Hubertus Murrenhoff
RWTH Aachen University
340 Papers
1K Citations
Hubertus Murrenhoff is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: Piston & Fluid power. The author has an hindex of 16, co-authored 340 publications. Previous affiliations of Hubertus Murrenhoff include Korea Institute of Science and Technology & Institute of Food and Agricultural Sciences.
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Papers
Measurement of Effective Bulk Modulus for Hydraulic Oil at Low Pressure
Sunghun Kim,Hubertus Murrenhoff +1 more
TL;DR: In this article, the authors verified the theoretical equation for effective bulk modulus based on measurements of pressure change as a function of volume change at low pressures, varying temperature, entrained air content, and type of state change.
87
Simulation and experimental validation of translational hydraulic seal wear
TL;DR: In this article, the mutual dependency of friction, fluid film and wear is simulated employing the wear model of Archard, and the calculation of the fluid film is based on the Reynolds equation, while the model of Persson is applied for the solid contact.
61
Modelling and dynamics of a servo-valve controlled hydraulic motor by bondgraph
K. Dasgupta,Hubertus Murrenhoff +1 more
TL;DR: In this paper, a model of a closed-loop servo-valve controlled hydro-motor drive system has been made using Bondgraph simulation technique (Thoma, 1990) and the validation of the model is obtained first by the established results of Gordic et al., 2004.
54
Biodegradability testing of synthetic ester lubricants--effects of additives and usage.
TL;DR: The optimised biodegradability test system "O2/CO2 Headspace Test with GC-TCD" is used for the assessment of synthetic ester lubricants and the results clearly show that the mineral oil is far lessBiodegradable than the ester oils and that their biodegradation is not affected by usage.
51
STEAM – a hydraulic hybrid architecture for excavators
Milos Vukovic,Hubertus Murrenhoff,Roland Leifeld +2 more
- 22 Mar 2016
TL;DR: In this article, the authors present a new hydraulic system for mobile machinery called STEAM, which aims to reduce both the hydraulic system losses as well as those of the internal combustion engine by using a hybrid hydraulic architecture with accumulators.