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Identification of Modal Parameters and Spatial Matrix in Frequency Domain-Application to 3-Dimensional Structure
Technical Paper
988184
Sector:
Event:
JSAE Spring Conference
Language:
Japanese
Abstract
An approach is presented for the identification of spatial matrix and physical model with modal parameters in the frequency domain. This is applied to 1-dimensional model, mainly, and some approach to 3-dimensional model is presented. Modal parameters are transformed to physical model with constraints of modal vector orthogonality and characteristic equation. Adding the connecting conditions or unconnected conditions of measuring points, physical model is determined by modal parameters whose number is smaller than that of dimension of spatial matrix.