Torsional coupling with two displacement-dependent damping...

Details Torsional coupling with two displacement-dependent damping... Torsional coupling with two displacement-dependent damping...

F - Mech Eng,Light,Heat,Weapons

16

D

F16D 3/50 (2006.01) F16F 15/12 (2006.01)

Patent

CA 2244741

The present invention provides an auxiliary torsional damper (110) of the surface-effect type capable of damping torsional spikes which may occur during operational transition through the system's resonance frequency. Preferably, the auxiliary damper (110) will be designed with a decoupling feature (114) such that the damper (110) will only provide auxiliary torsional damping for torsional oscillations which surpass a threshold amplitude. Since the surface- effect damper of the present invention is deflection dependent, the larger the magnitude of the torsional spike, the larger the damping that will be applied thereto.

La présente invention concerne un amortisseur de torsion auxiliaire (110) du type à effet de surface capable d'amortir les pointes de torsion qui peuvent se produire au cours de la transition fonctionnelle par suite de la fréquence de résonance du système. De préférence, l'amortisseur auxiliaire (110) est conçu avec une caractéristique de découplage (114) telle que l'amortisseur (110) ne produit un amortissement de torsion auxiliaire que pour les oscillations de torsion dont l'amplitude dépasse un certain seuil. Comme l'amortisseur à effet de surface décrit ici a une action qui varie avec la déflexion, plus l'amplitude de la pointe de torsion est importante, plus l'amortissement exercé sur cette torsion est fort.

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