The rolling of a complete ship side-ways is known as pitching of a ship.

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The pitching of a ship is assumed to take place with simple harmonic motion.

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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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The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be

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The mass of the turbine rotor of a ship is 20 tonnes and has a radius of gyration of 0.60 m. Its speed is 2000 r.p.m. The ship pitches 6° above and 6° below the horizontal position. A complete oscillation takes 30 seconds and the motion is simple harmonic. Determine Maximum angular acceleration of the ship during pitching.

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Rolling is the turning of a complete ship in a curve towards left or right, while it moves forward.

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A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be

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The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the left. The effect of gyroscopic couple on the aeroplane will be

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The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the right. The effect of gyroscopic couple on the aeroplane will be to dip the nose and raise the tail.

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The axis of precession is ____________ to the plane in which the axis of spin is going to rotate.

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When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be

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The turbine rotor of a ship has a mass of 3500 kg. It has a radius of gyration of 0.45 m and a speed of 3000 r.p.m. clockwise when looking from stern. Determine the gyroscopic couple upon the ship when the ship is pitching in a simple harmonic motion, the bow falling with its maximum velocity. The period of pitching is 40 seconds and the total angular displacement between the two extreme positions of pitching is 12 degrees.

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Pitching is the movement of a ship up and down in a vertical plane about transverse axis.

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The pitching effect of a naval-ship produces force(s) on which of the following components of the ship?

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If the movement of the ship were to occur about a vertical plane about a parallel axis then which of the following factors will be affected while pitching?

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The pitching of the ship is assumed to take place with which of the following motion?

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During upward pitching, Gyroscopic couple will tend to move the ship towards ________

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During downward pitching, Gyroscopic couple will tend to move the ship towards ________

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The mass of the turbine rotor of a ship is 20 tonnes and has a radius of gyration of 0.60 m. Its speed is 2000 r.p.m. The ship pitches 6° above and 6° below the horizontal position. A complete oscillation takes 30 seconds and the motion is simple harmonic. Determine Maximum gyroscopic couple.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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The axis of precession is parallel to axis of spin during rolling for only a selected few positions.

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The turbine rotor of a ship has a mass of 3500 kg. It has a radius of gyration of 0.45 m and a speed of 3000 r.p.m. clockwise when looking from stern. Determine the gyroscopic couple upon the ship when the ship is steering to the left on a curve of 100 m radius at a speed of 36 km/h.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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Maximum couple during pitching is given by : (ω: angular velocity of rotor & ωpmax: Maximum angular velocity of precession).

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The turbine rotor of a ship has a mass of 8 tonnes and a radius of gyration 0.6 m. It rotates at 1800 r.p.m. clockwise, when looking from the stern. Determine the gyroscopic couple, if the ship travels at 100 km/hr and steer to the left in a curve of 75 m radius.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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The rotor of a ship rotates in clockwise direction when viewed from the stern and the ship takes a left turn. The effect of the gyroscopic couple acting on it will be

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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The gyroscope couple does not cause an effect on a naval ship during which of these motions?

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Which of the following would change during rolling of a navalship?

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