磨粒叶序排布砂轮磨削的磨削力模拟分析

Simulation Analysis of Grinding Force of the Grinding Wheel with Phyllotactic Pattern

为了改善超硬磨料砂轮的磨削能力,基于生物学的叶序排布理论,提出了一种新型有序化排布磨料的超硬磨料砂轮。利用Ls-dyna仿真软件的光滑粒子法(SPH),对叶序排布砂轮进行了磨削力的分析研究,得出了叶序参数和磨削用量对磨粒叶序排布外圆砂轮磨削力的影响规律。仿真结果表明,合理地选择叶序系数k和磨料半径r,可以使叶序排布砂轮在磨削过程中获得较低的磨削力。

In order to achieve the grindability of superabrasive grinding wheel,a new kind of the superabrasive grinding wheel,which has presented abrasive grain pattern, was designed based on the phyllotaxis theory of biology. The grinding force of the superabrasive grinding wheel with phyllotactic pattern was analyzed by using the smoothed particle hydrodynamics（SPH） of I.s dyna simulation software,and the influence of the phyllotactic parameters of the grinding wheel and grinding parameters on the grinding force were obtained. The simulation results showed that the grinding force can be decreased when the phyllotactic parameters of the grinding wheel are reasonably selected.