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.

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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.

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Published

2021-05-31

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Section

GFPS 2020