Mechanical Engineering :: Theory of Machine
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The magnitude of linear velocity of a point B on a link AB relative to point A is (where ω = Angular velocity of the link AB)
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A slender shaft supported on two bearings at its ends carries a disc with an eccentricity e from the axis of rotation. The critical speed of the shaft is Nc. If the disc is replaced by a second one of same mass but mounted with an eccentricily 2 e, then the critical speed of the shaft in the second case is
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The mechanism in which two are turning pairs and two are sliding pairs, is called a
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In a reciprocating engine, usually __________ of the reciprocating masses are balanced.
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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, if N coincides with O, then
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The velocity of the belt for maximum power is (where m = Mass of the belt in kg per metre length)
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In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks)
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When there is a reduction in amplitude over every cycle of vibration, then the body is said to have
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In full depth
involute system, the smallest number of teeth in a pinion which meshes with rack without interference is
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