Synthetic jet actuators are promising Active Flow Control (AFC) devices which could lead to saving millions of dollars in fuel consumption each year. The Bimorph piezoelectric actuators are an attractive alternative to other type of actuators as active diaphragms and are the focus of this work. Among the properties of a Bimorph actuator, a number of geometrical and physical external factors may...

Recently, AIRBUS and ONERA were involved in the ESACS (Enhanced Safety Assessment for Complex Systems) European project. The aim of this project was to investigate new safety assessment techniques based on the use of formal design languages and associated tools. Two case-studies based on AIRBUS aircraft were used to validate the approach. Both a complete hydraulic system and an electric system ...

We describe experiments to devise machine learning methods for the construction of control systems by observing how humans perform control tasks. The present technique uses a propositional learning system to discover rules for flying an aircraft in a flight simulation program. We discuss the problems encountered and present them as a challenge for researchers in Inductive Logic Programming. Ove...

This paper describes the results of a study where two on-line parameter identification (PID) methods are compared for application within a fault tolerant flight control system. One of the PID techniques is time-domain based while the second is featured in the frequency domain. The time domain method was directly suitable for the on-line estimates of the dimensionless aircraft stability derivati...

Open AccessHistory of Key TechnologiesFlight Controls Otto Lilienthal’s Experimental Monoplane from 1895Markus Raffel, Felix Wienke, Clemens Schwarz and Andreas DillmannMarkus Raffel https://orcid.org/0000-0002-3340-9115DLR, German Aerospace Center, 37073 Göttingen, Germany*Head Department, DLR Helicopter Aerodynamics, Institute Aerodynamics Flow Technology; also Professor, Turbomachinery Fluid...

The primary intent of this invited presentation at the International Workshop on Wind Engineering and Sciences is to discuss new developments in commercial wind engineering, to pose some questions that may (hopefully) lead to some conversations between attendees, and perhaps to speculate on the future of our peculiar specialty. Many of us gather every four years at the International Conference ...

This is a book review of Silver Screen Buddha, Buddhism in Asian and Western Film by Sharon A. Suh. This book review is available in Journal of Religion & Film: http://digitalcommons.unomaha.edu/jrf/vol19/iss2/4 For anyone interested in the growing study of Buddhism and film, I recommend Sharon A. Suh’s Silver Screen Buddha: Buddhism in Asian and Western Film. This is the third study in English...