000004139 001__ 4139
000004139 005__ 20141118153334.0
000004139 04107 $$acze
000004139 046__ $$k2004-05-10
000004139 100__ $$aŠvancara, P.
000004139 24500 $$aStatistical and sensitivity analysis of determination of SEA coupling loss factors using a dual modal formulation

000004139 24630 $$n10.$$pEngineering Mechanics 2004
000004139 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Prague
000004139 506__ $$arestricted
000004139 520__ $$2eng$$aStatistical Energy Analysis (SEA) is suitable method for analysis of sound and vibration in high-frequency range, but to build a reliable SEA model is necessary correctly determine individual SEA parameters. Especially for subsystems with complex geometry and material may be desirable to use experimental or numerical methods to identify their parameters. In this paper dual modal formulation and Final Element Method (FEM) modal information are used for evaluation of coupling loss factor (CLF). It allows CLF to be determined only from the knowledge of modes of the uncoupled systems. Methodology is illustrated on examples of two connected beams and plates and compared with analytical travelling wave solution. Furthermore are presented statistical and sensitivity analysis of this approach based on Monte Carlo method.

000004139 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004139 653__ $$a

000004139 7112_ $$aEngineering Mechanics 2004$$cSvratka (CZ)$$d2004-05-10 / 2004-05-13$$gEM2004
000004139 720__ $$aŠvancara, P.
000004139 8560_ $$ffischerc@itam.cas.cz
000004139 8564_ $$s394014$$uhttps://invenio.itam.cas.cz/record/4139/files/T-Svancara-Pavel.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000004139 962__ $$r4009
000004139 980__ $$aPAPER