湿式摩擦离合器带排扭矩预测及影响因素分析

发布时间：2017-12-28 03:15

本文关键词：湿式摩擦离合器带排扭矩预测及影响因素分析　出处：《华南理工大学学报(自然科学版)》2016年03期 　论文类型：期刊论文

【摘要】：以船用湿式多片摩擦离合器油路为研究对象,利用动网格技术对离合器分片过程的流场进行动态仿真,得出摩擦片间隙处油层厚度的分布情况;基于流体动力润滑理论和牛顿内摩擦定律,建立含径向和周向油槽的湿式多片摩擦离合器带排扭矩数学模型,计算得出离合器带排扭矩解析解;建立摩擦离合器片间润滑油层参数化离散模型,采用有限元法计算得出离合器带排扭矩数值解,而后研究了油槽形式、主动轴转速和润滑油温度对离合器带排扭矩的影响规律.结果表明,两种带排扭矩预测方法的计算结果吻合良好;油槽形式对带排扭矩的影响较大;离合器带排扭矩随主动轴转速的增大而增大,随润滑油温度的增大而减小.
[Abstract]:Taking marine oil wet multi plate friction clutch as research object, by using the dynamic flow field grid slice process of clutch dynamic simulation, the distribution of the friction plate gap thickness; hydrodynamic lubrication theory and based on Newton internal friction law, set up with the radial and circumferential oil groove of the wet multi plate friction clutch towing torque mathematical model, calculated the clutch drag torque analytical solution; establish lubrication friction clutch between reservoir parameters of the discrete model, calculated the clutch drag torque numerical solution by using finite element method, and then studied the oil groove form, drive shaft speed and oil temperature on the clutch with influence of torque. The row show that the two kinds of calculation of towing torque prediction results are in good agreement; the impact of oil groove forms on the towing torque larger; clutch drag torque with the driving shaft speed. Increase and increase with the increase of lubricating oil temperature.
【作者单位】：重庆大学机械传动国家重点实验室;重庆齿轮箱有限责任公司;
【基金】：国家自然科学基金资助项目(51175524) 机械传动国家重点实验室科研业务费资助项目(SKLMT-ZZKT-2012 MS 06)~~
【分类号】：U664
【正文快照】： 船用倒顺离合型齿轮箱中,成对安装的湿式多片摩擦离合器分别处于接排状态和脱排状态.离合器脱排状态下空转时,摩擦片与对偶片间的相对转动对润滑油层形成剪切作用,这种由于润滑油层剪切作用产生的扭矩称为带排扭矩.离合器带排转矩的存在,会造成一部分的功率损失,降低传动系统

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