System kontrolno-pomiarowo-symulacyjny czasu rzeczywistego do badań metod aktywnej redukcji drgań

• Autorzy: Galewski M.

Warianty tytułu

EN

Real time control, measurement and simulation system for active vibration control studies

• Języki publikacji: PL

Abstrakty

PL

W artykule przedstawiono koncepcję, a następnie wybrane, kluczowe szczegóły budowy systemu kontrolno-pomiarowo-symulacyjnego czasu rzeczywistego. System ten znajduje zastosowanie w badaniach metod aktywnej redukcji drgań. Zamieszczono przykłady rezultatów badań obrazujące możliwości zastosowania systemu. Dzięki systemowi uzyskano również możliwość szybszego prototypowania algorytmów sterowania oraz obniżono koszty badań.

EN

One of the important problems that may be encountered during milling operations are tool-workpiece relative vibrations [1]. There are many methods of their reduction, particularly including active ones [1-10]. In the paper, an idea of a real time control, measurement and simulation system utilised for studies on active vibration control is presented and its selected key elements are described. The system is based on the PXI platform and is programmed in LabView RT environment (Figs. 1, 2).The organisation of the main control loops in control programs is described in detail (Fig. 3). In order to generate a force acting on the plate, one or two pizeoactutators are used (Fig. 4). They allow not only actively reducing but also exciting vibrations, which are used in Hardware-in-the-Loop (HIL) simulations. In this approach some parts of the controlled system (i.e. cutting process) are simulated, while the others are real (i.e. machined plate). This reduces the time of control law prototyping and testing significantly. It also reduces research costs as there is less need for performing experiments on a real milling centre. The presented system allows measuring vibrations, calculating a control signal for actuators and performing HIL simulations with the same hardware and software. The presented examples of the results obtained thanks to the system (Figs. 5-7) show its versatility and effectiveness. This confirms that the initial idea and chosen programming solutions are correct.

Słowa kluczowe

PL

programowanie LabView; systemy czasu rzeczywistego; symulacje Hardware-in-the-Loop; redukcja drgań

EN

LabView programming; real time system; Hardware-in-the-Loop simulations; vibration reduction

• Wydawca: Wydawnictwo PAK
• Czasopismo: Pomiary Automatyka Kontrola
• Rocznik: 2012
• Tom: R. 58, nr 10
• Strony: 840--843
• Opis fizyczny: Bibliogr. 10 poz., rys., schem., wykr

Twórcy

autor

Galewski M.

• Politechnika Gdańska, Wydział Mechaniczny, ul. G. Narutowicza 11/12, 80-233 Gdańsk,

Bibliografia

• [1] Tomków J.: Wibrostabilność obrabiarek. WNT, Warszawa 1997.
• [2] Kaliński K.: A novel method for vibration surveillance during high speed ball end milling of flexible details. Archives of Control Sciences 2007. Vol. 17 (53), no. 3, 271-282.
• [3] Shiraishi M., Yamanaka K., Fujita H., Optimal Control of Chatter in Turning. International Journal of Machine Tools & Manufacture, Vol. 31, no. 1, 1991, 31-43.
• [4] Liao Y. S., Young Y. C., A New On-line Spindle Speed Regulation Strategy for Chatter Control, International Journal of Machine Tools & Manufacture, Vol. 35, no. 6, 1996, 651-660.
• [5] Kaliński K. J., Galewski M.: Chatter Vibration Surveillance by the Optimal-linear Spindle Speed Control. Mechanical Systems and Signal Processing 2011, Vol. 25, Issue 1, 383-399.
• [6] Soliman E., Ismail F.: Chatter suppression by adaptive speed modulation, International Journal of Machine Tools & Manufacture, Vol. 37, no. 3, 1997, 355-369.
• [7] Ganguli A., Deraemaekar A., Horodinca M., Preumont A.: Active Damping of Chatter in Machine Tools - Demonstration With a “Hardware in the Loop” Simulator, Journal of Systems and Control Engineering, Proceedings of the Institution of Mechanical Engineers, Vol. 219, no. 15, 2005, 359-369.
• [8] Kim M. H., Won D., Ziegert J.: Numerical Analysis and Parameter Study of a Mechanical Damper for Use in Long Slender Endmills, International Journal of Machine Tools & Manufacture, vol. 46, 2006, 500-507.
• [9] Premount A.: Vibration Control of Active Structures, An Introduction, Kluwer Academic Publishers, Dordrecht 2002.
• [10] Kaliński K., Galewski M.: Active Damping of Impulse-Excited Flexible Plate Vibration, W: Projektowanie Mechatroniczne, Zagadnienia wybrane (Red. Uhl T.), AHG, Kraków, 2012 (w druku).