GYROSCOPIC EFFECTSGyroscopic torque and its effects

Gyroscopic torqueIf the axis of spinning or rotating body is given an angular

velocity about an axis perpendicular to the axis of spin, which results in the angular acceleration about the third perpendicular axis.

The torque that is required to produce this effect is called gyroscopic torque.

.

Cont.…

acts similar to the centripetal and centrifugal forces on rotating body.

And the effect produced by this reactive couple is called gyroscopic effect.

Aeroplanes,ships,automobiles etc. having rotating parts as wheels or rotors experience this effect

acts similar to the centripetal and centrifugal forces on rotating body.

And the effect produced by this reactive couple is called gyroscopic effect.

And Gyroscope , is a spinning body is which is free to move in other directions under the action of external forces

Gyroscopic effects are on…..Any system having rotating parts as wheels or rotors will experience this effect a few are……………Aero planesShipsAutomobiles

Gyroscopic effect in carsMost of the gyroscopes mass should be as far away from

the center as possible. This often results in a disc with a large heavy rim. When the gyroscope isn't rotating it behaves like any other object, however when the gyroscope is spun on its axis at high speed it resists movements in certain directions.

Gyroscopic PrecessionWhen the gyroscope is spinning it can

contain large amounts of stored energy. Because of the forces when the gyroscope is spinning, if it is moved the gyroscope will try to 'compensate' for this movement. .

Bicycle wheel

Gyroscopic effect on naval ships

Terms used in wef naval ships motion

(a) Bow is the fore or the front end.(b) Stern or aft is the rear end.(c) Starboard is the right-hand side when looking from the stern.(d) Port is the left-hand side when looking from the stern.(e) Steering is turning on the side when viewing from the top.(f) Pitching is limited angular motion of the ship about the transverse axis.(g) Rolling is limited angular motion of the ship about the longitudinal axis.

Stability of an automobileIf the gyroscope/engine is spinning at a fairly high speed

in a clockwise direction, as seen from the back of the car and as shown in the diagram above.

When the car is turned to the right (clockwise from above) the car forcing the front end of the car down and the back end up. If the car is turned to the left then the front end of the car is forced up and the back end forced down. If the gyroscope is spinning in the opposite direction then the reverse will happen.

However if the car was moved directly upwards, downwards, forwards, back-wards or side-to-side the gyroscope would not apply any extra forces. The gyroscope only applies extra forces when the car is moved at an angle (turning left/right or when the front/back of the car is moved up/down). This effect is known as gyroscopic precession

uses 1.The Hubble Space Telescope is steadily orientated to view the stars using gyroscopes, Hubble actually uses three gyroscopes to orientate itself. because the simple reason is rockets emits pollution which hinders the telescopes observations. 2.a gyroscope reacts to conserve momentum is manipulated to stabilize ships. A gyroscope is kept constantly spinning using air jets. When the ship tilts due to ocean waves, the angle by which the ship has been displaced can accurately be measured using magnetic induction. Using this information the ships stabilisers then alter the orientation of the ship.

Uses of gyroscope

Science demonstrationsComputer pointing devicesRacing carsMotor bikes Spinning toysGyrocompassesVirtual realityMonorail trainsShip stabilisers etc.