The document discusses the stability of fully and partially submerged bodies. It defines stability as a body's ability to right itself from a heeled position. It describes the center of buoyancy and gravity, and how their relationship determines if a body is in a stable, neutral, or unstable equilibrium. For fully submerged bodies, it states stability occurs when the center of gravity is below the centroid, and instability when it is above. For partially submerged or floating bodies, stability depends on the metacenter and metacenteric height.

1. STABILITY
FULLY & PARTIALLY SUBMERGED BODIES
Presentation by
Fazeel Sajid
Maaz Mahbub Khan
Muhammad Ahmad

2. Definition
Stability refers to the ability of a ship to right itself from a heeled position. A floating or submerged body is
said to be stable at its position, if it returns to that position following a small disturbance.

3. Centre Of Buoyancy And Stability
Center of gravity refers to the
mean location of the
gravitational force acting on a
body.
The Buoyancy Force act
through the Centre of Gravity
of the Displaced Fluid and is
called The Centre of Buoyancy

4. Types of
Equilibrium
• Stable: The body returns
to it's original position if
given a small angular
displacement.
• Neutral: The body
remains in a new position
if given a small angular
displacement.
• Unstable: The body heals
further over if given a
small angular
displacement.

5. The Stability Of Fully Submerged Bodies
Center of gravity below centroid Center of gravity above centroid

6. The Stability Of Partially Submerged
Bodies
(Floating Bodies)

7. METACENTRE & METECENTRIC
HEIGHT
EXPLAINED THROUGH A VIDEO

8. THANK YOU