Aeroelastic Analysis of Supersonic Airfoil with Hysteretic Nonlinearities

Ming Xia Fang

doi:10.4028/www.scientific.net/AMM.141.180

Paper Titles

A Nonlinear PID Controller for Electro-Hydraulic Servo System Based on PSO Algorithm
p.157

A Stochastic-Based Method for Finite Element Model Validation
p.162

Abnormal Noise Diagnosis of Internal Combustion Engine Using Wavelet Spatial Correlation Filter and Symmetrized Dot Pattern
p.168

Adaptive Quadrant Error Compensation of Embedded CNC System Based on ARM and DSP
p.174

Aeroelastic Analysis of Supersonic Airfoil with Hysteretic Nonlinearities
p.180

An Algorithm for Space Tool Compensation Used in Five-Axis Numerical Control System
p.186

An Effective Method for Determining Finite Element Model Parameters of Rotor Elastic Support System
p.191

An Interface Design of Communication between PC104 and DSP Based on Dual-Port RAM
p.198

Analysis and Simulation of Screw Joint in CNC Machine Tool
p.203

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 141Aeroelastic Analysis of Supersonic Airfoil with...

Aeroelastic Analysis of Supersonic Airfoil with Hysteretic Nonlinearities

Abstract:

Considering nonlinear aerodynamic forces and airfoil structure nonlinearity, aeroelasticity of supersonic airfoil was researched. Using the bifurcation diagram, phase diagram and Poincare map，effect of airfoil aeroelasticity by nonlinear aerodynamic forces and parameters of structural hysteresis was analyzed. Research shows that only consider nonlinear aerodynamic force, systematic motion tends to periodic and quasi- periodic LCO movement, and the vibration amplitude of plunge and pitch movement leap with Ma increasing .When taking into account the nonlinear aerodynamic force and structural nonlinearity, with the change of damping factor, the system will appear subcritical and supercritical flutter, and for the influence of nonlinear structure, movement leap of vibration amplitude does not occur. This means the choice of reasonable structure parameters will help to improve the aeroelastic characteristics of airfoil.

You might also be interested in these eBooks

Functional Manufacturing and Mechanical Dynamics II

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 141)

Pages:

180-185

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.141.180

Citation:

Cite this paper

Online since:

November 2011

Authors:

Ming Xia Fang

Keywords:

Aeroelasticity, Airfoil, Flutter, Hysteresis Nonlinearity

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Marzocca, P., Librescu, L., and Silva, W A., Flutter: Journal of Guidance, Control and Dynamics, Vol. 25 (2002), p.962–970.

DOI: 10.2514/2.4970

Google Scholar

[2] Librescu, L., Marzocca, P., and Silva, W A.: Journal of Spacecraft and Rockets Vol. 39 (2002), p.802–812.

Google Scholar

[3] Laith K Abbas, Q Chen, Bifurcations and Chaotic Behavior of Hypersonic Lifting Surfaces with Freeplay including the Stiffness and Damping Nonlinearities, 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Con, Hawaii: Honolulu, (2007).

DOI: 10.2514/6.2007-2208

Google Scholar

[4] L C Zhao, Z C Yang: Journal of Sound and Vibration Vol. 138(1990), pp.245-254.

Google Scholar

[5] Lee B H K, L Liu, K W Chung: Journal of Sound and Vibration Vol. 281 (2005), pp.699-717.

Google Scholar

[6] Y H Zhao, H Y Hu: Acta aeronautica ET astronautia sinica Vol. 24 (2003), pp.521-525.

Google Scholar

[7] Lee B H K, Tron A: Journal of Aircraft Vol. 26 (1989), pp.781-786.

Google Scholar

[8] Gu Yingsong, Yang Zhichun: Mechanical Science and Technology Vol. 8(2006), pp.900-904.

Google Scholar

[9] Li Daochun, Xiang yinwu: Acta aeronautica et astronautica sinica Vol. 28(2007), pp.600-604.

Google Scholar

[10] Y.C. Fung, An Introduction to the Theory of Aeroelasticity, Dover, New York, (1993).

Google Scholar