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Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir

Blended wing-body (BWB) aircraft concept has its body „blended” with the wing in smooth transition. Unlike conventional aircraft design, BWB aircraft”s body produces lift force and this causes large impact on the flight dynamics and stability. This thesis focuses on flight dynamics of a small unmann...

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Main Author: Mohd Nasir, Rizal Effendy
Format: Book Section
Language:English
Published: Institute of Graduate Studies, UiTM 2014
Subjects:
Malaysia
Online Access:http://ir.uitm.edu.my/id/eprint/19206/1/ABS_RIZAL%20EFFENDY%20MOHD%20NASIR%20TDRA%20VOL%205%20IGS_14.pdf
http://ir.uitm.edu.my/id/eprint/19206/
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spelling my.uitm.ir.192062018-06-12T02:06:09Z http://ir.uitm.edu.my/id/eprint/19206/ Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir Mohd Nasir, Rizal Effendy Malaysia Blended wing-body (BWB) aircraft concept has its body „blended” with the wing in smooth transition. Unlike conventional aircraft design, BWB aircraft”s body produces lift force and this causes large impact on the flight dynamics and stability. This thesis focuses on flight dynamics of a small unmanned aerial vehicle (UAV) with BWB configuration incorporating a set of canard as longitudinal control surface. The objective is to predict the flight dynamics and stability behaviour of UiTM”s Blended Wing-Body (BWB) unmanned aerial vehicle (UAV) with canard as control surface, known as Baseline- II E-2, in longitudinal mode with classical-approach stability augmentation to achieve level 1 phugoid and short-period modes flying qualities (restricted to damping ratios) as stated in MIL-F-8785C standard. This study proposes simple scheduled feedback gains to the canard. Wind tunnel experiments, computational simulations and empirical estimations were conducted to characterize its aerodynamics and to come up with its aerodynamic mathematical model for flight dynamics derivatives calculation. The flight dynamics model was derived to become Model-N state-space representation and compared to established models. Transient response to a unit step canard input was simulated using these models for flight conditions inside the airplane operating flight envelope (OFE) within its allowed angle of attacks. It was found that the BWB airplane without SAS, despite being statically and dynamically stable, has poor flying qualities for both short-period and phugoid modes. Institute of Graduate Studies, UiTM 2014 Book Section PeerReviewed text en http://ir.uitm.edu.my/id/eprint/19206/1/ABS_RIZAL%20EFFENDY%20MOHD%20NASIR%20TDRA%20VOL%205%20IGS_14.pdf Mohd Nasir, Rizal Effendy (2014) Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir. In: The Doctoral Research Abstracts. IPSis Biannual Publication, 5 (5). Institute of Graduate Studies, UiTM, Shah Alam.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Malaysia
spellingShingle Malaysia
Mohd Nasir, Rizal Effendy
Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir
description Blended wing-body (BWB) aircraft concept has its body „blended” with the wing in smooth transition. Unlike conventional aircraft design, BWB aircraft”s body produces lift force and this causes large impact on the flight dynamics and stability. This thesis focuses on flight dynamics of a small unmanned aerial vehicle (UAV) with BWB configuration incorporating a set of canard as longitudinal control surface. The objective is to predict the flight dynamics and stability behaviour of UiTM”s Blended Wing-Body (BWB) unmanned aerial vehicle (UAV) with canard as control surface, known as Baseline- II E-2, in longitudinal mode with classical-approach stability augmentation to achieve level 1 phugoid and short-period modes flying qualities (restricted to damping ratios) as stated in MIL-F-8785C standard. This study proposes simple scheduled feedback gains to the canard. Wind tunnel experiments, computational simulations and empirical estimations were conducted to characterize its aerodynamics and to come up with its aerodynamic mathematical model for flight dynamics derivatives calculation. The flight dynamics model was derived to become Model-N state-space representation and compared to established models. Transient response to a unit step canard input was simulated using these models for flight conditions inside the airplane operating flight envelope (OFE) within its allowed angle of attacks. It was found that the BWB airplane without SAS, despite being statically and dynamically stable, has poor flying qualities for both short-period and phugoid modes.
format Book Section
author Mohd Nasir, Rizal Effendy
author_facet Mohd Nasir, Rizal Effendy
author_sort Mohd Nasir, Rizal Effendy
title Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir
title_short Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir
title_full Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir
title_fullStr Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir
title_full_unstemmed Longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / Rizal Effendy Mohd Nasir
title_sort longitudinal flight dynamics and stability of blended wing-body unmanned aerial vehicle with canard as control surface / rizal effendy mohd nasir
publisher Institute of Graduate Studies, UiTM
publishDate 2014
url http://ir.uitm.edu.my/id/eprint/19206/1/ABS_RIZAL%20EFFENDY%20MOHD%20NASIR%20TDRA%20VOL%205%20IGS_14.pdf
http://ir.uitm.edu.my/id/eprint/19206/
_version_ 1685649181525409792
score 13.211869

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