Ralf Keimer
YOU?
Author Swipe
View article: Instrumentation and Ground Testing of a Composite Elastic Wing Wind Tunnel Model
Instrumentation and Ground Testing of a Composite Elastic Wing Wind Tunnel Model Open
The Goal of the Project GRETEL is to build a composite elastic wing wind tunnel model. This model incorporates morphing aerodynamical structures and is to be delivered for testing in the Large Low speed Facility (LLF) wind tunnel of DNW. I…
View article: Manufacturing, Assembly and Integration of a Large Scale Composite Wing Wind Tunnel Model and the Design and Implementation of an associated Measurement System
Manufacturing, Assembly and Integration of a Large Scale Composite Wing Wind Tunnel Model and the Design and Implementation of an associated Measurement System Open
Building a wind tunnel model with an innovative aerodynamic design including a laminar airfoil concept and morphing parts requires a suitable manufacturing and assembly plan to transfer the virtual model to concrete reality. The contributi…
View article: X-ray Computed Tomography Method for Macroscopic Structural Property Evaluation of Active Twist Composite Blades
X-ray Computed Tomography Method for Macroscopic Structural Property Evaluation of Active Twist Composite Blades Open
This paper describes an evaluation of the structural properties of the next-generation active twist blade using X-ray computed tomography (CT) combined with digital image processing. This non-destructive testing technique avoids the costly…
View article: Review of Adaptive Shock Control Systems
Review of Adaptive Shock Control Systems Open
Drag reduction plays a major role in future aircraft design in order to lower emissions in aviation. In transonic flight, the transonic shock induces wave drag and thus increases the overall aircraft drag and hence emissions. In the past d…
View article: Morphing Wing Droop Nose with Large Deformation: Ground Tests and Lessons Learned
Morphing Wing Droop Nose with Large Deformation: Ground Tests and Lessons Learned Open
A design for a new high lift system that features a morphing wing leading edge “droop nose” has the potential to generate high lift coefficients whilst mitigating airframe noise emissions. This seamless, continuous, and stepless flexible d…
View article: Active Primary Spring for the Next Generation Train
Active Primary Spring for the Next Generation Train Open
In this paper the design of an active primary spring for a single-wheel single running-gear railroad carriage is
\ndiscussed. The setup is based on a leaf-spring design, which is implemented as fibre-composite part, combined
\nwith piezo-c…
View article: Experimental investigation and validation of structural properties of a new design for active twist rotor blades
Experimental investigation and validation of structural properties of a new design for active twist rotor blades Open
View article: Ergebnisse experimenteller Strukturuntersuchungen an einer elastisch verformbaren Droop-nose mit Festkörperkinematiken
Ergebnisse experimenteller Strukturuntersuchungen an einer elastisch verformbaren Droop-nose mit Festkörperkinematiken Open
m FP7 Projekt NOVEMOR wurde eine Droop-Nose an der Vorderkante der Flügelspitze eines Regional-Jets untersucht, die mit einer elastisch verformbaren Glasfaserhaut und Festkörperkine-matiken zur Verformung und somit Anpassung an den Flugzus…
View article: Avoiding defects in manufacturing processes: A review for automated CFRP production
Avoiding defects in manufacturing processes: A review for automated CFRP production Open