Stephan Neumann
RWTH Aachen University
35 Papers
53 Citations
Stephan Neumann is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: Bearing (mechanical) & Lubrication. The author has an hindex of 4, co-authored 32 publications.
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Papers
Determination of Hydraulic Losses in Radial Cylindrical Roller Bearings Using CFD Simulations
TL;DR: In this article, an efficient method for the investigation of flow conditions and load independent losses in roller bearings using CFD simulations is proposed, which allows the use of a high mesh resolution for the bearing chamber by simultaneously considering the adjacent construction.
39
CFD simulation of elastohydrodynamic lubrication problems with reduced order models for fluid-structure interaction
TL;DR: In this paper, the elastic solids are represented by reduced finite element (FE) models in order to decrease the calculation time while keeping the possibility to simulate complex geometries and materials.
16
Condition monitoring of roller bearings using acoustic emission
Daniel Cornel,Francisco Gerardo Antonio Gutierrez Guzman,Georg Jacobs,Stephan Neumann +3 more
- 05 Mar 2021
TL;DR: In this article, an acoustic emission based condition monitoring system is applied to roller bearing test rigs with the aim of identifying critical operating conditions before bearing failures occurs, and a comparison regarding detection times is carried out with a traditional vibration-based condition monitoring systems, with focus on premature bearing failures such as white etching cracks.
Optimization Workflows for Linking Model-Based Systems Engineering (MBSE) and Multidisciplinary Analysis and Optimization (MDAO)
TL;DR: For the first time, the MDAO problem was modeled as a workflow using activity diagrams in the MBSE system model, which found the design variable values that allow for the best tradeoff of objectives.
Modular System Modeling for Quantitative Reliability Evaluation of Technical Systems
TL;DR: A method for the quantitative evaluation of the reliability of technical systems is proposed and applied to a heavy-duty power shift transmission and calculation methods for life expectancy of common machine elements in technical systems are evaluated.