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.
出处
《润滑与密封》
CAS
CSCD
北大核心
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
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
grinding fluid field
slick model
crude model
hydrodynamic pressure
fluid velocity
multigrid method
