直线运动轴承优化设计及试验研究

对振动台上的液体静压轴承装置进行研究,对其相关结构进行数值模拟及优化设计。在理论分析过程中,首先建立了油膜及压力场分布的数学模型,在提出了一系列假设的前提下,得到了油膜间隙中液体流动的控制方程即简化的纳维尔-斯托克斯方程及边界条件;然后采用有限元分析软件ANSYS对油膜的流场进行了计算、流体力学数值模拟以及优化设计,解出油膜的压力分布、速度分布、承载能力、流量和最优解。以数值模拟分析为基础,重点进行了试验研究以及相关问题的分析。运用计算得出的最优解,进行了一系列试验。从得到的测试数据中,分析了各种参数对油膜性能的影响规律。

Optimization design and experimental research on linear motion bearing

This paper studies the journal hydrostatic bearing installment on the vibration table,makes the numerical simulation and optimization design to the relevant structure of the vibration table.During the theoretical analysis this paper sets up the mathematical model of oil film and pressure field distributing firstly.Under a series of hypothesis,it obtains a control equation for fluid flow between the oil film interfaces,i.e.simplified Navier Stokes equation and boundary conditions.By using the software ANSYS of finite element analysis to calculate,hydromechanics numerical value to simulate,and optimize as well the design of the flow field of oil membrane,the pressure distribution,velocity distribution of membrane,carrying capability,volume of flow and the most optimization solution have been worked out.Based on numerical simulation analysis,the paper emphasizes the experimental research and analyzes the relevant questions.By way of the optimal solution resulted from the calculation,a series of experiments are carried out.And the influence of various parameters on oil film performance is analyzed based on the obtained test data.