Title :
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
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;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5987429
