Author
Bijaya Jaishi
Other affiliations: Central South University
Bio: Bijaya Jaishi is an academic researcher from Fuzhou University. The author has contributed to research in topics: Modal analysis & System identification. The author has an hindex of 4, co-authored 5 publications receiving 562 citations. Previous affiliations of Bijaya Jaishi include Central South University.
Papers
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TL;DR: In this paper, a sensitivity-based finite element (FE) model updating is carried out for damage detection in a reinforced concrete beam, which is damaged in the laboratory, and the proposed procedure of FE updating using the modal flexibility residual is promising for the detection of damaged elements.
302 citations
TL;DR: In this article, a multiobjective optimisation technique is used to extremise two objective functions simultaneously which overcomes the difficulty of weighing the individual objective function of more objectives in conventional finite element updating procedure.
178 citations
TL;DR: In this article, the authors used finite element models to evaluate the seismic properties of 10 typical multi-tiered masonry temples in Nepal and found that most of the failure modes are associated with tensile and compressive stresses.
95 citations
TL;DR: In this article, an analytical and experimental dynamic analysis of a concrete-filled steel tubular (CFST) half-through arch bridge, with a span of 90m, located at the center of Xining City, Qinghai Province, China, is presented.
58 citations
TL;DR: In this article, the authors proposed two possible ways for mode shape expansion for future use, the first method minimizes the modal flexibility error between the experimental and analytical mode shapes corresponding to the measured degrees of freedom (DOFs) to determine the multiplication matrix.
Abstract: Proposed herein are two possible ways for mode shape expansion for future use. The first method minimizes the modal flexibility error between the experimental and analytical mode shapes corresponding to the measured degrees of freedom (DOFs) to determine the multiplication matrix. In the second method, Normalized Modal Difference (NMD) is used to calculate the multiplication matrix using the analytical DOFs corresponding to the measured DOFs. This matrix is then used to expand the measured mode shape to unmeasured DOFs. A simulated simply supported beam is used to demonstrate the performance of the methods. These methods are then compared with two most promising existing methods, namely the Kidder dynamic expansion and the modal expansion methods. It is observed that the performance of the modal flexibility method is comparable with existing methods. NMD also have the potential to expand the mode shapes though it is seen to be more sensitive to the distribution of error between finite element method and actual test data.
1 citations
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TL;DR: In this paper, a non-probabilistic fuzzy approach and a probabilistic Bayesian approach for model updating for non-destructive damage assessment is presented. But the model updating problem is an inverse problem prone to ill-posedness and ill-conditioning.
338 citations
TL;DR: In this article, a response surface-based finite element (FE) model updating procedure for civil engineering structures in structural dynamics is presented, where the key issues to implement such a model updating are discussed such as sampling with design of experiments, selecting the significant updating parameters and constructing a quadratic polynomial response surface.
270 citations
TL;DR: In this article, a multiobjective optimisation technique is used to extremise two objective functions simultaneously which overcomes the difficulty of weighing the individual objective function of more objectives in conventional finite element updating procedure.
178 citations
TL;DR: In this paper, the calibration of the numerical model of a bowstring-arch railway bridge based on modal parameters was performed using a genetic algorithm that allowed obtaining the optimal values of fifteen parameters.
166 citations
TL;DR: In this paper, a multistage scheme for damage detection for large structures based on experimental modal data and on finite element (FE) model updating methods applied on simple FE models is proposed.
165 citations