Page 641 - B2B All Year Round Vol.8
P. 641

Customer story: Audi
                         Structure and acoustic



                         trim mass optimisation









                         Challenge



                         Find the optimised trim package solution to
                         meet interior noise levels while respecting
                         restrictive weight and new space constraints
                         due to batteries.












                                                                   Solution



                                                                   MSC Nastran PEM topography optimisation
                                                                   of the structure considering trim component
                                                                   effects. Material properties of trim components
                                                                   were optimised with Actran.









                         Benefits



                         The structure was optimised accurately
                         considering the trim component effects
                         thanks to MSC Nastran PEM.

                         Sound pressure level was reduced inside the
                         cabin with a trim component mass reduction
                         compared to the initial design.











                   14    Manufacturing Intelligence hexagonmi.com




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