토크 컨버터 록업클러치 마찰면 온도에 대한 수치해석적 연구

Automatic transmission vehicle has many advantages over the convenience of driving, acceleration, smooth shifting and the small impact than manual transmission. But, Torque converter used ATF to transfer the power of an engine to an input shaft. Driveline system moved by working fluids brings the loss of power. To solve this problem, a key element of torque converter functions is a Lock-up clutch. The torque converter connects an engine and auto-transmission directly for better fuel enconomy. To reduce more fuel consumption, the slip is generated between a friction facing and front cover these days. The slip however has the bad influence on the torque converter. the heat caused by the slip make the deformation of torque converter. After all, the powertrain system is out of order. In this study we proposed the new analysis method. To analysis the heat transfer between the friction facing and a front cover, the contact pressure analysis is carrien out first. The heat generation predicted is used as the boundary condition of CFD. The comparison between numerical analysis data and experiment data has also been performed.