FEM/BEM Studies on the Interior Acoustics of a Car Contents

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Coupled <strong>FEM</strong>/<strong>FEM</strong> computations! Work flowFE structureNASTRAN filesFE meshmesh preparationremoving of unnecessaryelementsclosing of holes…FE mesh„mesh wrapping“passenger compartmentseats…„cavity meshing“BE meshmodesloadsacoustic modelmodel solutionsound fieldLMS Conference Europe, 22. & 23. March 2006www.novicos.de
LMS Conference Europe, 22. & 23. March 2006www.novicos.deCavity Meshing (1)! Generating an acoustic FE mesh (HEXA8 elements)inside a given boundary requires 2 stepsSTEP 1: scan for volumesinside the boundarySTEP 2: generate elements inside the volumesfound in STEP 1 and selected by the user
Page 2: Introduction! Objectives:Investigat
Page 6 and 7: Mesh preparation (3)! Closing of ho
Page 8 and 9: Mesh Wrapping (2)! Leads to BE mesh
Page 11: Transfer of structural eigenmodes!
Page 15: LMS Conference Europe, 22. & 23. Ma
Page 18 and 19: LMS Conference Europe, 22. & 23. Ma
Page 27: LMS Conference Europe, 22. & 23. Ma

FEM/BEM Studies on the Interior Acoustics of a Car Contents

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