Beam Bending Vibration Module

Experimental module, which fits into the Vibration Frame making up part of the Universal Vibration Apparatus. A flexible beam is supported between two end brackets which create simply supported end conditions. One end bracket allows pivoting only whilst the other allows rolling and pivoting only. One of the brackets is supported on vertical supports that can be moved depending on the beam length being used. The vertical brackets and standard length beam are both supplied.

The Beam Bending Vibration Module is forced to vibrate using a motor exciter. This motor exciter can be attached anywhere along the beam length between the brackets. The motor exciter is supplied as standard and has two eccentric masses attached directly to the motor spindle at either end. This allows high rotational speeds to be achieved. A speed sensor on the motor exciter monitors the speed of rotation of the eccentric masses and outputs Beam Bending Vibration Module.

Experimental Capabilities of Beam Bending Vibration Module

1. Free vibration of a simply supported beam
2. Forced vibration of a simply supported beam Natural frequency of oscillations
3. Resonance
4. Amplitude of vibrations
5. Phase lag

Specification of Beam Bending Vibration Module

1. To be an experimental module making up part of the universal Vibration Apparatus
2. Comprises a flexible beam supported on end brackets giving simply supported end conditions
3. Beam forced to vibrate using a exciter motor and associated masses
4. Adjustable damping can be added
5. Damping tub and medium supplied
6. Additional masses to be supplied
7. Beam displacement monitored using LVDT
8. Beam excitation frequency monitored
9. Beam excitation and displacement to be captured