TY  - JOUR
A1  - Bohn, Dieter E.
A1  - Funke, Harald
T1  - Experimental investigations into the nonuniform flow in a 4-stage turbine with special focus on the flow equalization in the first turbine stage
JF  - ASME TURBO EXPO, Proceedings of the ASME Turbo Expo, 2003
Y1  - 2003
SN  - 0-7918-3689-4
N1  - ASME TURBO EXPO 2003, Proceedings, Vol. 6: Turbomachinery, Pt. A, Atlanta, US, Jun 16-19, 2003
SP  - 281
EP  - 289
ER  - 
TY  - JOUR
A1  - Bohn, Dieter E.
A1  - Funke, Harald
A1  - Sürken, Norbert
A1  - Kreitmeier, F.
T1  - Numerical and experimental investigations on endwall contouring in a four-stage turbine
JF  - ASME Turbo Expo Land Sea & Air 2001 : June 4 - 8, 2001, New Orleans, Louisiana / IGTI, International Gas Turbine Institute. American Society of Mechanical Engineers. International Gas Turbine Institute ..
Y1  - 2001
SN  - 0-7918-3528-6
N1  - ASME-Paper 2001-GT-0481
PB  - ASME
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Bohn, Dieter E.
A1  - Funke, Harald
A1  - Gier, Jochen
T1  - Numerical and Experimental Investigations on the Flow in a 4-Stage Turbine with Special Focus on the Development of a Radial Temperature Streak
JF  - ASME Turbo Expo 1999, Indianapolis, USA, 1999
Y1  - 1999
N1  - ASME-Paper 99-GT-027
ER  - 
TY  - JOUR
A1  - Böhnisch, Nils
A1  - Braun, Carsten
A1  - Marzocca, Pierre
A1  - Muscarello, Vincenzo
T1  - Impact of aerodynamic interactions on aeroelastic stability of wing-propeller systems
JF  - Applied Sciences
N2  - This paper presents initial findings from aeroelastic studies conducted on a wing-propeller model, aimed at evaluating the impact of aerodynamic interactions on wing flutter mechanisms and overall aeroelastic performance. The flutter onset is assessed using a frequency-domain method. Mid-fidelity tools based on the time-domain approach are then exploited to account for the complex aerodynamic interaction between the propeller and the wing. Specifically, the open-source software DUST and MBDyn are leveraged for this purpose. The investigation covers both windmilling and thrusting conditions. During the trim process, adjustments to the collective pitch of the blades are made to ensure consistency across operational points. Time histories are then analyzed to pinpoint flutter onset, and corresponding frequencies and damping ratios are identified. The results reveal a marginal destabilizing effect of aerodynamic interaction on flutter speed, approximately 5%. Notably, the thrusting condition demonstrates a greater destabilizing influence compared to the windmilling case. These comprehensive findings enhance the understanding of the aerodynamic behavior of such systems and offer valuable insights for early design predictions and the development of streamlined models for future endeavors.
Y1  - 2024
U6  - https://doi.org/10.3390/app14198709
SN  - 2076-3417
N1  - This article belongs to the Special Issue "Advances in Unsteady Aerodynamics and Aeroelasticity"
VL  - 14
IS  - 19
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Bohn, Dieter E.
A1  - Funke, Harald
A1  - Gier, Jochen
T1  - Temperature jet development in a cross-over channel
JF  - Third European Conference on Turbomachinery - fluid dynamics and thermodynamics : : 2 - 5 March 1999, Royal National Hotel, London, UK / organized by the Energy Transfer and Thermofluid Mechanics Group of the Institution of Mechanical Engineers (IMechE); with support and sponsorship from European Commission / Vol. B.
Y1  - 1999
N1  - C557/158/99 ; IMechE conference transactions 1999-1B
SP  - 671
EP  - 680
PB  - Professional Engineering Publ.
CY  - Bury St. Edmunds
ER  - 
TY  - JOUR
A1  - Ulmer, Jessica
A1  - Braun, Sebastian
A1  - Cheng, Chi-Tsun
A1  - Dowey, Steve
A1  - Wollert, Jörg F.
T1  - A human factors-aware assistance system in manufacturing based on gamification and hardware modularisation
JF  - International Journal of Production Research
N2  - Assistance systems have been widely adopted in the manufacturing sector to facilitate various processes and tasks in production environments. However, existing systems are mostly equipped with rigid functional logic and do not provide individual user experiences or adapt to their capabilities. This work integrates human factors in assistance systems by adjusting the hardware and instruction presented to the workers’ cognitive and physical demands. A modular system architecture is designed accordingly, which allows a flexible component exchange according to the user and the work task. Gamification, the use of game elements in non-gaming contexts, has been further adopted in this work to provide level-based instructions and personalised feedback. The developed framework is validated by applying it to a manual workstation for industrial assembly routines.
KW  - Human factors
KW  - assistance system
KW  - gamification
KW  - adaptive systems
KW  - manufacturing
Y1  - 2023
U6  - https://doi.org/10.1080/00207543.2023.2166140
SN  - 0020-7543 (Print)
SN  - 1366-588X (Online)
PB  - Taylor & Francis
ER  -