Whirling of Shaft Apparatus
Whirling of Shafts apparatus shows how shafts vibrate transversely and whirl at a certain rotation frequency.
The main part is thick powder coated frame that holds a variable speed motor which turns the horizontal test shaft.
This helps engineers understand possible problems with long shafts and allow for them in their designs.
Two bearings hold the shaft, one bearing at the driven end and the other bearing at the tail end of the shaft.
Similar to a beam on two simple knife-edge supports, both bearings allow free angular shaft movement.
The tail end bearing slides in its housing to allow the shaft length to change as it whirls.
Also supplied with the equipment are extra bearings that restrict angular movement when fitted, to give fixed ends.