Simulation for instable floating of hydrodynamic guides during acceleration and at constant velocity

• Autorzy: Zhang Y. , Wittstock V. , Putz M.

Identyfikatory

DOI

10.5604/01.3001.0012.4602

• Języki publikacji: EN

Abstrakty

EN

High speeds and the resulting hydrodynamic pressure lead to significant floating of the linear guides. During this movement, the floating behaviour shows phenomena that can be explained by the Reynolds equation. This paper presents a dynamic model of the floating behaviour, which adds tribological approaches to the common Reynolds equation since the floating behaviour does not only depend on the speed, but also on numerous other conditions. This developed simulation method is based on the use of finite difference elements and was implemented using Simulink and Matlab, allowing flexible implementation of further influences such as lubrication cycles and geometry of the sliding surface. After adapting the simulation model and determining the parameters, the calculated floating behaviour corresponds well with the experimental results.

Słowa kluczowe

EN

dynamic model; instable floating; adaptive FE simulation; hydrodynamic guide

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2018
• Tom: Vol. 18, No. 3
• Strony: 5--15
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Zhang Y.

• Chemnitz University of Technology, Faculty of Mechanical Engineering, Professorship for Machine Tools and Forming Technology, Chemnitz, Germany

autor

Wittstock V.

• Chemnitz University of Technology, Faculty of Mechanical Engineering, Professorship for Machine Tools and Forming Technology, Chemnitz, Germany

autor

Putz M.

• Chemnitz University of Technology, Faculty of Mechanical Engineering, Professorship for Machine Tools and Forming Technology, Chemnitz, Germany
• Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz, Germany

Bibliografia

• [1] HIRSCH A., ZHU B., 2011, Hydrodynamische Gleitführungen in Werkzeugmaschinen – ein Auslaufmodell? Konstruktion, 63, 11-12, 67-72.
• [2] ZHANG Y., WITTSTOCK V., PUTZ M., Geometrische Gestaltung hydrodynamischer Gleitflächen für Geschwindigkeiten bis 100 m/min – Berechnung und Experiment, 12, VDI–Fachtagung, Gleit- und Wälz-lagerungen 201.
• [3] GLÄSER M., WITTSTOCK V., HIRSCH A., PUTZ M., 2017, Simulation method for the floating of hydrodynamic guides, Procedia CIRP, 62, 346-350.
• [4] LAKAWATHANA P., MATSUBARA T., NAKAMURA T., 1998, Mechanism of hydrodynamic Load Capacity Generation on a Slideway, JSME International Journal, C, 41/1, 125-133.
• [5] FULLER D.D., 1956, Theorie und Praxis der Schmierung, New York, John Wiley & Sons.
• [6] KOLOUCH M., ZHU B., HIRSCH A., MUSTER J., 2013, Führungselement und Vorrichtung für eine Gleitführung, German Patent DE 102013019398.