TY - JOUR
T1 - NVH improvement of vehicle powertrain
AU - Lu, Shouwei
AU - Feng, Huihua
AU - Zuo, Zhengxing
PY - 2012
Y1 - 2012
N2 - This paper provides an investigation to improve vehicle powertrain NVH performance via modification of excitation and radiation system of powertrain. First of all, considering different excitation mechanisms of the powertrain, the excitation forces are analyzed. The FEM/BEM coupled analysis and the acoustic transfer vector (ATV) calculation as well as panel contribution analysis are applied to investigating the acoustic characteristics of the powertrain. Then a hybrid approach which couples the transmission gear profile modification for attenuating gear system excitation and the transmission housing modification for reducing transmission housing noise radiation is proposed to improve powertrain NVH performance. Experiment validation is conducted in order to assess the modified results. The assessment shows that this hybrid approach can effectively predict and reduce powertrain noise and vibration.
AB - This paper provides an investigation to improve vehicle powertrain NVH performance via modification of excitation and radiation system of powertrain. First of all, considering different excitation mechanisms of the powertrain, the excitation forces are analyzed. The FEM/BEM coupled analysis and the acoustic transfer vector (ATV) calculation as well as panel contribution analysis are applied to investigating the acoustic characteristics of the powertrain. Then a hybrid approach which couples the transmission gear profile modification for attenuating gear system excitation and the transmission housing modification for reducing transmission housing noise radiation is proposed to improve powertrain NVH performance. Experiment validation is conducted in order to assess the modified results. The assessment shows that this hybrid approach can effectively predict and reduce powertrain noise and vibration.
UR - http://www.scopus.com/inward/record.url?scp=84881204329&partnerID=8YFLogxK
U2 - 10.4271/2012-01-2007
DO - 10.4271/2012-01-2007
M3 - Conference article
AN - SCOPUS:84881204329
SN - 0148-7191
VL - 8
JO - SAE Technical Papers
JF - SAE Technical Papers
T2 - SAE 2012 Commercial Vehicle Engineering Congress, COMVEC 2012
Y2 - 2 October 2012 through 3 October 2012
ER -