Engineering Science 1022A/B/Y Lecture Notes - Lecture 14: Harmonic Oscillator, Resultant Force
1 Jan 2019
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Document Summary
Objective: reduce a system of forces and couple moments acting on a body to a simpler form by replacing it with an equivalent systems. Moving a force from a to b when both points are on the line of action of the vector, does not change the external effect. Moving a force from a to b requires creating an additional couple moment. Since this new couple moment is a free vector, it can be applied at any point p on the body. A force at is equivalent to the same force acting at plus a couple moment of the force at about. Many forces and couples into a single force/couple system. Any group of forces and couples acting on a rigid body can be reduced to a single force/couple system at a given point. Equivalent systems page 1 system at a given point.
