How to Calculate Overturning Moment

How to Calculate Overturning Moment
••• prachanart/iStock/GettyImages

The overturning moment of an object is the moment of energy capable of upsetting the object; that is, the point where it has been subjected to enough disturbance that it ceases to be stable, it overturns, capsizes, collapses, topples or otherwise incurs an unwanted change in its circumstances, possibly resulting in damage and certainly resulting in inconvenience.

    Weigh the test item and the test fixture to which it is mounted. The weight can be recorded in either conventional or metric measure.

    Determine the center of gravity of the test item. Measure the distance from the bottom of the item to the center of gravity with the tape measure.

    Calculate the root mean square acceleration of the test item.

    Multiply the Grms by the height of the center of gravity. Multiply the result by the weight of the test item and the test fixture to which it is mounted. The result is the overturning moment (G x CG x 1W = OM)

    Things You'll Need

    • Scientific calculator
    • Scale
    • Tape measure


    • A calculator that can accept raw data to calculate the root-mean-square is preferred for this work and simplifies the calculations immensely.

Related Articles

How to Calculate Load Force
How to Find Mass in Weight
How to Calculate Pendulum Force
How to Calculate Kinetic Energy
How to Calculate the Mass of a Solid
How to Calculate the Velocity of an Object Dropped...
How to Calculate How Long it Takes an Object to Fall
How to Convert Horsepower to Thrust
How to Find and Calculate the Weight of a Sphere
How to Calculate the Weight of an Object
How to Determine the Strength of an Electromagnet
How to Calculate Distance Angle
How to Calculate Frictional Torque
How to Calculate Center of Mass
How to Calculate Weight Per Linear Foot
History of the Pendulum
How to Calculate Static Head
How to Calculate Weight of Plastic
How to Calculate a Point Load