SM-216 | Beam Bending (Transverse) Vibrations Module

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 is forced to vibrate using a motor exciter. This motor exciter can be attached anywhere along the working length of the beam. The motor exciter supplied has the ability to have its mass increased by the addition of the calibrated masses supplied. These masses can also be attached in a stack at other points on the test beam. A damping tub, damping medium and damping discs are also supplied to give additional adjustment to the apparatus.

Learning Objectives

• Free vibration of a simply supported beam
• Forced vibration of a simply supported beam
• Natural frequency of oscillations
• Resonance
• Amplitude of vibrations
• Phase lag