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Title:
METHOD FOR DETERMINING RESPONSE MEASUREMENT POINT IN EXPERIMENTAL MODAL ANALYSIS
Document Type and Number:
Japanese Patent JP2011122904
Kind Code:
A
Abstract:

To provide a method for quantitatively determining response measurement points, in an experimental modal analysis for measuring the oscillation characteristics of a structure.

The method for quantitatively determining response measurement points in experimental modal analysis includes: an eigenvalue analysis process 210 for determining a mode shape within a prescribed frequency range through an eigenvalue analysis 212 to a numerical analysis model of the structure; a modal separation index analysis process 220, a method for determining response measuring points of experimental modal analysis for determining an autocorrelation coefficient between modes and determining response measuring points, for analyzing modal separation indices, indicating the effects on the autocorrelation coefficient for every node point; and a response measurement point determination process 230 for determining response measuring points, on the basis of the modal separation indices computed in the modal separation index analysis process.


Inventors:
Nakakoshi, Hiroaki
Yamakawa, Koshiro
Sawada, Satoshi
Application Number:
JP2009000280046
Publication Date:
June 23, 2011
Filing Date:
December 10, 2009
Export Citation:
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Assignee:
TORAY IND INC
International Classes:
G01M7/02