Direct structural parameter identification by modal test resultsA direct identification procedure is proposed to obtain the mass and stiffness matrices based on the test measured eigenvalues and eigenvectors. The method is based on the theory of matrix perturbation in which the correct mass and stiffness matrices are expanded in terms of analytical values plus a modification matrix. The simplicity of the procedure enables real time operation during the structural testing.
Document ID
19830048594
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chen, J.-C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kuo, C.-P. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Garba, J. A. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1983
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 83-0812
Meeting Information
Meeting: Structures, Structural Dynamics and Materials Conference