Modeling and Simulation Analysis of Transmission Mechanism of Hydraulic Viscous Speed Regulating System
As a new type of fluid transmission technology,hydraulic viscous transmission has the advantages of compact structure,light weight,high efficiency and stepless speed regulation.However,due to its complex internal structure,the structure and parameters of the model are greatly affected by temperature,and the time-varying parameters make it difficult to accurately obtain the parameters of the model,it is very difficult to use the mechanism to model and simulate it.Aiming at the above problems,this paper uses AMESim software as the platform to establish a comprehensive model of hydraulic viscous speed regulation system based on the mechanism of hydraulic viscous speed regulation,including hydraulic control model,axial dynamics model,rotation dynamics model and load model,and establishes the corr-elation model between oil film stiffness/damping and thickness,lubricating oil pressure and speed difference.The simulation and test data under different input speeds are compared.The results show that the integrated multi-parameter model of the hydraulic viscous speed control system can show the characteristics of large hysteresis and nonlinear operation in the actual work.The output speed and other parameters are close to the actual effect in the state of discharge,and the accuracy reaches 92.39％.It provides a verification platform for structure optimization,performance evaluation and precise control of hydraulic viscous speed control system.
hydraulic viscous speed control systemmechanism modelingsimulation analysischaracteristic analysis
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