Strategies for Implementing the Jakobsson-Floberg-Olsson Cavitation Model in EHL Simulations of Translational Seals

Authors

DOI:

https://doi.org/10.13052/ijfp1439-9776.2223

Keywords:

cavitation, EHL simulation, hydraulic seal, JFO model, stability

Abstract

The numerically stable simulation of cavitation effects is mandatory for predicting the friction and wear behavior of translational hydraulic seals. This contribution provides a comparison of two different implementations of the Jakobsson-Floberg-Olsson (JFO) cavitation model, an investigation of their properties and possible options for their stabilization. These methods are tested and compared both within a simple divergent gap test case as well as within an EHL simulation of a rubber metal contact. Based on these comparisons and theoretical investigations, the strengths and weaknesses of the different methods are summarized and discussed with respect to an application in EHL simulations of translational hydraulic seals.

Downloads

Download data is not yet available.

Author Biographies

Niklas Bauer, RWTH Aachen University, Institute for Fluid Power Drives and Systems (ifas), Aachen, Germany

Niklas Bauer studied mechanical engineering at RWTH Aachen University. Before graduating with a master’s degree in 2019, he was a student research assistant at the Chair and Institute of General Mechanics and the Chair for Computational Analysis of Technical Systems. He is a member of the scientific staff at ifas. His research interest is the numerical simulation of sealing friction.

Andris Rambaks, RWTH Aachen University, Institute for Fluid Power Drives and Systems (ifas), Aachen, Germany

Andris Rambaks studied mechanical engineering at Riga Technical University and later at RWTH Aachen University. In 2018, he obtained his master’s degree in mechanical engineering and is currently a member of the scientific staff at ifas. As a member of the research group fluids, his main interests are fluid properties and the numerical simulation of multiphase flow.

Corinna Müller, RWTH Aachen University, Institute for Fluid Power Drives and Systems (ifas), Aachen, Germany

Corinna Müller started studying computational engineering science at RWTH Aachen University in 2018. She worked as a student research assistant at the Chair for Computational Analysis of Technical Systems. She is a student research assistant at ifas, where, her work focuses on the development and implementation of numerical methods for tribological problems.

Hubertus Murrenhoff, RWTH Aachen University, Institute for Fluid Power Drives and Systems (ifas), Aachen, Germany

Hubertus Murrenhoff is the former director of the Institute for Fluid Power Drives and Systems (ifas), formerly named Institute for Fluid Power Drives and Controls (IFAS) at RWTH Aachen University, Germany. Main research interests cover hydraulics and pneumatics including components, systems, controls, simulation programs and the applications of fluid power in mobile and stationary equipment.

Katharina Schmitz, RWTH Aachen University, Institute for Fluid Power Drives and Systems (ifas), Aachen, Germany

Katharina Schmitz graduated in mechanical engineering at RWTH Aachen University in 2010 with part of her studies at Carnegie Mellon University in Pittsburgh (USA) and working in Le Havre (France). In 2015, Prof. Schmitz graduated as Dr.-Ing. Since March 2018 she is full professor at RWTH Aachen University and Director of the institute for Fluid Power Drives and Systems.

References

Shivam Alakhramsing, Ron Ostayen, and Rob Eling. Thermo-hydrodynamic analysis of a plain journal bearing on the basis of a new mass conserving cavitation algorithm. Lubricants — Open Access Tribology Journal, 2015:256–280, 2015.

Julian Angerhausen, Hubertus Murrenhoff, Leonid Dorogin, Bo Persson, and Michele Scaraggi. Influence of transient effects on the behaviour of translational hydraulic seals. In Proceedings of the 11th International Fluid Power Conference, pages 562–573, 2018.

Julian Angerhausen, Hubertus Murrenhoff, Leonid Dorogin, Bo N.J. Persson, and Michele Scaraggi. The influence of temperature and surface structure on the friction of dynamic hydraulic seals. Proceedings of the 10th JFPS international Symposium on Fluid Power, pages 1C09, 1–9, 2017.

Julian Angerhausen, Maik Woyciniuk, Hubertus Murrenhoff, and Katharina Schmitz. Simulation and experimental validation of translational hydraulic seal wear. Tribology International, 134:296–307, 2019.

Niklas Bauer, Andris Rambaks, Hubertus Murrenhoff, and Katharina Schmitz. Implementation of the jakobsson-floberg-olsson cavitation model in an ehl simulation of translational hydraulic seals. Proceedings of the 2020 IEEE Global Fluid Power Society PhD Symposium, pages 183–193, 2020.

Paul DuChateau and David W Zachmann. Applied partial differential equations. Harper & Row, 1989.

H.G. ELROD and M.L. Adams. A computer program for cavitation and starvation problems. Proceedings of the 1st Leeds-Lyon Symposium on Tribology (Cavitation and Related Phenomena in Lubrication), 37, 1975.

Jonathan E. Guyer, Daniel Wheeler, and James A. Warren. FiPy: Partial differential equations with Python. Computing in Science & Engineering, 11(3):6–15, 2009.

Willem Hundsdorfer and Jan G Verwer. Numerical solution of time-dependent advection-diffusion-reaction equations, volume 33. Springer Science & Business Media, 2013.

Bengt Jakobsson and Leif Floberg. The finite journal bearing, considering vaporization. Transactions of Chalmers University of Technology, 190, 1957.

Karl-Olof Olsson. Cavitation in dynamically loaded bearings. Transactions of Chalmers University of Technology, 308:59, 1965.

Yekta Öngün. Finite element simulation of mixed lubrication of highly deformable elastomeric seals. Shaker, 2010.

Nadir Patir and HS Cheng. An average flow model for determining effects of three-dimensional roughness on partial hydrodynamic lubrication. Journal of Lubrication Technology, pages 12–17, 1978.

B. N. J. Persson. Theory of rubber friction and contact mechanics. The Journal of Chemical Physics, 115:3840–3861, 2001.

B. N. J. Persson. Relation between interfacial separation and load: A general theory of contact mechanics. Phys. Rev. Lett., 99:125502(4), 2007.

M. Scaraggi and B. N. J. Persson. Friction and universal contact area law for randomly rough viscoelastic contacts. Journal of Physics: Condensed Matter, page 105102(7), 2015.

T. Schmidt, M. André, and G. Poll. A transient 2d-finite-element approach for the simulation of mixed lubrication effects of reciprocating hydraulic rod seals. Tribology International, 43:1775 – 1785, 2010.

A. Tiwari, L. Dorogin, M. Tahir, K. W. Stöckelhuber, G. Heinrich, N. Espallargas, and B. N. J. Persson. Rubber contact mechanics: adhesion, friction and leakage of seals. Soft Matter, pages 9103–9121, 2017.

Eleuterio F Toro. Riemann solvers and numerical methods for fluid dynamics: a practical introduction. Springer Science & Business Media, 2013.

Tomasz Woloszynski, Pawel Podsiadlo, and Gwidon W Stachowiak. Efficient solution to the cavitation problem in hydrodynamic lubrication. Tribology Letters, 58:18, 2015.

Downloads

Published

2021-05-31

How to Cite

Bauer, N., Rambaks, A., Müller, C., Murrenhoff, H., & Schmitz, K. (2021). Strategies for Implementing the Jakobsson-Floberg-Olsson Cavitation Model in EHL Simulations of Translational Seals. International Journal of Fluid Power, 22(2), 199–232. https://doi.org/10.13052/ijfp1439-9776.2223

Issue

2021: Vol 22 Iss 2

Section

GFPS 2020