Archive




Volume 4, Issue 2, April 2016, Page: 65-70
Analysis of Aeroelastic Stability of Long Straight Wing with Store System
Yan-Ping Xiao, Southwest Jiaotong University, Chengdu, Sichuan, China; Civil Aviation Flight University of China, Guanghan, Sichuan, China
Yi-Ren Yang, Southwest Jiaotong University, Chengdu, Sichuan, China
Received: Apr. 17, 2016;       Published: Apr. 19, 2016
DOI: 10.11648/j.ijmea.20160402.15      View  4055      Downloads  184
Abstract
The aeroelastic equations of long straight wing with store system are developed in this paper by applying the Hamilton’s Principle. The dynamical model takes the store as an independent degree of freedom and considers the geometric nonlinearity of wing. The system dynamics is numerically simulated by using the Galerkin’s method. Results show that the critical flutter speed becomes largest when the store locates at wingtip and around 40% half chord before the elastic axis. The critical flutter speed will decrease as the wing-store joint rigidity decreases. On the other hand, it is shown that sudden change of flutter frequency might occur when the wing-store joint rigidity increases. Moreover, numerical results indicate buckling boundary is independent of store parameters. When the joint rigidity is relatively small, the system flutter occurs first. When the joint rigidity is relatively large, buckling occurs first. With the presence of geometric nonlinearity and increasing flow speed, the system behavior will evolve from limit cycle oscillation, to quasi-periodical motion and eventually to chaos.
Keywords
Wing, Store, Stability, Geometric Nonlinearity, Flutter, Buckling
To cite this article
Yan-Ping Xiao, Yi-Ren Yang, Analysis of Aeroelastic Stability of Long Straight Wing with Store System, International Journal of Mechanical Engineering and Applications. Vol. 4, No. 2, 2016, pp. 65-70. doi: 10.11648/j.ijmea.20160402.15
Reference
[1]
Yang Y R. KBM method of analyzing limit cycle flutter of a wing with an external store an d comparison with a wind tunnel test [J]. Journal of Sound and Vibration, 1995, 187(2): 271-280.
[2]
Yang Zhichun, Zhao Lingcheng. The effects of pylon stiffness on the flutter of wing/store system [J]. Chinese Journal of Applied Mechanics, 1993, 6:1-7.
[3]
Zhang Jian, Xiang Jinwu. Stability of high-aspect-ratio flexible wings loaded by a lateral follower force [J]. Acta Aeronautica and Astronautica Sinica, 2010, 31(11): 2115-2122.
[4]
WANG Ganglin, XIE Changchuan. Flutter analysis with the thrust effects of engine under wing [J]. Aeronautical Science and Technology, 2014, 25(06): 22-27.
[5]
Xu Jun, Ma Xiaoping. Flutter analysis of a high-aspect-ratio wing with external store [J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(4): 636-640.
[6]
Y. M. Chen, J. K. Liu, G. Meng. An incremental method for limit cycle oscillations of an airfoil with an external store [J]. International Journal of Non-Linear Mechanics 47 (2012) 75–83.
[7]
S. A. Fazelzadeh, A. Mazidi, H. Kalantari. Bending-torsional flutter of wings with an attached mass subjected to a follower force [J]. Journal of Sound and Vibration 323 (2009) 148–162.
[8]
Chakradhar Byreddy, Ramana V. Grandhi2, and Philip Beran. Dynamic Aeroelastic Instabilities of an Aircraft Wing with Underwing Store in Transonic Regime [J]. Journal of Aerospace Engineering, Vol. 18, No. 4, October 1, 2005, 206–214.
[9]
D. M. Tang, E. H. Dowell. Effects of geometric structural nonlinearity on flutter and limit cycle oscillations of high-aspect-ratio wings [J]. Journal of Fluids and Structures 19 (2004) 291–306.
[10]
A. Mazidi and S. A. Fazelzadeh. Flutter of a Swept Aircraft Wing with a Powered Engine [J]. Journal of Aerospace Engineering, Vol. 23, No. 4, October 1, 2010, 243–250.
[11]
Xu Jun, Ma Xiaoping. Flutter analysis of a high-aspect-ratio wing with external store [J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(4): 636-640.
Browse journals by subject