Stability analysis in milling based on operational modal data

• Autorzy: Powałka B. , Chodźko M. , Jemielniak K.
• Języki publikacji: EN

Abstrakty

EN

Prediction of process stability in milling is usually based on experimental frequency response functions of machine tool and cutting force model. Alternatively, operational modal analysis may be applied for the prediction of a stability diagram. It does not require modal impact test but uses vibration signal acquired during actual cutting to identify modal parameters. Such an approach considers boundary conditions that may be different during cutting. On the other hand synthesis of frequency response function is not feasible due to the lack of scaled modal residues. Thus, in this paper modal mass obtained by means of impact test is used to calculate frequency response functions. Estimation of modal damping and natural frequency is carried out using only acceleration signals measured during flexible workpiece machining.

Słowa kluczowe

EN

milling; chatter; operational modal analysis

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2011
• Tom: Vol. 11, No. 4
• Strony: 70--77
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Powałka B.

• West Pomerania University of Technology, Szczecin, Poland

autor

Chodźko M.

• West Pomerania University of Technology, Szczecin, Poland

autor

Jemielniak K.

• Warsaw University of Technology, Poland

Bibliografia

• [1] TLUSTY J., POLACEK M., 1963, The Stability of Machine Tools Against Self-excited Vibrations in Machining, Proceedings of the ASME International Research in Production Engineering, 465-474.
• [2] TOBIAS S. A., FISHWICK W., 1958, Theory of Regenerative Machine Tool Chatter, The Engineer, London, 205/199-203.
• [3] ALTINTAS Y., WECK M., 2004, Chatter Stability in Metal Cutting and Grinding, Annals of the CIRP, Key Note Paper of STC-M, 53/2/619-642.
• [4] FAASSEN, R. P. H., VAN DE WOUW, N., OOSTERLING, J.A.J., NIJMEIJER, H., 2003, Prediction of Regenerative Chatter by Modelling and Analysis of High-speed Milling, International Journal of Machine Tools and Manufacture, 43/1437–1446.
• [5] SCHMITZ, T., ZIEGERT, J., AND STANISLAUS, C., 2004, A Method for Predicting Chatter Stability for Systems with Speed-Dependent Spindle Dynamics, SME Technical Paper TP04PUB182, Transactions of NAMRI/SME, 32/17-24.
• [6] CHEN C., WANG K., SHIN Y., 1994, An Integrated Approach Toward the Dynamic Analysis of High-Speed Spindles, Part 1: System Model, ASME J. of Vibrations and Acoustics, 116/506-513.
• [7] GAGNOL V., BOUZGARROU B. C., RAY P., BARRA B., 2007, Model-based Chatter Stability Prediction for High-speed Spindles, International Journal of Machine Tools and Manufacture, 47/1176–1186.
• [8] ABELE E., FIEDLER U., 2004, Creating Stability Lobe Diagrams during Milling, Annals of the CIRP, 53/1/309– 312.
• [9] ZAGHBANI I., SONGMENE V., 2009, Estimation of Machine-Tool Dynamic Parameters during Machining Operation through Operational Modal Analysis, International Journal of Machine Tools and Manufacture, 49/12- 13/947–957.
• [10] JUANG J. N., PAPPA R. S., 1985, An EigensystemRealization Algorithm for Model Parameter Identification and Model Reduction, Journal of Guidance Control and Dynamics, 8/5/620–627.
• [11] JAMES G. H., CARNE T. G., LAUFFER,J. P., 1993, The Natural Excitation Technique for Modal Parameters Extraction from Operating Wind Turbines, SAND92-1666, UC-261.
• [12] MOHANTY, P. RIXEN, D.J., 2006, Modified ERA method for Operational Modal Analysis in the Presence of Harmonic Excitations, Mechanical Systems and Signal Processing, 20/1/114-130
• [13] ALTINTAS, Y., BUDAK, E., 1995, Analytical Prediction of Stability Lobes in Milling, Annals of the CIRP, 44/1/357–362.