Mechanical Engineering :: Theory of Machine
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The gears are termed as medium velocity gears, if their peripheral velocity is
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For a twin cylinder V-engine, the crank positions for primary reverse cranks and secondary direct cranks are shown in the below figure. The engine is a
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The frequency of damped vibrations with viscous damping is __________ the frequency of undamped vibrations.
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Whitworth quick return motion mechanism consists of three turning pairs and one sliding pair.
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The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a right turn. The effect of gyroscopic couple acting on it will be to raise the stern and lower the bow.
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When a particle moves round the circumference of a circle of radius r with ω rad/s, then its maximum acceleration is ω2r.
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The static friction
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A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of
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The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to
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