TY - JOUR
T1 - Efficient component-based vibration and power flow analysis of a vehicle structure
AU - Tan, Yung Chang
AU - Lee, Soo Yeol
AU - Castanier, Matthew P.
AU - Pierre, Christophe
PY - 2001
Y1 - 2001
N2 - A case study on the efficient prediction of vibration and power flow in a vehicle structure is presented. The modeling and analysis technique is based on component mode synthesis (CMS). First, the finite element model (FEM) of the entire vehicle structure is partitioned into component models. Then, the Craig-Bampton method is used to assemble a CMS model of the vehicle. The CMS matrices are further reduced by finding . characteristic constraint (CC) modes. A relatively small number of CC modes are selected to capture the primary motion of the interface between components, yielding a highly reduced order model of the vehicle vibration in the low- to mid-frequency range. Using this reduced order model (ROM), the power flow and vibration response of the vehicle is analyzed for several design configurations. A design change in one component structure requires a re-analysis of the FEM for that component only, in order to generate a new ROM of the entire vehicle. It is found that this component-based approach allows efficient evaluation of the effectiveness of the vehicle design changes.
AB - A case study on the efficient prediction of vibration and power flow in a vehicle structure is presented. The modeling and analysis technique is based on component mode synthesis (CMS). First, the finite element model (FEM) of the entire vehicle structure is partitioned into component models. Then, the Craig-Bampton method is used to assemble a CMS model of the vehicle. The CMS matrices are further reduced by finding . characteristic constraint (CC) modes. A relatively small number of CC modes are selected to capture the primary motion of the interface between components, yielding a highly reduced order model of the vehicle vibration in the low- to mid-frequency range. Using this reduced order model (ROM), the power flow and vibration response of the vehicle is analyzed for several design configurations. A design change in one component structure requires a re-analysis of the FEM for that component only, in order to generate a new ROM of the entire vehicle. It is found that this component-based approach allows efficient evaluation of the effectiveness of the vehicle design changes.
UR - http://www.scopus.com/inward/record.url?scp=33646834948&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33646834948&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:33646834948
VL - 28
SP - 103
EP - 109
JO - American Society of Mechanical Engineers, Noise Control and Acoustics Division (Publication) NCA
JF - American Society of Mechanical Engineers, Noise Control and Acoustics Division (Publication) NCA
IS - 28
ER -