With the combinations of cams and followers provided the following tests can be conducted. 1) Plotting and analysis of the displacement Vs angle ( curve. 2) The velocities and accelerations of the follower may be derived and hence inertia
forces plotted Over the whole lift period. The condition of follower bounce can clearly
be shown by carrying out theoretical calculations and graphs from X curve. 3) Follower bounce can be observed by using a stroboscope (optional). 4) Test can be repeated by changing parameters like various compression springs
Follower weights and Cam speeds.
The formula relating to the parameters at the point of bounce is

w = Angular velocity of cam shaft.
S= Spring force.
W= Follower weights.
R= Lift of cam.

5) To study the effect of follower weights (W) on the speed of bounce. 6) To study the effect of initial spring compression on the speed of bounce.

Universal Vibration Test Rig ( 11 Experiments ) .( V I B 02 )

RANGE OF EXPERIMENTS.

1) Simple Pendulam 2) Compound Pendulam 3) Bifilar Suspension for determination of M.I. 4) Spring mass System with damped vibrations 5) Spring mass System with undamped vibrations. 6) Equivalent Spring Mass System. 7) Torsional Vibrations Single Rotor. 8) Torsional Vibrations Two Rotor. 9) Forced Vibrations Lateral. 10) Single rotor Viscous damping. 11) Dunkerly's System.

Universal Vibration Test Rig ( Modular Type ) .( V I B 03 )

RANGE OF EXPERIMENTS.

1) Display of the various modes of whirl for a range of shafts with
(a) Both ends directionally free.
(b) One end fixed and the other free. 2) Modes of vibration can be studied & The Frequency can be measured in each case. 3) Experiments can be performed on various shaft diameters. ( 4mm / 6 mm / 8 mm
diameter ).

1. Display of the various modes of whirl for a range of shafts with
(a) Both ends directionally free
(b) One end fixed and the other free. 2. Modes of vibration can be studied & The Frequency can be measured in each
case. 3. Experiments can be performed on various shaft diameters.
( 4mm / 6 mm / 8 mm
diameter )

By gradually changing the speed of the discs, the number of revolutions per second at which the amplitude of forced vibrations of the structure becomes maximum, can be plotted on a recorder.
A graph of transmissibility v/s frequency ratio for different damping positions can be plotted.