about Dynamics and Vibration Laboratory

• Cam-Analysis Apparatus

  

   

  Technical Specifications:

  • Type of cam : Eccentric, tangent and circular
  • Follower type : Knife edge, roller and mushroom follower
  • Bearing type : Double groove ball bearing
  • Motor : 0.5 HP
  • Speed: 0 to 1500 rpm

  Application:

  The fundamental objectives of this experiment are: 

  • Observation of the effect of cam profile on the cam dynamics.
  • To study the displacement, velocity, and acceleration profile of cam.
  • To identify the factors this may improve the cam dynamics.
  • To find out the cam and follower behaviour at different follower movement.
  • To study the different types of cam and follower with their practical uses.
  • To find out the cam follower displacement curve at different motion.
  • To find out jump phenomenon.

  Funded by: Institute

   

• Motorized Gyroscopes Apparatus

  

   

  Technical Specifications:

  • Disc diameter : 300 mm
  • Mass of the disc : 5.42 Kg
  • Disc material : Powder coated/Nickel plated M.S
  • Mounting type : Foot mounting
  • Speed : 0 to 6000 rpm
  • 1500 rpm

  Application:

  1. To find the gyroscopic couple acting on a rotating disc  
  2. To study of two equal & opposite parallel forces, whose lines of action are different form a couple.
  3. GYROSCOPIC COUPLE: Rate of change of angular momentum will result by the application of a couple to the disc. Therefore couple applied to the disc causing precession.

  Funded by: Institute 

• Static and Dynamic Balancing Apparatus

  

   

  Technical Specifications:

  • Weights : 4 Nos
  • Speed control :  10 to 1500 rpm
  • Belt drive : ‘V’ type

  Application:

  1. To study the uses of large rotating parts – particularly vehicles. These rotating parts can create a problem. If they are not well balanced, the imbalanced centrifugal forces will create vibrations as the part rotates. This may be acceptable at low rotational velocities but can be harmful or even destructive at high velocities. Even relatively slow-moving vehicle tires need careful balancing or they will cause dangerous vibrations throughout the vehicle suspension and uneven tire wear. 
  2. Determine the difference between static and dynamic balancing and the advantages of each type.
  3. Balance a shaft by calculation or by using a graphical technique, and then to assess the accuracy of the results by setting up and running a motor driven shaft.
  4. Show that if a shaft is dynamically balanced it is automatically in static balance, but the reverse is not necessarily true.

  Funded by: Institute 

• Universal Vibration Apparatus

  

   

  Technical Specifications:

  • Disc diameter : 0.185 m
  • Mass of the pan : 1.35 Kg
  • Length of the beam : 1.04 m
  • Motor : 0.15 HP,
  • Speed: 1500 rpm.

  Application:

  To be conduct various of experiments:

  1. Simple Pendulum 
  2. Compound pendulum 
  3. Centre of Percussion
  4. Kater Pendulum 
  5. Bifilar suspension
  6. Mass-spring System
  7. Torsional Oscillations of a Single Rotor 
  8. Torsional Oscillations of a Two Rotors System
  9. Transverse Vibration of a Beam with One/More Bodies Attached 
  10. Undamped Vibration Absorber
  11. Force Vibration of a Rigid Body (Spring System with Negligible Damping)
  12. Free damped Vibration of a Rigid Body – Spring System
  13. Force damped Vibration of a Rigid Body – Spring System 

  
  

  Funded by: Institute 

• Whirling of Shaft Apparatus

  

   

  Technical Specifications:

  • Length of the shaft : 0.95 m
  • Motor : 1/6 HP
  • Speed: 6000 rpm.

  Application:

  1. To study of the Critical speed of a shaft. It is defined as the speed at which a rotating shaft will tend to vibrate violently in the transverse direction if the shaft rotates in horizontal direction. In other words, the whirling or critical speed is the speed at which resonance occurs. At certain speed, a rotating shaft has been found to exhibit excessive lateral Vibrations (transverse vibrations). The angular velocity of the shaft at which this occurs is called a critical speed or whirling speed or whipping speed. The frame will support motor, sliding block and shafts. When the gears or pulleys are mounted on a shaft the center of gravity of the mounted element does not coincide with the center line of the bearing (or) axis of the shaft. Due to this the shaft is subjected to a centrifugal force. This further increases the distance of center gravity from the axis of rotation and hence the centrifugal force increase this effect is cumulative and ultimately the shaft fails.
  2. To determine critical speed or whirling speed of a rotating shaft and to verify the value theoretically.

  Funded by: Institute