TY - JOUR
T1 - On developing new statistical energy methods for the analysis of vibration transmission in complex vehicle structures
AU - Pierre, Christophe
AU - Castanier, Matthew P.
AU - Choi, Sung Bae
PY - 1997
Y1 - 1997
N2 - This paper presents an overview of research being conducted on vibration transmission in complex vehicle structures. Complex structures are assemblages of coupled component systems. Random parameter uncertainties in such structures can dramatically affect the high- to mid-frequency dynamics, mandating a statistical analysis. New statistical energy methods for predicting vibration transmission are explored by relaxing assumptions which limit the applications of current high-frequency techniques. Particular attention is paid to those assumptions that restrict the analysis to higher frequency ranges. A parameter-based approach that provides a more faithful representation of the structure's forced response is presented. For an example system, numerical simulations and analytical approximations based on this approach are shown to provide improved estimates of the average power transmission. This improvement is most significant in the mid-frequency range.
AB - This paper presents an overview of research being conducted on vibration transmission in complex vehicle structures. Complex structures are assemblages of coupled component systems. Random parameter uncertainties in such structures can dramatically affect the high- to mid-frequency dynamics, mandating a statistical analysis. New statistical energy methods for predicting vibration transmission are explored by relaxing assumptions which limit the applications of current high-frequency techniques. Particular attention is paid to those assumptions that restrict the analysis to higher frequency ranges. A parameter-based approach that provides a more faithful representation of the structure's forced response is presented. For an example system, numerical simulations and analytical approximations based on this approach are shown to provide improved estimates of the average power transmission. This improvement is most significant in the mid-frequency range.
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U2 - 10.1080/08905459708905281
DO - 10.1080/08905459708905281
M3 - Article
AN - SCOPUS:0031069503
SN - 0890-5452
VL - 25
SP - 87
EP - 101
JO - Mechanics of Structures and Machines
JF - Mechanics of Structures and Machines
IS - 1
ER -