Featured Research

from universities, journals, and other organizations

Engineering Modifications Enhance Aircraft Safety

Date:
February 24, 2007
Source:
University of Leicester
Summary:
Modifications of an aircraft control system developed by University of Leicester engineers, have been tested by flight test engineers from the German Aerospace Center (DLR) and German Air Force test pilots.

Modifications of an aircraft control system developed by University of Leicester engineers, have been tested by flight test engineers from the German Aerospace Center (DLR) and German Air Force test pilots.

Related Articles


The Leicester modifications have effectively compensated for an inherent design limitation that has led to several disastrous crashes - most notably the JAS-29 during an air show in Stockholm and the YF-22.

Man-machine interactions in aircraft can lead to so-called pilot involved/in-the-loop oscillations (PIOs) which can compromise aircraft performance and safety. PIOs have therefore become a major concern for the European and US aerospace industry.

The University of Leicester Department of Engineering has been a member of the European GARTEUR (Group for Aeronautical Research and Technology in Europe) Action Group AG15 for the past three years. The group's aim is to develop techniques which allow the prediction and prevention of PIOs.

Over the past several years Leicester has developed control design techniques ("anti-windup compensators") which can be added to existing aircraft control systems to lessen susceptibility to PIOs. Extensive mathematical development and computer simulation has matured these techniques but until summer 2006 no in-flight testing was performed.

Recently, a team of engineers from Leicester, the German Aerospace Center (DLR) and test pilots from the German Armed Forces Flight Test Centre (WTD61) performed in-flight tests of these "PIO prevention" compensators on the DLR ATTAS (Advanced Technologies Testing Aircraft System) experimental aircraft.

During this flight test campaign, termed SAIFE (Saturation Alleviation In-Flight Experiment), the ATTAS aircraft was deployed in scenarios which were expected to lead to PIO type events and data and pilot comments were collected both with and without the Leicester compensators engaged.

University of Leicester engineer Dr Matthew Turner commented: "Pilot comments showed that with the Leicester compensators engaged, the aircraft was significantly less PIO prone than without. Moreover, the aircraft was deemed to have more predictable handling qualities overall, which was an added bonus.

"In fact in every single manoeuvre the aircraft performed as well as or better than normal, when the Leicester compensators were engaged."

The results were well-received within the GARTEUR action group and further flight tests are planned - again jointly with DLR and WTD61 - in April 2007.


Story Source:

The above story is based on materials provided by University of Leicester. Note: Materials may be edited for content and length.


Cite This Page:

University of Leicester. "Engineering Modifications Enhance Aircraft Safety." ScienceDaily. ScienceDaily, 24 February 2007. <www.sciencedaily.com/releases/2007/02/070223142925.htm>.
University of Leicester. (2007, February 24). Engineering Modifications Enhance Aircraft Safety. ScienceDaily. Retrieved March 5, 2015 from www.sciencedaily.com/releases/2007/02/070223142925.htm
University of Leicester. "Engineering Modifications Enhance Aircraft Safety." ScienceDaily. www.sciencedaily.com/releases/2007/02/070223142925.htm (accessed March 5, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Thursday, March 5, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Gas Production Cut on Earthquake Fears

Gas Production Cut on Earthquake Fears

Reuters - Business Video Online (Mar. 5, 2015) — The Dutch government has cut production at Europe&apos;s largest gas field in Groningen amid concerns over earthquakes which are damaging local churches. As Amy Pollock reports the decision - largely politically-motivated - could have big economic conseqeunces. Video provided by Reuters
Powered by NewsLook.com
Star Wars-Inspired Prototype Creates Holographic Display

Star Wars-Inspired Prototype Creates Holographic Display

Reuters - Innovations Video Online (Mar. 5, 2015) — A prototype holographic display named Leia - after the Star Wars princess who appeared in holographic form asking Obi-Wan Kenobu for help - is demonstrated at the Mobile World Congress in Barcelona. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
IKEA and Samsung Launch Embedded Wireless Charging Range

IKEA and Samsung Launch Embedded Wireless Charging Range

Reuters - Innovations Video Online (Mar. 5, 2015) — Samsung and IKEA hope their new embedded wireless charging products, launched at Barcelona&apos;s Mobile World Congress, will tempt consumers eager for plugless power. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
Samsung Unveils $30,000 'Dream Doghouse'

Samsung Unveils $30,000 'Dream Doghouse'

Buzz60 (Mar. 5, 2015) — On display at the Crufts dog show in England, the &apos;dog kennel of the future&apos; comes with features like a doggie treadmill and Samsung tablet. Mike Janela (@mikejanela) has more. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins