Determination of the metacentric height, and thus the metacenter, of a floating pontoon.
This is by graphic analysis of the angles of tilt of the pontoon with various centers of gravity.
Features:
Many engineering applications use the Bourdon gauge.
Full and accurate experimental analysis:
Ideal for classroom demonstrations
Bench-mounted
No services required
Compact and requires minimal storage space
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 five 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 the sail.
This equipment has a pair of optimal pontoons for further experimentation. Half-circle and Vee Chine pontoons allow the student to compare the stability of different hulls.
For reduced set-up times, the sail is easily moved from one pontoon to another.
Specification/ Technical data:
This equipment is committed to a programme of continuous improvement; hence we reserve the right to alter the design and product specification without prior notice.
Dimensions:
Net: Approx. 650 mm x 450 mm x 350 mm; packed: 0.11 m3
Weight:
Nominally net: 5 kg; packed: 9 kg
Water tank:
Moulded plastic, nominally 600 mm x 400 mm x 120 mm
Clinometer Scale: ±30°
Angular tilt of pontoon:
Nominally 8° each side of the vertical centre line Adjustable sail weight: 394 g
Total weight of floating assembly:
Nominally 3.2 kg
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