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Modal identification of composite structures using Eigen realization method

Conference ·
OSTI ID:501717
 [1];  [2]
  1. South Dakota State Univ., Brookings, SD (United States)
  2. Purdue Univ., Indianapolis, IN (United States)

Experimental modal analysis has proved to be a useful tool to determine the vibration response of complex composite structures. An accurate method for extracting modal parameters of these type of structures are presented. The method used experimental impulse response of the system as input and provides natural frequencies and damping ratios of a dynamic system. The employed theories are Eigen Realization and Impulse Response methods. The adopted method is superior to other available methods in time and frequency domains. The presented method is proven to provide robustness with respect to measured noise.

OSTI ID:
501717
Report Number(s):
CONF-961239--
Country of Publication:
United States
Language:
English

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