利用Preston方程,考虑了超精密环抛中的诸因素,如工件和磨盘转速比、偏心距以及压强,计算模拟了它们对磨削效果的影响。模拟表明,当转速比越接近1或偏心距越大时,磨削越均匀;均匀分布的压强越大,磨削越不均匀。在这三个影响因素中,转速比的作用最为显著。实现均匀磨削所需的压强应为二次型分布。这些为超精密环抛提供了指导,有助于实现主动控制。 Using the Preston equation, various factors in the ultra-precision toroid are considered, such as workpiece and disc rotational speed ratio, eccentricity and pressure, and their effects on the grinding effect are simulated. The simulation shows that when the speed ratio is closer to 1 or the eccentricity is larger, the grinding is more uniform; the more uniformly distributed the pressure, the more uneven the grinding. Among the three influencing factors, the speed ratio has the most significant effect. The pressure required to achieve uniform grinding should be quadratic. These provide guidance for ultra-precision ring throws, helping to achieve proactive control.