动态车削过程及其非线性特征-《郑州大学学报(工学版)》

文章信息/Info

Author(s):: Zhang Linna;; Department of Mechanical Engineering, Zhengzhou Institute of Technology,

关键词:: 本文在对三维动态车削过程适应性建模方向及非线性数学模型进行分析的基础上; 进一步以微机数值模拟的方式研究了金属车削颤振过程的机理及动态特性; 从理论上证明了动态车削过程具有明显的非线性特征; 颤振的产生不但与切削用量有关; 而且与机床工艺系统的模态参数、刀具几何参数等均有密切的关系; 合理地选择和调整切削用量; 工艺系统及刀具的有关参数可以有效地改善三维车削的动态稳定性。本文模型的数值分析结论与车削颤振实验结果取得了良好的一致性; 为阐明车削颤振过程的动态特性及其在线监控提供了理论依据。

Abstract:: Based on the analysis of the adaptive modeling direction and non -linear mathematical model of the three -dimensional dynamic driving process, this article further studied the mechanism and dynamic characteristics of the metal vehicle tremor process in a microcomputer numerical simulation method. It theoretically proved that the dynamic driving process has obvious non -linear characteristics. The geometric parameters of tools have close relationships, and reasonably select and adjust the amount of cutting. The related parameters of the process system and tools can effectively improve the dynamic stability of three -dimensional car cutting. The numerical analysis conclusions of the model of this article have made good consistency, which provides a theoretical basis for clarifying the dynamic characteristics of the driving tremor process and its online monitoring.