Metacentric Height Apparatus Manufacturer,Supplier and Exporter in India
.png)
Product Code : SCL-CELE-14007
This apparatus is a laboratory-scale unit used to study the
stability of a floating body (pontoon) and to experimentally determine its metacentric
height (GM). This height is a critical measure of a vessel's initial
stability.
1. Key Components and Design
The setup involves a floating pontoon, a measuring system for
tilt, and a tank.
- Pontoon: The
floating model, sized 300 x 300 mm (approx.).
- It
features a Horizontal Guide Bar for a sliding weight.
Moving this weight creates a controlled heeling (tilting) moment.
- Removable
Strips are supplied to change the total weight
(displacement) of the model.
- Water
Tank: The tank holds the water in which the pontoon floats.
- Size: 550
x 500 x 400 mm (approx.).
- Front
Window: Made of Glass/Perspex (transparent material) to
allow observation of the pontoon's stability and trim.
- Tilt
Measurement System:
- The
angle of tilt is measured using a pendulum (a weight suspended to
a long pointer).
- The
pointer moves across a graduated arc to give a direct reading of
the angle of tilt.
- The
system includes a moveable hanger and a set of weights.
2. Experimental Procedure and Purpose
The experiment uses the "inclining experiment"
method to calculate the metacentric height (GM).
- Controlled
Tilting: A known weight (w) is moved a measured distance (x)
across the pontoon, creating a known heeling moment.
- Angle
Measurement: The resulting angle of tilt (theta) is
measured using the pendulum and graduated arc.
- Calculation: The
metacentric height (GM) is calculated using the relationship: GM = (w * x)
/ (W * tangent(theta)), where W is the total weight (displacement) of the
pontoon.
- Purpose: To
study how the metacentric height (and thus, stability) changes with displacement
(by adding/removing strips) and centre of gravity (CG) position.
.png)
.jpg)
.png)
.png)
.jpg)