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Finite element analysis for dynamic behavior of a machine tool structure fed in open loop control  

Choi, Jin-Woo (Research Center, Hyundai WIA)
Lee, Tae-Hong (Research Center, Hyundai WIA)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.19, no.5, 2010 , pp. 596-602 More about this Journal
Abstract
In this study, a fmite element model was developed for analysis of feeding a structure in open loop control The finite element analysis (FEA) can simulate dynamic behavior of the structure of a machine tool rapidly traveling with a screw feeding driving system. The feeding mechanism was implemented with screw element of the FEA tool used in this study. The procedure was developed for the dynamic transient FEA. First, motion parameters such as jerk and velocity were introduced for the structure to be fed in open loop control When its traveling distance was determined, set-points for the distance were generated based on the motion parameters. The set-points were applied to the FE model constructed for the traveling structure. The FEA was executed and evaluated. In this study, the FEA procedure was applied to the column of a machine tool and the dynamic behavior of the column was evaluated. The FEA helps in evaluation of the motion characteristics of a structure. The convergence time of the structure vibration posterior to feeding termination can be estimated and the stiffness of the flexible structure is also evaluated against jerk, and acceleration. It provides the feeding force which is helpful in selection of the feeding motor.
Keywords
Finite Element Analysis; Dynamic behavior; Open loop control; Feeding mechanism; Machine tool structure;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Vesely, J., 2009, "Complex model of machine structure with feed drive," Int. J of Natural Sciences and Engineering, Vol. 2, No. 4, pp. 193-199.
2 ANSYS, 2010, ANSYS User's Manual Version 12.0, ANSYS Inc.
3 NSK, 2010, NSK Ball-Screws and Linear Guides, Korean Edition, Korea NSK Ltd.
4 Altintas, Y., 2000, Manufacturing Automation: metal cutting mechanics, machine tool vibrations, and CNC design, Cambridge University Press, Cambridge, UK, pp. 65-228.
5 Kim, M. H. and Jung, J. S., 2006, Control and Experimental for Industrial Servo System Drives of SPMSM, BoSungGak, Seoul, pp. 11-230.
6 Younkin, G. W., 1991, "Modeling Machine Tool Feed Servo Drives Using Simulation Techniques to Predict Performance," IEEE Transactions on Industry Applications, Vol. 27, No. 2, pp. 268-274.   DOI   ScienceOn
7 Choi, Y. H. and Hong, J. H., 2004, "A Study on the Feed Rate Optimization of a Ball Screw Drive System for Minimum Vibrations," Proceedings of Autumn Conf. of Korean Society for Noise and Vibration Engineering, pp. 962-966.
8 Kim, S. H., Jung, J. H., and Kim, H. J., 2009, "Experiment Based Dynamic Analysis for High Accuracy Control of Feed System," Journal of the Korean Society of Marine Engineering, Vol. 33, No. 5, pp. 729-737.   과학기술학회마을   DOI
9 Cho, Y. D., Chung, W. J., Lee, C. M., and Yoon, S. H., 2008, "Study on decreasing displacement of the MC (machining center) moved column with high-speed for optimization of acceleration and DOE(Design Of Experiment)," Transactions of the Korean Society of Machine Tool Engineers, Vol. 17, No. 1, pp. 35-42.   과학기술학회마을
10 Kim, D. M., Kim, D. H., Park, K. K., and Choi, H. C., 2010, "Coupled Flexible Multi-Body Dynamics and Controller Analysis of Machine tool," Transactions of the Korean Society of Machine Tool Engineers, Vol. 19, No. 3, pp. 307-312.   과학기술학회마을
11 Han, S. H., 1997, Automatic Control System Engineering, DaesSinGiSul Press Ltd., Seoul, pp. 9-28.
12 Joshi, P. J., 2007, Machine Tools Handbook: Design and Operation, Tata McGraw-Hill, New Delhi, India, pp. 1-92.
13 Weck, M., 1984, Handbook of Machine Tools, Vol. 1, English translation, John Wiley, New York, pp. 1-229.