Equilibrium By Devashish Pahadi. Index O Definition of Equilibrium O Conditions for Equilibrium O Principle of Moments O Couple.

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Presentation transcript:

Equilibrium By Devashish Pahadi

Index O Definition of Equilibrium O Conditions for Equilibrium O Principle of Moments O Couple

What is Equilibrium? O Equilibrium is defined as the state of a body when it is at rest or in a non-accelerated motion when all the resultant force acting on it are zero and also when the sum of all torques about an axis are zero.

Conditions for Equilibrium O The resultant forces acting on a body must be equal to zero. O The resultant moment of forces acting on a body, in all points must be zero.

Principles of Moments O When a body is in equilibrium, the sum of all anticlockwise moments of any points must be the same as the sum of all clockwise moments of the point.

Couple O When two parallel forces which are equal and opposite are not acting on the same line, a couple is formed. O The moment of couple is equal to the product of either force and the perpendicular distance between the line of action of both the forces.

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