Modal Testing for Heavy Machine Tool Using Active Excitation

Abstract:

For application in large machine tools, the machined part quality, accuracy as well as machining speed depende greatly on the dynamics of the structure. In this paper, an active-excitation modal analysis (AEMA), using inertial force of the moving slider to excite the structural modes, is proposed. Modal parameters of the machine tool structure estimated by AEMA are experimentally validated. Since the artificial excitation produced by elaborate excitation equipment is replaced by the inertial force of the slider, the proposed method is much more practical and economical than traditional methods.

• Periodical: Applied Mechanics and Materials (Volumes 536-537)
• Pages: 1326-1332
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.536-537.1326
• Online since: April 2014
• Authors: Bo Luo, Bin Li, Xin Yong Mao*, Hui Cai
• Keywords: Dynamic, Machine Tool, Modal Analysis

References

[1] L. Uriarte, M. Zatarain, D. Axinte, J. Yagüe-Fabra, S. Ihlenfeldt, J. Eguia, A. Olarra, Machine tools for large parts, CIRP Annals-Manufacturing Technology, Vol. 62 (2013), pp.731-750.

DOI: 10.1016/j.cirp.2013.05.009

[2] Y. Altintas, C. Brecher, M. Weck, S. Witt, Virtual machine tool, CIRP Annals-Manufacturing Technology, Vol. 54 (2005), pp.115-138.

DOI: 10.1016/s0007-8506(07)60022-5

[3] G.P. Zhang, Y.M. Huang, W.H. Shi, W.P. Fu, Predicting dynamic behaviours of a whole machine tool structure based on computer-aided engineering, International Journal of Machine Tools and Manufacture, Vol. 43 (2003), pp.699-706.

DOI: 10.1016/s0890-6955(03)00026-9

[4] D.J. Ewins, Modal testing: theory, practice and application, Research studies press Baldock, (2000).

[5] F. Magalhães, Á. Cunha, Explaining operational modal analysis with data from an arch bridge, Mech Syst Signal Pr, Vol. 25 (2011), pp.1431-1450.

DOI: 10.1016/j.ymssp.2010.08.001

[6] I.E. Minis, E.B. Magrab, I.O. Pandelidis, Improved Methods for the Prediction of Chatter in Turning, Part 1: Determination of Structural Response Parameters., (1990).

DOI: 10.1115/1.2899289

[7] R. Brincker, Special issue on operational modal analysis, Mech Syst Signal Pr, Vol. 24 (2010), pp.1209-1212.

[8] L. Zhang, T. Wang, Y. Tamura, A frequency–spatial domain decomposition (FSDD) method for operational modal analysis, Mech Syst Signal Pr, Vol, 24 (2010), pp.1227-1239.

DOI: 10.1016/j.ymssp.2009.10.024

[9] I. Zaghbani, V. Songmene, Estimation of machine-tool dynamic parameters during machining operation through operational modal analysis, International Journal of Machine Tools and Manufacture, Vol. 49 (2009), pp.947-957.

DOI: 10.1016/j.ijmachtools.2009.06.010

[10] B. Li, H. Cai, X. Mao, J. Huang, Estimation of CNC machine-tool dynamic parameters based on random cutting excitation through operational modal analysis, International Journal of Machine Tools and Manufacture, (2013).

DOI: 10.1016/j.ijmachtools.2013.04.001

[11] G. Feng, Y. Pan, Investigation of ball screw preload variation based on dynamic modeling of a preload adjustable feed-drive system and spectrum analysis of ball-nuts sensed vibration signals, International Journal of Machine Tools and Manufacture, Vol. 52 (2012).

DOI: 10.1016/j.ijmachtools.2011.09.008

[12] S.R. Ibrahim, Random decrement technique for modal identification of structures, J Spacecraft Rockets, Vol. 14 (1977), pp.696-700.

DOI: 10.2514/3.57251