Title of article :
Calculation of coupled modes of fluid-structure systems by pseudo symmetric subspace iteration method
Author/Authors :
Lotfi, V Department of Civil and Environmental Engineering - Amirkabir University of Technology, Tehran , Aftabi Sani, A Department of Civil Engineering - Ferdowsi University of Mashhad, Mashhad
Abstract :
An effcient technique is proposed for calculation of coupled modes of
fluidstructure
interaction systems. The algorithm was developed with the symmetric matrix
operation mentality such that apparently a symmetric eigen-problem was being solved. It
was proven that each left eigen-vector was related to the corresponding right eigen-vector
through a simple relation. Therefore, the subsequent transient analysis could readily be
performed. Overall, the method seemed very effcient and was ideal to employ in generalpurpose
nite element programs for solving the above-mentioned eigen-problems.
Keywords :
Eigen-problem , Fluid-structure interaction , Pseudo symmetric technique , Subspace iteration method , Coupled modes
Journal title :
Scientia Iranica(Transactions A: Civil Engineering)
