Mechie10
Mechanical
- Jul 26, 2004
- 38
I am considering a replacement of the OEM Harmonic Crankshaft Damper with a aftermarket damper because of the lower cost. The aftermarket company claims to meet OEM specs, but the aftermarket design is different. The center hub that attaches to the crank has less about 0.5 Kg less mass and a 5 mm larger diameter. Without knowing the details of harmonic damper design, it seems possible to design inner and out hub of the system with the OEM same frequency tuning by lowering the elastomer spring rate to compensate for the lower mass inertia. Or to keep the moment of inertia of the inner hub the same by increasing the diameter. But, there will still be less mass attached to the crankshaft. It is possible for the aftermarket damper design system to have the frequency tuning as the OEM and be an effective damper?