Large Modal Survey Testing Using the Ibrahim Time Domain Identification Technique

VIBRATION CONTROL IDENTIFICATION OF SEISMICALLY EXCITED m.d.o.f. STRUCTURE-PTMD SYSTEMS

“…Suppose that the responses at n di!erent stations are measured and m modal properties are to be identi"ed, we may use any m measurements for s instants (when n*m) or repeat the available measurements (when n(m) to construct the response matrix X using time shifting schemes [30] such that…”

Identification of Nonlinear Vibrating Structures: Part I—Formulation

“…While this approach has also been frequently applied in the field of structural dynamics Thomson, 1974, 1977;Ibrahim and Mikulcik, 1973, 1977Ibrahim and Pappa, 1982;Ibrahim, 1977Ibrahim, , 1978Ibrahim, , 1983Junkins, 1978;Beck and Jennings, 1980;Yao, 1985;Torkamani and Hart, 1975;Shinozuka et al, 1982;Rajaram and Junkins, 1985;Hac and Spanos, 1987), there is a paucity of studies that are concerned with the problems encountered by this approach when applied to realistic problems arising in the vibration field. Consequently, the present section of this paper is devoted to presenting an indepth, unified, and efficient approach for using least-squares…”

Operational Modal Analysis of a Rotating Cantilever Beam Using High-Speed Digital Image Correlation

“…Ones such method is to solve the eigenvalue problem for a different set of time instants and compare the complex eigenvectors from both solutions using the Mode Shape Correlation Constant (MSCC) [16], defined as,…”