Mechanical Engineering :: Theory of Machine
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In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)
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The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is
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ABCD is a four bar mechanism in which AB = 310 mm and CD = 450 mm. AB and CD are both perpendicular to the fixed link AD, as shown in the below figure. If the velocity of B at this condition is v. Then the velocity of C is
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The power transmitted by a belt is maximum when the maximum tension in the belt is __________ of centrifugal tension.
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The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is
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The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called
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The interference may only be avoided if the addendum circles of the two mating gears cut the common tangent to the base circles between the points of tangency.
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The maximum efficiency of spiral gears is (where θ = Shaft angle, and φ = Friction angle)
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When the crank is at the inner dead centre, in a reciprocating steam engine, then the acceleration of the piston will be
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