A prediction method for tool point frequency response function based on milling cutters' accurate models

被引：0
|
作者：
Zhu J. [1 ]
He D. [1 ]
Zhang T. [1 ]
机构：
[1] School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2016年 / 35卷 / 16期
关键词：
Equivalent mass method; Experimental modal testing; Milling cutters' accurate model; Receptance coupling substructure analysis; Tool point frequency response function prediction;
D O I：
10.13465/j.cnki.jvs.2016.16.023
中图分类号：
学科分类号：
摘要：
To obtain a more accurate tool point frequency response function, a new prediction method for tool point frequency response function based on milling cutters' accurate models was presented. On the basis of Timoshenko beam and RCSA theories, a machine tool-spindle-holder-cutting tool system was divided into machine tool-spindle-holder-part of tool rob and the rest of milling cutter, then the rest of milling cutter was subdivided into the remaining tool rod, transition part and several cutter teeth. Furthermore, milling cutters were divided into symmetrical cutters and asymmetric cutters. The accurate models of each type of cutters were established respectively. Finally, with several two-fluted and four-fluted milling cutters as the research objects, predicted tool point frequency response function under the new method and equivalent mass method were compared with experimental results. It was experimentally proven that the new method has higher prediction accuracy than the equivalent mass method, in which the relative errors between natural frequencies of predicted frequency response function and the measured ones were within 5%. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：142 / 151
页数：9
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