基于OpenGL技术的滑动轴承油膜特性可视化研究

Visualization research on oil film characteristics of sliding bearing based on OpenGL

为解决滑动轴承油膜厚度场、温度场和压力场的可视化问题,将OpenGL图形技术应用到滑动轴承油膜特性三维模型的显示中,研究开发了流体动压径向滑动轴承油膜特性的三维可视化仿真系统。模型中将轴瓦简化为略去厚度的圆柱面来处理;为便于观察,厚度场、温度场和压力场建立在轴瓦曲面的外表面,并以"高度+颜色"的组合方法表现了油膜特性参数的大小,给出了各模型的具体建立方法;通过人机交互的方式控制模型的缩放、旋转,并给出了模型旋转、缩放的具体方案。研究结果表明,该仿真系统实现了对流体动压径向滑动轴承的油膜特性可视化模型的观察分析及交互操作,可方便、直观地研究轴承油膜的工作性能,有助于对滑动轴承进行故障分析从而提高其设计质量。

In order to solve the problem of sliding bearing oil film thickness field, temperature field and pressure field of visualization, the OpenGL graphic technology was applied to the oil film of sliding bearing characteristics of three-dimensional model of the display, the hydrodynamic sliding beating oil film characteristics of 3D visual simulation system was researched and developed. The model was simplified to omit bearing thickness cylindrical surface to handle. For ease of observation, the thickness field, temperature field and pressure field based on bearing curved was built in the outer surface, the ＂high ＋ color＂ combination method was used to show the characteristics of oil film parameter, the specific method of establishing model was given, model scaling, rotating through the man-machine interactive mode control, a model of rotation, scaling scheme was given. The research results show that simulation system realizes the observation analysis and interactive operation of fluid dynamic pressure radial sliding bearing oil film visualization model,can conveniently, visually research the bearing oil film performance,contribute to the sliding bearing fault analysis so as to improve the quality of design.