<응용수학 세미나>
일시: 2008. 12. 16(화), 오후 4:30
장소 : 산업경영동 3층 세미나실 (3221호)
제목: Application for a novel Perturbation Expansion Method
for Coupled Eigenvalue Problem between Acoustic-field & Structure
연사: Deng Li
(University of Kentucky, Departments of Computer Sciences)
Abstract : This talk describes a numerical procedure that is useful in trying to reduce noise in
moving vehicles. The method applies to general domains and realistic
examples that are useful to the automotive industry. A finite element
procedure for an acoustic field in a structure is used to produce and
analyze a nonstandard coupled eigen-pair problem. The method is shown
to be less expensive to set up and use than the method used in the
commercial code NASTRAN by using a standard symmetric acoustic field
and structure for (the decoupled system) eigen-pair respectively.
Numerical examples demonstrate both the adequacy of this methodology
and its useful numerical features.