Fluid Stiction From a Contact Condition

Authors

  • Remzija Ćerimagić Fluid Power and Mechatronic Systems, Department of Energy Technology, Aalborg University, 9220 Aalborg East, Denmark https://orcid.org/0000-0001-5455-9019
  • Per Johansen Fluid Power and Mechatronic Systems, Department of Energy Technology, Aalborg University, 9220 Aalborg East, Denmark https://orcid.org/0000-0001-8010-283X
  • Torben Ole Andersen Fluid Power and Mechatronic Systems, Department of Energy Technology, Aalborg University, 9220 Aalborg East, Denmark https://orcid.org/0000-0002-7816-4529
  • Rudolf Scheidl Institute of Machine Design and Hydraulic Drives, Johannes Kepler University Linz, Linz, OberÖsterreich, Austria https://orcid.org/0000-0002-1034-7310

DOI:

https://doi.org/10.13052/ijfp1439-9776.2232

Keywords:

Stiction, Fluid films, Surface roughness, Cavitation, Reynolds equation

Abstract

This paper considers modeling of fluid stiction between two separating plates that start from a mechanical contact condition. Published experimental work on initially contacting plates showed significant variations in stiction force peak values. In order to describe the observed strong force variations with mathematical models, the models should be quite sensitive to some of the input parameters of the stiction problem. The model in this paper assumes that small air bubbles are entrapped between the contact areas of the asperity peaks and that the fluid film flow between the cavitation bubbles is guided by Reynolds equation. The proposed model exhibits high sensitivity to initial bubble size and initial contact force compared to state-of-the art models. A delay of about 1 ms in the simulated stiction force evolution and the experiments was found. Potential causes for this discrepancy are discussed at the end of this paper and an outlook to future work, which can reduce the discrepancy between the model and experimental results is given.

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Author Biographies

Remzija Ćerimagić, Fluid Power and Mechatronic Systems, Department of Energy Technology, Aalborg University, 9220 Aalborg East, Denmark

Remzija Ćerimagić received his M.Sc. degree in Electro Mechanical System Design from Aalborg University, Aalborg, Denmark, in 2015. Since 2015 he has been a Ph.D. fellow at the Department of Energy Technology, Aalborg University. His research focuses on tribology modeling and simulation in fluid power pumps and motors.

Per Johansen, Fluid Power and Mechatronic Systems, Department of Energy Technology, Aalborg University, 9220 Aalborg East, Denmark

Per Johansen received the B.Sc. and M.Sc. degrees in electromechanical systems engineering and the Ph.D. degree in mechanical engineering, for his studies in tribodynamic modeling, all from the Aalborg University, Aalborg, Denmark in 2009, 2011, and 2014, respectively. Since 2014, he has been at the Department of Energy Technology, Aalborg University, where he now holds the position as Associate Professor. His main research interests include Fluid power and mechatronic systems, Tribotronics, Active tribology control methods.

Torben Ole Andersen, Fluid Power and Mechatronic Systems, Department of Energy Technology, Aalborg University, 9220 Aalborg East, Denmark

Torben Ole Andersen Since 2005 professor at the Department of Energy Technology, Aalborg University. Head of section: Fluid Power and Mechatronic Systems. Worked at Danfoss, R&D, as project manager and university coordinator. Research areas covers: control theory, energy usage and optimization of fluid power components and systems, mechatronic system in general, design and control of robotic systems and modelling and simulation of dynamic systems. Head of research programs relating development of a hydrostatic transmission for wind turbines and wave energy converters, and offshore mechatronic systems for autonomous operation and condition monitoring. Author and co-author of more than 250 scientific papers in international journals and conference proceedings.

Rudolf Scheidl, Institute of Machine Design and Hydraulic Drives, Johannes Kepler University Linz, Linz, OberÖsterreich, Austria

Rudolf Scheidl Born November 11th 1953 in Scheibbs (Austria). MSc of Mechanical Engineering and Doctorate of Engineering Sciences at Vienna University of Technology. Industrial research and development experience in agricultural machinery (Epple Buxbaum Werke), continuous casting technology (Voest Alpine Industrieanlagenbau), and paper mills (Voith). Since Dec. 1990 Full Professor for Mechanical Engineering at the Johannes Kepler University Linz. Research topics: hydraulic drive technology and mechatronic design.

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Published

2021-07-10

How to Cite

Ćerimagić, R., Johansen, P., Andersen, T. O., & Scheidl, R. (2021). Fluid Stiction From a Contact Condition. International Journal of Fluid Power, 22(3), 331–356. https://doi.org/10.13052/ijfp1439-9776.2232

Issue

2021: Vol 22 Iss 3

Section

Original Article

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