Mechanical Engineering :: Theory of Machine
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In vibration isolation system, if ω/ωn > 2, then for all values of damping factor, the trans-missibility (i.e. the ratio of the force transmitted to the force applied) will be less than unity.
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Two pulleys of radii r1 and r2 and at distance x apart are connected by means of a cross belt drive. The length of the belt is
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The acceleration of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by
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For the brake to be self locking, the force P at C shown in the below figure, should
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In a four bar chain or quadric cycle chain
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A single degree of freedom system is given by
, with usual notations. It represents -
In a Hartnell governor, the lift of the sleeve is given by (where r1 and r2 = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever)
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When a mechanism is required to transmit power or to do some particular type of work, then it becomes a machine.
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The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is
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