Open AccessThe influence of temperature on the engagement process of the wet clutches
Author(s) -
Zhe Yang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1939/1/012057
Subject(s) - clutch , asperity (geotechnical engineering) , torque , smoothness , breakage , thermal , mechanics , process (computing) , materials science , automatic transmission , mechanical engineering , engineering , computer science , thermodynamics , physics , composite material , mathematics , mathematical analysis , operating system
The wet clutch is an important component in the vehicle transmission system, which has an important influence on the smoothness and rapidity of the vehicle starting and shifting processes. As a friction element, wet clutches are usually troubled by the wear and breakage problems, caused by high temperature. To solve this problem and reveal the operating mechanism, a dynamic model, along the circumferential and axial direction is proposed to describe the engagement process. In addition, a lumped thermal resistance model is established to predict the changing trend of the temperature during the engagement process. Then, with these two models, an integrated model is proposed. From the simulation results, the initial temperature has little effect on the temperature rise of the wet clutch. While, it has an obvious influence on the viscous torque, the higher the temperature is, the smaller the viscous torque is. While, for the asperity torque, it is opposite.