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Moments

Moments. Boom. Counter balance weight. In order to understand Mechanisms better, we need to understand pivots, moments and equilibrium. Equilibrium. Pivot point Or fulcrum. When something is balanced it is said to be in equilibrium. Fulcrum. Moments.

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Moments

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  1. Moments Boom Counter balance weight In order to understand Mechanisms better, we need to understand pivots, moments and equilibrium.

  2. Equilibrium Pivot point Or fulcrum When something is balanced it is said to be in equilibrium. Fulcrum

  3. Moments The Moment of a Force is the force multiplied by the distance from the pivot point. Distance (d) Force (F) Fulcrum Moment = F x d

  4. Moments Torque may be represented as shown. Force Pivot Point Torque (turning force) = Force x Distance

  5. The Principle of Moments The Principle of Moments states, that for there to be equilibrium, the clockwise moments must equal the anti-clockwise moments. Balanced when f1xd1 = f2xd2 Clockwise Moments = F2 x d2 Anti-clockwise Moments = F1 x d1 If F2 x d2 = F1 x d1 there is equilibrium

  6. f1 d2 f2 d1 The Principle of Moments Clockwise Moments = F2 x d2 =20nx1m = 20Nm Anti-clockwise Moments = F1 x d1 = 10Nx2m = 20Nm If F2 x d2 = F1 x d1 there is equilibrium 20Nm = 20Nm, Therefore, the loaded beam is in equilibrium.

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