토크 컨버터 댐퍼 형상 최적화에 관한 연구

Torque Converter located inside auto-transmission transmits power from engine to drive shaft during driving. The automatic transmission vehicles have many advantages same as convenience, speed of the smoothness and low-speed impact. In spite of many advantages compared with manual transmission, power transferred by fluid has inevitable drawbacks. Lock-up Clutch improving this loss, when driving a vehicle at the high speed, has a similar structure and characteristic of clutch of manual transmission as a device for a direct connection. When combined the Lock-up clutch, maximum efficiency is obtained.. But NVH is raised due to vibration and impact caused by the Lock-up device. Therefore various damper system is under development to solve these problems. Also, In addition to the goal of reducing NVH problems, It is greatly important to reduce the effect of oscillation, friction, and impact in damper’s service life. In this study, we propose the design approach to improve durability through the case study of stress distribution according to shapes of cut using Ansys Workbench in one of the commercial structure analysis programs.