Abstract
Abstract : Engine torque is transferred to the transmission where drag torque is minimized improving fuel efficiency. This is particularly true in a wet clutch pack. This study measures slip friction when the wet clutch pack in a DCT (Dual-Clutch Transmission) is disengaged, and the friction pads are slipping. Shudder engagement velocity, and applied forces can be measured under various working conditions through these torque transfer experiments. Test results demonstrate that the design parameters, and engagement conditions of wet clutch packs can be optimized to reduce shudder and frictional vibration during engagement in a dual clutch transmission. Key words : Wet clutch(습식클러치), Dual clutch(듀얼클러치), Sliding friction(미끄럼마찰), Shudder(떨림), Frictional vibration(진동), Torque transfer(토크변화), DCT(듀얼클러치 변속기) Nomenclature 1) : apply force : separate plate inertia : fly wheel inertia : apply pressure on the piston : friction plate of inner radius : friction plate of outer radius
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