Instability analysis of fluid and elastic panel system based on the differential quadrature method

Author

Peng, Li ; Yiren, Yang

Author_Institution

Nat. Traction Power Lab., Southwest Jiaotong Univ., Chengdu, China

fYear

2011

fDate

15-17 July 2011

Firstpage

2258

Lastpage

2262

Abstract

Based on the differential quadrature (DQ) method, a new algorithm for the instability analysis of fluid and elastic panel system is presented in this paper. The governing equations of both subsonic compressible airflow and two-dimensional elastic panel are discretized using the differential quadrature method at the same grid points. The coupled fluid-panel equation is analyzed by using eigenvalue theory and the instability characteristics of panels with differential boundary conditions are given. The results show: the elastic panel which is simply support or clamped at both ends undergoes divergence but not flutter; this algorithm has the advantages of producing highly accurate solutions with minimal computational effort.

Keywords

aerodynamics; clamps; compressible flow; eigenvalues and eigenfunctions; elasticity; flow instability; integration; structural panels; subsonic flow; coupled fluid-panel equation; differential quadrature method; eigenvalue theory; fluid instability analysis; subsonic compressible airflow; two-dimensional elastic panel system; Accuracy; Aerodynamics; Boundary conditions; Computational efficiency; Equations; Mathematical model; Stability analysis; Differential quadrature (DQ) method; divergence; elastic panels; instability; subsonic flow;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5987429

Filename

5987429