Research On Optimization And Simulation Of Wet Friction Clutch Of Mineral Explosion-proof Locomotive

In order to solve the safe and economical problem of mine haulage, School of Mechanical Engineering of Xiˊan University of Science and Technology understakes the important industrialization cultivation-item of shaanxi province educational department ——Research and Development of Mineral Explosion-proof Disel-Engine Rail Haulage Traction Locomotive. Clutch is the important part of the transmission system of mineral locomotive, its work performance and frictional heating in gassy environment may endanger mine safety. So in this thesis, which is based on wet friction clutch of the mineral locomotive designed, design method, work performance and frictional heating of wet friction clutch are primarily studied. Parameters involving in design of wet friction clutch are uncertain a lot, traditional design of wet friction clutch can not fulfill design demand, so this thesis makes the optimization mathematical model, which desicribes the structure of cultch to be minimum and the dynamic transmission to be best of all as design object function, and comparatively perfect optimization result of wet friction clutch is obtained by using fuzzy comprehensive evaluation, fuzzy extension principle and primary object method. On the study of clutch work performance, by analyzing the transmission system of this mine locomotive, the engagement dynamic model of wet friction clutch is established, clutch engagement of traditional design and fuzzy optimum design are simulated respectively, and fiction plate's velocity and friction power rule in some work cases are obtained. Based on simulation results, wear resistance and anti-fritional heating of the clutch by fuzzy optimum design are improved evidencely, on the basis of the structure of clutch to be minimum and the dynamic transmission to be best of all. Based on engagement simulation of wet friction clutch, temperature field of wet friction clutch engagement is simulated, deformation of clutch friction plate is analyzed by means of finite element method, and finally temperature field and deformation of clutch frition plate are obtained. These researches provide theory basis for work safety of the mine locomotive. Making use of powerful scientific computing fuction and graphics user interface design tool of MATLAB software, this thesis accomplishes optimum design and simulation software of wet friction clutch, which can provide the sofeware tool for design and analysis of friction clutch.