Parameter Optimization And Simulation Of Clutch Friction Plate

Today,the automobile industry has developed rapidly.The high performance and superior comfort of motor vehicles become the primary reference factors for consumers to buy.The clutch occupies an important position in the motor vehicle transmission system,and its performance plays a decisive role in the transmission efficiency and comfort of the motor vehicle.The most important part in the clutch structure is the friction plate.Its structural characteristics determine the service life and performance of the clutch.In recent years,domestic and foreign researchers have carried out a variety of analysis and research on the clutch friction plate,through experiments,simulation and other ways to study the clutch friction plate,and through a variety of algorithms to establish mathematical optimization model,always optimize the friction plate temperature rise,sliding time,volume and other issues.This provides the experimental basis and theoretical parameters for the optimal design of friction plates.In this paper,taking a tractor as the research object,the friction plate of its wet clutch was optimized.Combining the advanced optimization methods and design theories of researchers at home and abroad,this paper aims at the uncertainty of the design parameters of the wet clutch friction plate,and optimizes the dual target with the minimum volume and transmission torque performance of the wet clutch friction plate,using MATLAB.The genetic algorithm and the fuzzy optimization algorithm are combined to propose an optimal design scheme for the friction lining.In order to simplify the dual objective optimization to single target optimization,the second optimization target is brought into the first optimization target as a design variable.After optimization,the outer diameter is reduced from 125mm to 118.78mm;the thickness is reduced from 2.8mm to 2.52mm;the inter-friction gap is reduced from 0.8mm to 0.5mm;the overall longitudinal length of the friction plate is reduced by 5.23%;axial width The reduction is 0.78%;the overall volume is reduced by 30.11%,and the ideal optimization result is obtained.After a series of theoretical studies,the theoretical system of linkage analysis was established by optimizing the steps of design-three-dimensional modeling-finite element analysis.The realization process gradually progresses,and finally the conclusion of the research method.After the theoretical optimization is completed,the finite element analysis of the friction lining is performed.First,three-dimensional modeling was performed using CATIA software,and the model was imported into ANSYS software for simulation optimization analysis.The optimization results are consistent with the mathematical optimization theory presented in this paper,and the correctness of the optimization method is verified.Secondly,the static stress analysis is used to find the maximum stress point of the friction lining.The maximum strain is 0.01mm,and the maximum stress is 212Mpa,which is less than the ultimate yield strength of the material used for the friction 305Mpa.The value satisfies the performance of the friction lining material.Finally,the modal analysis of the friction plates is carried out,and 7-16 natural frequency vibration modes are obtained.It is verified that the optimized friction plates do not resonate with the engine,which proves the feasibility of the optimization method.The optimization study reduces the space occupied by the friction plate inside the clutch,reduces the production cost,optimizes the transmission torque performance,and provides a theoretical reference for parameter optimization of the friction plate structure.