Thank you all for your responses,
The formula is the same as wghat I have been using.
I need to consider the problem from another angle.
The damper has a dia. 50mm B.M.S shaft in it at the moment, but is actuated from either side - i.e has a split shaft - with a Torque of 1000 N.m. We want to...
I would like some advice on shaft diameter to use, considering only twist.
A 6m long shaft, carrying a blade (8mm plate - equally each side) supported by a bearing on each end and 3 bearings spread eaqually in the middle. Width of blade is 780mm.
Torque applied = 2000 N.m. Assembly - Blade/Shaft...