NASA NTRS · 19830048594
Direct structural parameter identification by modal test results
Abstract
A 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.
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Chen, J.-C., Kuo, C.-P., Garba, J. A.. 1983-01-01. Direct structural parameter identification by modal test results. https://ntrs.nasa.gov/citations/19830048594
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