Mechanical Engineering :: Theory of Machine
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The displacement of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r1 = Minimum radius of the cam, and θ = Angle turned through by the cam)
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In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral C Q NO, the acceleration of the piston is zero when the crank OC and connecting rod PC are at right angles to each other.
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The contact ratio is the ratio of
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An exact straight line motion mechanism is a
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A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body)
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When the sleeve of a Porter governor moves downwards, the governor speed
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When one of the links of a kinematic chain is fixed, the chain is known as a
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The natural frequency of free transverse vibrations of a shaft fixed at both ends and carrying a uniformly distributed load is 0.571/δS , where δS is the static deflection of a shaft fixed at both ends and carrying a uniformly distributed load.
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When brakes are applied to all the four wheels of a moving car, the distance travelled by the car before it is brought to rest, will be
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In a steam engine, the distance by which the outer edge of the D-slide valve overlaps the steam port is called
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