基于AMESim的液粘调速离合器动态接合特性研究  

Dynamic Engagement Performance of Hydro-viscous Clutch Based on AMESim

作　　者：廖湘平[1] 龚国芳[1] 孙辰晨[1] 王飞[1] 

机构地区：[1]浙江大学流体动力与机电系统国家重点实验室,杭州310027

出　　处：《农业机械学报》2016年第6期324-332,共9页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家重点基础研究发展计划(973计划)项目(2013CB035400);国家高技术研究发展计划(863计划)项目(2012AA041803);国家自然科学基金创新研究群体科学基金项目(51221004)

摘　　要：为了在不增加系统装机功率的前提下提升驱动扭矩,设计了一种'电机+飞轮+液粘调速离合器'驱动系统。创建了驱动系统各能量传递环节的数学模型、油膜承载力模型和驱动系统的AMESim仿真模型,揭示了飞轮转动惯量、油膜厚度控制曲线等因素对液粘调速离合器动态接合特性的影响规律,得到了扭矩、转速及冲击度变化曲线,搭建了相应的实验台架。仿真和实验结果表明,通过合理控制液粘调速离合器的油膜厚度,实现了持续时间长达50 s的两倍额定扭矩的输出,可满足大中型机械设备对于启动扭矩大、冲击度小的工程需求。It is not easy for large engineering machinery equipment to start smoothly and successfully,because the starting torque is much larger than its rated torque. In order to improve the starting torque without increasing the installed power of system,a new driving system,which was composed of electric motor,flywheel and hydro-viscous clutch（ HVC）,was proposed. Based on the mathematics model of new driving system and oil film bearing capacity,the AMESim simulation model of HVC system was built up. According to the influence analysis of flywheel rotary inertia and oil film thickness control method on the dynamic engagement performance of HVC,curves of torque,rotational speed and jerk degree were obtained. The simulation results showed that compared with wet clutch,HVC can effectively avoid the start-up shock by reasonable control of oil film thickness,and the variable decreasing speed of oil film thickness was a good method to increase the starting torque and reduce the jerk degree. To verify the theoretical analysis and simulation,a test rig of the HVC system was established. The experimental results showed that the viscous torque curve with twice of the load torque and duration of 50 s were achieved by controlling the oil film thickness of HVC,which can satisfy the demands of big starting torque and small impact for large engineering machinery equipment.

关 键 词：液粘调速离合器 AMESIM 动态接合特性 

分 类 号：TH133.4[机械工程—机械制造及自动化]