Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Center of Gravity and Buoyancy

Stability - the center of gravity vs. the center of buoyancy.

Sponsored Links
  • Center of Gravity is the point in a body where the gravitational force may be taken to act
  • Center of Buoyancy is the center of gravity for the volume of water which a hull displaces

When the hull is upright the center of gravity and center of buoyancy are on the same vertical line, and the hull is

  • stable

For most hulls the center of buoyancy is below the center of gravity and the hull is said to be meta-stable.

When the hull tilts the center of gravity remains in the same position related to the hull (as long as the hull is not changed and/or the cargo is not moved). The center of buoyancy will move to fit the new center of gravity for the volume of water replaced by the hull. In the beginning the gravity force and the buoyancy force will create a

  • righting torque

that tries to move the hull back to the upright position.

If the hull is tilted to much the center of buoyancy will move to a position where the buoyancy and gravitation force starts to create a moment that work in the same direction and the hull will

  • capsize
Sponsored Links

Related Topics

Related Documents

Sponsored Links

Share

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Topics

Unit Converters

Temperature

oC
oF


Load Calculator!

Length

m
km
in
ft
yards
miles
naut miles


Load Calculator!

Area

m2
km2
in2
ft2
miles2
acres


Load Calculator!

Volume

m3
liters
in3
ft3
us gal


Load Calculator!

Weight

kgf
N
lbf


Load Calculator!

Velocity

m/s
km/h
ft/min
ft/s
mph
knots


Load Calculator!

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O


Load Calculator!

Flow

m3/s
m3/h
US gpm
cfm


Load Calculator!

3 10

This website use cookies. By continuing to browse you are agreeing to our use of cookies! Learn more