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TM 150.02 Free and damped torsional vibrations



  • Effect of rotating mass, torsional rigidity and damping factor on the behaviour of a rotary oscillator


Technical Description

The experimental set includes three different torsion bars and two different mass discs. An oil damper makes it possible to reduce the amplitude. The components are straightforwardly and accurately placed in slots of the frame on the vibration system TM 150 or TM 155.

Learning Objectives / Experiments
- natural frequency of torsional vibration
- effect of torsional stiffness, rotating mass and damping


[1] supplementary experiment to the universal vibration system TM 150 and TM 155
[2] 3 torsion bars 
[3] 2 weight discs
[4] adjustable ball-bearing chuck 
[5] open oil-filled damper 

Technical Data

Torsion bars made of stainless steel
- diameter: 3mm, 5mm, 6mm
- length: 800mm
Weight discs
- small: D=150mm at approx. 2.7kg
- large: D=228mm at approx. 4.8kg
Chuck: D=0,5...8,0mm

Dimensions and Weight
LxWxH: approx. 250x250x1100mm (setup)
Weight: approx. 27kg

Scope of Delivery
3 bars
3 discs
3 bearing blocks
1 cone
1 clamping device
1 damper
1 recording device
1 set of tools
1 manual

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