TY - GEN
T1 - Closing the mid-frequency-gap
T2 - 16th International Congress on Sound and Vibration 2009, ICSV 2009
AU - Buchschmid, Martin
AU - Müller, Gerhard
AU - Kropp, Andreas
PY - 2009
Y1 - 2009
N2 - In the low frequency range (under 200 Hz) the Finite Element Analysis (FEA) is the current standard design tool for virtual acoustic (and vibration) prognosis. In the middle frequency range, between 200 Hz and 800 Hz, neither the FEA nor the SEA approaches are able to provide realistic result predictions, leading to the existence of the so-called mid-frequency gap. This paper introduces the so called SEA-like approach in which an inverse SEA model is deduced using a standard FEA vehicle floor pan model. The approach closes the mid-frequency gap by adopting the vantages and neglecting the disadvantages of both SEA and FEA, and allows acoustic concept decisions in a very early design phase.
AB - In the low frequency range (under 200 Hz) the Finite Element Analysis (FEA) is the current standard design tool for virtual acoustic (and vibration) prognosis. In the middle frequency range, between 200 Hz and 800 Hz, neither the FEA nor the SEA approaches are able to provide realistic result predictions, leading to the existence of the so-called mid-frequency gap. This paper introduces the so called SEA-like approach in which an inverse SEA model is deduced using a standard FEA vehicle floor pan model. The approach closes the mid-frequency gap by adopting the vantages and neglecting the disadvantages of both SEA and FEA, and allows acoustic concept decisions in a very early design phase.
UR - http://www.scopus.com/inward/record.url?scp=84871447107&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84871447107
SN - 9781615677368
T3 - 16th International Congress on Sound and Vibration 2009, ICSV 2009
SP - 299
EP - 306
BT - 16th International Congress on Sound and Vibration 2009, ICSV 2009
Y2 - 5 July 2009 through 9 July 2009
ER -