(1. 吉林大学 机械科学与工程学院，长春 130022；2. 密西根大学安娜堡分校 机械工程系，安娜堡 MI 48109-2136)
Influence of the orientation of principal stiffness axes on the harmonic parameters of dynamic response in mode-coupled regenerative machining system
Lin Jie-qiong1,2,Zhou Xiaoqin 1; Kong Fansen 1; Wang Wencai 2; Yu Junyi 1
(1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China; 2. Dept. of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109-2136, USA)
Abstract: Both regenerative cutting and mode-coupling principles are taken into consideration to model the delayed dynamics of regenerative machining system under stochastic excitation. The influencing of the orientation of principal stiffness axes on machining instability lobes is analyzed. The dynamic responses of machining system are sampled as the observation data. The cross fourth-order cumulant based ESPRIT approach to jointly estimating harmonic parameters is proposed, which is applied to investigate the influence of the orientation of principal stiffness axes into the harmonic parameters of dynamic response in mode-coupled regenerative machining system. Several novel dependent characteristics of the harmonic parameters on the orientation of principal stiffness axes is disclosed, these harmonic parameters includes the frequency, phase shift and cross power of the dynamic machining responses.
林洁琼;周晓勤;孔繁森;王文才;于骏一.
刚度主轴方位对模态耦合再生切削系统动态响应谐参数的影响[J]. , 2009, 28(5): 63-68.
Lin Jie-qiong;Zhou Xiaoqin;Kong Fansen;Wang Wencai;Yu Junyi . Influence of the orientation of principal stiffness axes on the harmonic parameters of dynamic response in mode-coupled regenerative machining system
. , 2009, 28(5): 63-68.
2009, Vol. 28 
