标题：Simulation and analysis of aerodynamics for high speed face milling cutters
作者：Ji ChunHui; Liu ZhanQiang; Liu LuNing
作者机构：[Ji, C] School of Mechanical Engineering, Shandong University, Jinan 250061, China;[ Liu, Z] School of Mechanical Engineering, Shandong University, Ji 更多
通讯作者地址：[Liu, ZQ]Shandong Univ, Sch Mech Engn, Jinan 250061, Peoples R China.
关键词：face milling cutter; aerodynamic noise; numerical simulation
摘要：In high speed face milling, noise can be broadly categorized as idling noise and cutting noise. Idling noise mainly consists of aerodynamic noise. A mathematical model is developed based on the Ffowcs Williams-Hawkings Equation. The noise predicted with the mathematical model compares well with the experimental observations. The characteristics of aerodynamic noise with the different model parameters (number of teeth, tooth spacing) and locations of observation points are investigated. The directivity of noise is found and the peak value of sound power can be moved from the rotating frequency to higher frequency. This investigation can provide theoretical foundation for the design of face milling cutters with low noise.