METHOD FOR DETERMINING RESPONSE MEASUREMENT POINT IN EXPERIMENTAL MODAL ANALYSIS

摘要

PROBLEM TO BE SOLVED: To provide a method for quantitatively determining response measurement points, in an experimental modal analysis for measuring the oscillation characteristics of a structure.;SOLUTION: 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.;COPYRIGHT: (C)2011,JPO&INPIT