scsmith
Well Known Member
dry clutch torsion springs
I have a question about the springs in a traditional auto clutch disc. Several psru vendors seem to point to these as an example of how autos dampen the torsional vibration.
But I was under the impression that these springs really only do anything at very large low-frequency torque inputs, such as rapid clutch engagement when the car is not moving. I think the spring pre-load is high enough that typical torsional vibration at n/2rev (where n is the number of cylinders) and higher harmonics of that, the springs do not flex and the clutch disc is essentially solid.
Certainly the dual-mass torsion spring flywheels do the job, but I don't think a traditional dry clutch plate does anything for TV.
Am I correct?
I have a question about the springs in a traditional auto clutch disc. Several psru vendors seem to point to these as an example of how autos dampen the torsional vibration.
But I was under the impression that these springs really only do anything at very large low-frequency torque inputs, such as rapid clutch engagement when the car is not moving. I think the spring pre-load is high enough that typical torsional vibration at n/2rev (where n is the number of cylinders) and higher harmonics of that, the springs do not flex and the clutch disc is essentially solid.
Certainly the dual-mass torsion spring flywheels do the job, but I don't think a traditional dry clutch plate does anything for TV.
Am I correct?