INVESTIGATION OF THE DYNAMIC BEHAVIOR OF MACHINE TOOLS DURING CUTTING BY OPERATIONAL MODAL ANALYSIS

被引：4
作者：
Berthold, J. [1 ]
Kolouch, M. [2 ]
Ragel, J. [1 ]
Putz, M. [1 ,2 ]
机构：
[1] Tech Univ Chemnitz, Professorship Machine Tools & Forming Technol, Reichenhainer Str 70, Chemnitz 09126, Germany
[2] Fraunhofer Inst Machine Tools & Forming Technol I, Reichenhainer Str 88, Chemnitz 09126, Germany
来源：
MM SCIENCE JOURNAL | 2019年 / 2019卷
关键词：
Machine tool; Dynamic; Operational modal analysis; Measurement; IDENTIFICATION;
D O I：
10.17973/MMSJ.2019_11_2019054
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A common approach for the experimentally estimation of modal parameters is the Experimental Modal Analysis (EMA). EMA takes place in the standstill of the machine, consequently neglecting effects that only occur during the cutting process. Alternatively the Operational Modal Analysis (OMA) makes possible to investigate structures under operational loads and conditions. In this paper, a machine tool is investigated during cutting and the modal parameters are estimated by OMA, with several identification methods working in the frequency domain as well as in the time domain. These results are also contrasted to EMA to investigate the differences between cutting and standstill.
引用
收藏
页码：3078 / 3085
页数：8
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