磨削加工中磨削区流场的数值分析  

Numerical Analysis of Grinding Fluid Field in Grinding

作　　者：商姗姗[1] 孟广耀[1] 李长河[1] 顾礼铎[1] 丁玉成[1] 

机构地区：[1]青岛理工大学机械工程学院,山东青岛266033

出　　处：《润滑与密封》2009年第8期45-49,共5页Lubrication Engineering

基　　金：泰山学者建设工程资助项目

摘　　要：基于动压润滑理论,建立了浇注法方式下磨削区流场的光滑数学模型并利用多重网格法计算出了磨削区流场的动压力和流体速度;在光滑模型的基础上建立了考虑砂轮和工件表面粗糙度的粗糙模型并利用多重网格法得到该模型下的解。结果表明:粗糙模型得到的磨削加工区流体的动压力及流速曲线是不光滑的,但光滑模型和粗糙模型的解吻合较好。By using hydrodynamic lubrication theory, the mathematical model of grinding fluid field in flood was set up, and hydrodynamic pressure and velocity of grinding fluid were calculated by multigrid method. The crude model considering the roughness of grinding wheel and workpiece was built based on the slick model and the solution was obtained by muhigrid method. The result shows that the curves of hydrodynamic pressure and velocity of grinding fluid obtained by crude model are unsmoothed, and the solution of slick model is in good agreement with that of crude model.

关 键 词：磨削区流场 光滑模型 粗糙模型 流体动压力 流体速度 多重网格法 

分 类 号：TH117[机械工程—机械设计及理论]