考虑表面粗糙度的叶片密封面润滑及摩擦的数值研究

发布时间：2018-02-22 02:42

本文关键词： 液压油缸叶片密封表面粗糙度接触压力润滑摩擦　出处：《武汉科技大学学报》2017年03期 　论文类型：期刊论文

【摘要】：为更准确地分析叶片式液压摆动油缸叶片密封面的润滑性能,利用弹性力学平面问题的基本理论建立叶片密封面接触压力数学模型并求得压力在接触面上的分布情况,然后基于瞬态平均Reynolds方程与G-W微凸体接触模型,建立叶片密封面流体动压润滑模型,分析叶片粗糙度对密封面接触压力、油膜厚度分布和摩擦力的影响。结果表明,叶片表面粗糙度增大时,密封面油膜厚度没有明显变化,但摩擦力明显增大。
[Abstract]:In order to more accurately analyze the lubricating performance of the blade sealing surface of the vane hydraulic swinging cylinder, the contact pressure mathematical model of the blade seal surface is established by using the basic theory of elastic plane problem and the distribution of the pressure on the contact surface is obtained. Based on the transient average Reynolds equation and the G-W microconvex contact model, a hydrodynamic lubrication model for the sealing surface of the blade is established. The influence of blade roughness on the contact pressure, oil film thickness distribution and friction force of the sealing surface is analyzed. When the surface roughness of blade increases, the oil film thickness of sealing surface does not change obviously, but the friction force increases obviously.
【作者单位】：武汉科技大学机械自动化学院;武汉船用机械有限责任公司技术中心;
【基金】：国家自然科学基金资助项目(51375352)
【分类号】：TH137.51

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