentre of the ship. The metacentric height is the distance between the centre of gravity and metacentre of the ship i. GM and it is used to calculate the stability of the ship. To conduct this experiment, a special tool known as stabilograph is required.
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A bench mounting apparatus to determine the stability of a pontoon with its centre of gravity metacentric height and metacentre at various heights.
Determination and analysis of the stability of floating bodies, such as ships, rafts and pontoons, is important throughout many branches of engineering. This experiment allows students to determine the stability of a pontoon with its centre of gravity at various heights. They can then compare this to predictions calculated from theory. The experiment consists of a rectangular pontoon floating in water.
Plastic materials and corrosion-resistant finishes throughout the equipment give the fullest possible protection against corrosion. The pontoon has a plastic sail with fi ve rows of slots. These rows are at equally spaced heights on the sail. The slots are equally spaced around the centre line. To change the centre of gravity and the tilt list angle of the pontoon, students fit an adjustable weight into one of the slots.
A clinometer pointer hangs at the top of the sail where it can freely rotate. Along with an inclusive scale on the sail the tilt angle is clearly indicated.
Students can easily trim the pontoon using a small weight attached to he sail. Self contained mobile unit for many experiments in fluid mechanics. Visit Industrial Site. Add to My Quote.
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METACENTRIC HEIGHT AND STABILITY
The metacentric height GM is a measurement of the initial static stability of a floating body. It is calculated as the distance between the centre of gravity of a ship and its metacentre. A larger metacentric height implies greater initial stability against overturning. The metacentric height also influences the natural period of rolling of a hull, with very large metacentric heights being associated with shorter periods of roll which are uncomfortable for passengers.
Inclining Experiment- Determining Metacentric height of the ship
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