FEM/BEM Studies on the Interior Acoustics of a Car Contents
FEM/BEM Studies on the Interior Acoustics of a Car Contents FEM/BEM Studies on the Interior Acoustics of a Car Contents
LMS Conference Europe, 22. & 23. March 2006www.novicos.deResults (6)! Analysis at 120Hz using Grid ContributionsVelocity v ATFGridcontributionv*ATF
LMS Conference Europe, 22. & 23. March 2006www.novicos.deConclusions! Efficient simulations of interior car acousticsin LMS Virtual.Lab– safe handling of large amount of data– all steps needed to perform a coupled calculation of sound(model preparation, solving, examination of results)carried out in a single CAE tool– many useful commands dedicated to
- Page 2: Introduction! Objectives:Investigat
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- Page 8 and 9: Mesh Wrapping (2)! Leads to BE mesh
- Page 11 and 12: Transfer of structural eigenmodes!
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LMS C<strong>on</strong>ference Europe, 22. & 23. March 2006www.novicos.deC<strong>on</strong>clusi<strong>on</strong>s! Efficient simulati<strong>on</strong>s <strong>of</strong> interior car acousticsin LMS Virtual.Lab– safe handling <strong>of</strong> large amount <strong>of</strong> data– all steps needed to perform a coupled calculati<strong>on</strong> <strong>of</strong> sound(model preparati<strong>on</strong>, solving, examinati<strong>on</strong> <strong>of</strong> results)carried out in a single CAE tool– many useful commands dedicated to <str<strong>on</strong>g>FEM</str<strong>on</strong>g>/<str<strong>on</strong>g>BEM</str<strong>on</strong>g> acoustics:mesh wrapping, cavity meshing, fluid-structure coupling, …! Valuable insights into <strong>the</strong> vibro-acoustics <strong>of</strong> a carcompartment due to unique approaches in VL– Acoustic Transfer Functi<strong>on</strong>s (ATF)– Grid C<strong>on</strong>tributi<strong>on</strong>
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