高速动静压轴承油膜温度场的分析与研究

发布时间：2018-06-19 11:47

本文选题：动静压轴承 + 油膜温升　；参考：《东华大学》2011年硕士论文

【摘要】：本文首先从润滑理论入手,以经典的雷诺理论为基础,采用传统的有限差分法对滑动轴承进行建模,并基于MATLAB软件进行编程计算与分析。同时,提出了一种新的计算方法。该算法方便了试验数据的测量。其次,在动静压轴承特性分析上主要从动静压轴承运行参数入手,以计算流体力学理论为基础,以四油腔对置浅腔动静压轴承为主要研究对象,并以MATLAB和FLUENT6.3为工具,着重研究了轴承供油压力、主轴转速、偏心率对轴承油膜压力分布、偏位角、油膜温升等相关参数的影响。通过对比与分析不同输入参数下得出的油膜温度场,提出了相应的降温措施,提高了数值模拟在动静压滑动轴承设计计算中的可靠性,为全面研究油膜轴承的动静态特性和润滑介质的流动情况提供了有效的手段。
[Abstract]:Based on the classical Reynolds theory, the traditional finite difference method is used to model the sliding bearing, and the calculation and analysis are carried out based on MATLAB software. At the same time, a new calculation method is proposed. This algorithm facilitates the measurement of experimental data. Secondly, in the analysis of the characteristics of the hydrostatic bearing, it mainly starts with the running parameters of the hydrodynamic bearing, based on the theory of computational fluid dynamics, takes the four oil cavity opposite shallow cavity static and static bearing as the main research object, and takes MATLAB and fluent 6.3 as the tools. The effects of bearing oil supply pressure, spindle speed and eccentricity on oil film pressure distribution, offset angle, oil film temperature rise and so on are studied. By comparing and analyzing the oil film temperature field under different input parameters, the corresponding cooling measures are put forward, and the reliability of the numerical simulation in the design and calculation of the hydrostatic sliding bearing is improved. It provides an effective method for studying the dynamic and static characteristics of oil film bearing and the flow of lubricating medium.
【学位授予单位】：东华大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH133.3

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