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Identification of Linear Time-Varying Dynamical Systems Using Hilbert Transform and Empirical Mode Decomposition Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper addresses the identification of linear time-varying multi-degrees-of-freedom systems. The identification approach is based on the Hilbert transform and the empirical mode decomposition ...
Moving Load and Prestress Identification Using Wavelet-Based Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel moving force and prestress identification method based on finite element and wavelet-based method for bridge-vehicle system is developed. A two-axle vehicle model and simple-supported beam ...
Structural Damage Detection from Incomplete and Noisy Modal Test Data
Publisher: American Society of Civil Engineers
Abstract: Existing research on structural damage detection usually requires information at every degree of freedom, and this contradicts the usual practice of having a small number of sensors employed over limited locations on the ...
Optimum Sensor Placement for StructuralDamage Detection
Publisher: American Society of Civil Engineers
Abstract: A method of optimizing sensor locations and detecting damage in a structure using the collected information is presented in this paper. Unlike most methods found in the literature, the sensor locations are prioritized ...
Improved Damage Quantification from Elemental Modal Strain Energy Change
Publisher: American Society of Civil Engineers
Abstract: An improved structural damage quantification algorithm is presented based on the elemental modal strain energy change before and after the occurrence of damage in a structure. The algorithm includes the analytical stiffness ...
Structural Damage Detection from Modal Strain Energy Change
Publisher: American Society of Civil Engineers
Abstract: A structural damage detection method based on modal strain energy (MSE) change before and after damage is presented in this paper. The localization of damage based on MSE of each structural element is briefly presented, ...
Model Updating of Semirigid Jointed Structure Using Generic Parameters
Publisher: American Society of Civil Engineers
Abstract: Semirigid connections are usually found in large-scale engineering structures, and the knowledge of the dynamic characteristics of these connections is important to the accurate definition of the dynamic characteristics ...
Closure to “Structural Damage Detection from Modal Strain Energy Change” by Z. Y. Shi, S. S. Law, and L. M. Zhang
Publisher: American Society of Civil Engineers
Damage Localization by Directly Using Incomplete Mode Shapes
Publisher: American Society of Civil Engineers
Abstract: A sensitivity- and statistical-based method to localize structural damage by direct use of incomplete mode shapes is presented. The method is an extension of the multiple damage location assurance criterion (MDLAC), developed ...