Simulation and analysis of aerodynamics for high speed face milling cutters  

作　　者：JI ChunHui,LIU ZhanQiang & LIU LuNing School of Mechanical Engineering,Shandong University,Jinan 250061,China 

出　　处：《Science China(Technological Sciences)》2010年第9期2575-2580,共6页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 50828501, 50935003, 50975162);National Basic Research Program of China (Grant No. 2009CB724401);National Key Technology R&D Program of China (Grant No. 2008BAF32B01);Mega-project of High-grade NC Machine Tools and Basic Manufacturing Equipment (Grant Nos. 2009ZX04014-043, 2009ZX04012-031, 2009ZX04012-012);Foundation of Shandong of China for Distinguished Young Scholars (Grant No. 2009 JQB01027)

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.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.

关 键 词：FACE MILLING CUTTER aerodynamic noise NUMERICAL SIMULATION 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]