Study Behavior Of Speeding Wet Clutch And Fuzzy Controller

Multi-frictional disks are employed to transmit the torque in speeding wet clutch, and the oil thickness within frictional disks could be adjusted for practical output speeding. The paper presents the analysis for behavior and output characteristics of speeding wet clutch, discusses factors which have impact on the speeding wet clutch. The fuzzy technology is applied for estimating feasibility of speeding wet clutch control. The fuzzy controller is made on trial and error.Since oil combined with a-hydrocarbon or polyester is getting widely used as lubricant and the frictional disks in speeding wet clutch work within hydrodynamic lubrication, mixture lubrication, boundary lubrication and contact situation, the author establishes the analysis model for investigating the behavior of frictional disks in speeding wet clutch based on above characters, which covers the power-law fluid model, Patir-Cheng average flow model, GT asperity contact model, oil film inertia and thermal effect. The paper describes and deduces the formulas for speeding wet clutch in detail, which are Reynolds equation, mean energy equation, aspect pressure equation, and heat conduction equation. The numeral calculation is executed in hydrodynamic lubrication and mixture lubrication. The analysis is presented for frictional material, groove shape, surface roughness, and thermal effect impacted on transmitted torque, mean push pressure, output speed, and film thickness rate in speeding wet clutch. The paper indicates that the groove in the passive frictional dish not only forms hydrodynamic film, but also cools surface of frictional dish, that the different shapes of the groove are less influence on the speeding wet clutch working behavior, but number and angle of the groove in speeding wet clutch have effect on the speeding wet clutch working behavior, that the more relative speed is, the more thermal effect does for speeding wet clutch, and that the fluid inertia could be ignored while the relative speed is less than 1,500 rad/ min, otherwise the thermal influence should be considered. The paper also discovers the relationship with output speed, transmitted torque, mean push pressure, and film thickness rate, which is significant to speeding wet clutch design.Based on behavior and operating performance of speeding wet clutch, the writer sets up dynamic analysis model. An approximate linear control theory is used to consider essential of speeding stability after quantitative analysis and simulation are executed. The speeding system...