Khalil, Ahmed Khalil Ali (2017) Flight dynamics, handling and ride qualities of a flexible aircraft. DLRK 2017, 05.-07. Sep 2017, Munich, Germany.
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Abstract
The effects of structural flexibility on aircraft flight dynamics and handling qualities are investigated. To do so, the equations of motion of an elastic vehicle are presented and then solved by means of trimming/simulation routines. The simulation results of a linear model are then compared with those of a nonlinear model of DLR’s Discus-2c sailplane. To further demonstrate the flexibility effects, two sets of modified aircraft models are developed. The first set alters the modal frequencies of DLR’s Discus-2c from their nominal values, whereas the second set alters the modal damping. The handling qualities, in terms of modal criteria and as compared to the MIL-STD-1797A, are examined for the first set of the modified aircraft models. With the second set of the modified aircraft models, the ride qualities in terms of acceleration at pilot location and biodynamic effects are examined.
Item URL in elib: | https://elib.dlr.de/115509/ | ||||||
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Document Type: | Conference or Workshop Item (Lecture) | ||||||
Title: | Flight dynamics, handling and ride qualities of a flexible aircraft | ||||||
Authors: |
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Date: | September 2017 | ||||||
Refereed publication: | Yes | ||||||
Open Access: | Yes | ||||||
Gold Open Access: | No | ||||||
In SCOPUS: | No | ||||||
In ISI Web of Science: | No | ||||||
Status: | Published | ||||||
Keywords: | flight dynamics; handling qualities; ride qualities; flexible aircraft; Discus-2c; sailplane; biodynamic coupling | ||||||
Event Title: | DLRK 2017 | ||||||
Event Location: | Munich, Germany | ||||||
Event Type: | national Conference | ||||||
Event Dates: | 05.-07. Sep 2017 | ||||||
Organizer: | Deutsche Gesellschaft für Luft- und Raumfahrt (DGLR) | ||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||
HGF - Program: | Aeronautics | ||||||
HGF - Program Themes: | other | ||||||
DLR - Research area: | Aeronautics | ||||||
DLR - Program: | L - no assignment | ||||||
DLR - Research theme (Project): | L - no assignment | ||||||
Location: | Braunschweig | ||||||
Institutes and Institutions: | Institute of Flight Systems > Flight Dynamics and Simulation | ||||||
Deposited By: | Khalil, Ahmed Khalil Ali | ||||||
Deposited On: | 21 Nov 2017 11:02 | ||||||
Last Modified: | 23 Feb 2019 00:22 |
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