Mechanical Engineering :: Theory of Machine
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When the tip of a tooth undercuts the root on its mating gear, it is known as interference.
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Under logarithmic decrement, the amplitude of successive vibrations are
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The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction)
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A fixed gear having 200 teeth is in mesh with another gear having 50 teeth. The two gears are connected by an arm. The number of turns made by the smaller gear for one revolution of arm about the centre of bigger gear is
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In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is Constant, then
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A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by
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When the connection between the elements forming a pair is such that the constrained motion is not completed by itself, but by some other means, the motion is said to be a completely constrained motion,
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In gears, interference takes place when
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The ratio of maximum fluctuation of speed to the mean speed is called
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Which of the following statement is correct for involute gears?
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