SD-4.14 - Torsional Oscillations Apparatus

The Torsional Oscillations apparatus is intended for use in either the classroom or the laboratory and may be used to illustrate and investigate the torsional oscillations of single rotor, multi-rotor and geared systems.

The apparatus consists basically of a rigid frame carrying bearing cells, helical springs to simulate long flexible shafts and discs of varying mass moment of inertias. Suitable gears of various sizes are also provided.

The natural frequencies are of a low order and may be counted, a line drawn axially on the spring serves to illustrate the elastic line and facilitates the experimental location of the nodes.

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