Aircraft operations at low altitudes often are affected by strong gusts and turbulence producing additional aerodynamic forces and moments. This results in extra aircraft accelerations and therefore in an unpleasant impact on passenger comfort and pilot workload as well as in extra structural loads. Active Control Technology is able to suppress these effects partly. The knowledge about the potential for improvement, the parameters of influence and the performance requirements for such gust alleviation systems is still quite small. Since the mid-seventies Dornier and DLR (Institute of Flight Mechanics) have been working together on BMFT programs developing systems to improve the ride quality in gusty weather. The developed Open-Loop Gust Alleviation System OLGA was investigated through dynamic wind tunnel experiments and flight-tested onboard the experimental aircraft Do 128 TNT. This research was continued by DLR developing the Load Alleviation and Ride Smoothing System LARS using the modified VFW 614 aircraft ATTAS (Advanced Technologies Testing Aircraft System). The Deutsche Aerospace Dornier Luftfahrt GmbH has concentrated on simulation studies for their aircraft types Do 228 and Do 328. The presented paper provides a brief description of the advantages of overall gust management systems considering lift, drag and pitch control. The following topics will be presented in detail: (1) the basic flight mechanics of gust load alleviation; (2) the design of integrated gust management systems; (3) simulation and flight test results; and (4) lessons learned and general perspectives.
Advanced Gust Management Systems: Lessons Learned and Perspectives
1995
17 pages
Report
No indication
English
Advanced Gust Management Systems - Lessons Learned and Perspectives
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