Torque measurement

[Gary Derian]

Torsional deflection, in radians, for a solid bar is ((L*32)/(pi*d^4))*(T/G)
where d is the diameter, T is torque and G is shear modulus.  For your axle,
I calculate 0.00267 which is 0.15 degrees.

Gary Derian <gderian at oh.verio.com>

>
> What about putting a postion sensor on both the inner and outer CV joint
(for
> front wheel drive engine) and measuring the twist in the driveshaft?
>
> My Mini has a 450mm by 25mm driveshaft.
>
> Anyone know rough calculations for torque v twist?
>
> The motor puts about 340 Nm on the ground (100Nm at the crank) in top
gear.
>
> --
> Tom Parker - tparker at geocities.com
>            - http://www.geocities.com/MotorCity/Track/8381/