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WHIRLING OF SHAFT APPARATUS
Whirling of Shafts apparatus shows how shafts vibrate transversely and whirl at a certain rotation frequency. This helps engineers understand possible problems with long shafts and allow for them in their designs.
The main part thick powder coated frame that hold a variable speed motor which turns the horizontal test shaft. Two bearings hold the shaft, one bearing at the driven end and the other bearing at the tail end of the shaft. The tail end bearing slides in its housing to allow the shaft length to change as it whirls. Similar to a beam on two simple knife-edge supports, both bearings allow free angular shaft movement (free ends condition). Also supplied with the equipment are extra bearings that restrict angular movement when fitted, to give fixed ends.
The apparatus is a set of test shafts of different length and diameter to show how these properties affect whirling. Also supplied is a set of weights to show how concentrated loads affect whirling. One weight has an extra hole to make it an eccentric load.
6. Detailed Technical Manual and On-site Training