Aeroelastic analysis of a span morphing wing with moving loads

2022 ◽  
Author(s):  
Debashis Singha ◽  
Senthil Murugan
2007 ◽  
Author(s):  
Roeland De Breuker ◽  
Mostafa Abdalla ◽  
Zafer Gürdal ◽  
Douglas Lindner

Author(s):  
NATSUKI TSUSHIMA ◽  
TOMOHIRO YOKOZEKI ◽  
WEIHUA SU ◽  
HITOSHI ARIZONO

2015 ◽  
Vol 75 (8) ◽  
Author(s):  
N.I. Ismail ◽  
A.H. Zulkifli ◽  
M. Hisyam Basri ◽  
R.J. Talib ◽  
H. Yusoff

The manoeuvrability performance of a twist morphing MAV has been the main interest for the past researches. However, aerodynamic behaviour of a twist morphing wing is not fully explored due to limited MAV wing size, limited energy budgets, complicated morphing mechanism, and complex aerodynamic-wing structural interaction. Therefore, the effect of a twist morphing wing mobility on the lift distribution of MAV wing is still remained unknown. Thus, present work was carried out to compare the lift performance between a twist morphing wing with membrane and rigid MAV wing design. A quasi-static aeroelastic analysis by using the Ansys-Fluid Structure Interaction (FSI) method is utilized in current works to calculate the lift performance for each MAV wing design. Each MAV wing has identical wing dimension except for twist morphing wing where a 3N morphing force was imposed on the wing to produce the twist mobility. The lift results show that twist morphing wing able to produce (5% to 20%) higher lift magnitude compared to the membrane and rigid wing for every angle attack cases at pre-stall angle. However, twist morphing wing had slightly suffered from (at least 1°) earlier stall angle and produced almost similar maximum lift coefficient magnitude to the membrane wing  


2019 ◽  
Vol 88 ◽  
pp. 244-257 ◽  
Author(s):  
Natsuki Tsushima ◽  
Tomohiro Yokozeki ◽  
Weihua Su ◽  
Hitoshi Arizono

2022 ◽  
Author(s):  
David M. Boston ◽  
Francis R. Phillips ◽  
Todd Henry ◽  
Andres F. Arrieta

2006 ◽  
Vol 11 (3) ◽  
pp. 293-318 ◽  
Author(s):  
M. Zribi ◽  
N. B. Almutairi ◽  
M. Abdel-Rohman

The flexibility and low damping of the long span suspended cables in suspension bridges makes them prone to vibrations due to wind and moving loads which affect the dynamic responses of the suspended cables and the bridge deck. This paper investigates the control of vibrations of a suspension bridge due to a vertical load moving on the bridge deck with a constant speed. A vertical cable between the bridge deck and the suspended cables is used to install a hydraulic actuator able to generate an active control force on the bridge deck. Two control schemes are proposed to generate the control force needed to reduce the vertical vibrations in the suspended cables and in the bridge deck. The proposed controllers, whose design is based on Lyapunov theory, guarantee the asymptotic stability of the system. The MATLAB software is used to simulate the performance of the controlled system. The simulation results indicate that the proposed controllers work well. In addition, the performance of the system with the proposed controllers is compared to the performance of the system controlled with a velocity feedback controller.


AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 843-850
Author(s):  
Seong M. Jeon ◽  
In Lee

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