Journal ArticleDOI
Identification of Running Load and Beam System
Masaru Hoshiya,Osamu Maruyama +1 more
Reads0
Chats0
TLDR
In this article, the EK-WGI method was used to identify the dynamic parameters of a running load and beam system using a weighted global iteration procedure incorporated with the extended Kalman filter.Abstract:
Identification problems on dynamic parameters of a running load and beam system were investigated, using the EK-WGI method, which is a weighted global iteration procedure incorporated with the extended Kalman filter. By suitably formulating a set of state vector equations and observation equations for the system on which this method was applied, dynamic parameters of both the running load and the beam were identified with high accuracy, where numerically simulated data were used as observation waves so that accuracy and convergency of estimated parameters might be examined.read more
Citations
More filters
Journal ArticleDOI
Estimation of structural parameters in time domain: A substructure approach
TL;DR: In this paper, a substructure approach is used to estimate the stiffness and damping coefficients of structures from measurement of dynamic responses, and the structures are decomposed into smaller subsystems for which state and observation equations are formulated and solved by the method of extended Kalman filter with a weighted global iteration algorithm.
Journal ArticleDOI
Element Level System Identification with Unknown Input with Rayleigh Damping
Xiaolin Ling,Achintya Haldar +1 more
TL;DR: In this paper, a finite element-based time-domain linear system identification technique is proposed for nondestructive damage evaluation of structures, which can identify a structure without using any input excitation information and can consider both viscous and Rayleigh-type proportional damping in the dynamic models.
Journal ArticleDOI
Recent developments in inverse problems of vehicle–bridge interaction dynamics
Xinqun Zhu,Siu-Seong Law +1 more
TL;DR: In this paper, the authors present an overview on inverse problems in vehicle-bridge interaction dynamics, which can be categorized into those based on the analytical model and those formulated with a finite element model with a focus on the solution technique.
Journal ArticleDOI
Damage Detection of Buildings: Numerical and Experimental Studies
TL;DR: In this article, an improved condensation method was proposed to identify structural damage of multistory frame buildings in terms of the change in story stiffness, and the identification was executed recursively on a remedial model, finally yielding integrity indices for all stories.
Journal ArticleDOI
Health Assessment at Local Level with Unknown Input Excitation
TL;DR: In this paper, a finite-element-based procedure is proposed to identify defects in existing structures and evaluate their extent at the local element level for the purpose of health assessment, where input excitation is not required to identify a structure.
References
More filters
Book
Stochastic Processes and Filtering Theory
TL;DR: In this paper, a unified treatment of linear and nonlinear filtering theory for engineers is presented, with sufficient emphasis on applications to enable the reader to use the theory for engineering problems.
Journal ArticleDOI
New Results in Linear Filtering and Prediction Theory
R. E. Kalman,R. S. Bucy +1 more
TL;DR: The Duality Principle relating stochastic estimation and deterministic control problems plays an important role in the proof of theoretical results and properties of the variance equation are of great interest in the theory of adaptive systems.
Journal ArticleDOI
Structural Identification by Extended Kalman Filter
Masaru Hoshiya,Etsuro Saito +1 more
TL;DR: In this article, a weighted global iteration procedure with an objective function is proposed for stable estimation, being incorporated into the extended Kalman filter algorithm, which is applied to system identification problems of seismic structural systems.
Journal ArticleDOI
Identification of Nonlinear Structural Dynamic Systems
TL;DR: In this article, two methods of system identification of n degrees-of-freedom structural dynamic systems are studied and applied to identification of the hydrodynamic coefficient matrices associated with nonlinear drag and linear inertia forces appearing in the equations of motion of offshore structures subjected to wave forces.