Section A6.3 example 1
A 1/2 HP motor operating at 1000 RPM rotates a 30 in long, 0.75 in diameter,
0.035 in thick
aluminum alloy torque tube which drives the gear mechanism for operating a wing
- the maximum shear stress in the torque tube under
full power and RPM,
- the angular deflection of the shaft at one end
relative to the other.
First, based on the maximum power and RPM the torque applied to the tube is
Note that this external torque is reacted by an internal torque of the same magnitude at
every section along the length of the tube.
Based on the above value of torque the maximum shear stress in the tube is
The resulting angular deflection (angle of twist) is determined to be
To Section A6.3
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