TY - JOUR
T1 - Spatial correlation effect of a multidimensional force on vibration suppression
AU - Zhao, Xiao Jian
AU - Ji, Chen
AU - Bi, Si Feng
N1 - Publisher Copyright:
© 2021 Elsevier Masson SAS
PY - 2021/10
Y1 - 2021/10
N2 - The spatial correlation of a multidimensional force produced by different aircraft components is an important factor that affects the structural vibration of aircraft. To predict the structural response by external forces with a certain phase difference, determined by the spatial correlation of external forces, an analytical method based on structural response integration is developed and adopted. The characteristics of the external forces, especially the phase difference of the structural vibration, are investigated to reduce structural vibration by utilizing the spatial correlation of the external forces. Additionally, to suppress structural vibration by a propagation wavefield, corresponding to complex flow excitation, the developed integration method is used to estimate the accuracy of the propagation wavefield replaced by concentrated forces. Finally, a measurement is designed and performed, which further reveals the spatial correlation effect of the external forces on the structural vibration.
AB - The spatial correlation of a multidimensional force produced by different aircraft components is an important factor that affects the structural vibration of aircraft. To predict the structural response by external forces with a certain phase difference, determined by the spatial correlation of external forces, an analytical method based on structural response integration is developed and adopted. The characteristics of the external forces, especially the phase difference of the structural vibration, are investigated to reduce structural vibration by utilizing the spatial correlation of the external forces. Additionally, to suppress structural vibration by a propagation wavefield, corresponding to complex flow excitation, the developed integration method is used to estimate the accuracy of the propagation wavefield replaced by concentrated forces. Finally, a measurement is designed and performed, which further reveals the spatial correlation effect of the external forces on the structural vibration.
KW - Multidimensional force
KW - Phase difference
KW - Spatial correlation
KW - Structural vibration
KW - Vibration suppression
UR - http://www.scopus.com/inward/record.url?scp=85110256182&partnerID=8YFLogxK
U2 - 10.1016/j.ast.2021.106928
DO - 10.1016/j.ast.2021.106928
M3 - Article
AN - SCOPUS:85110256182
SN - 1270-9638
VL - 117
JO - Aerospace Science and Technology
JF - Aerospace Science and Technology
M1 - 106928
ER -
