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Generic element matrices suitable for finite element model updating
Mechanical Systems and Signal Processing, 1995Abstract Updating procedures are concerned with the construction of mass, stiffness and (possibly) damping matrices, near to some base matrices, which yield some response data close to some experimental values. One of the fundamental questions in updating relates to the criteria for allowable mass and stiffness matrices.
G.M.L. Gladwell, H. Ahmadian
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Stochastic Finite Element Model Updating by Bootstrapping
2016This paper presents a new stochastic finite element model calibration framework for estimation of the uncertainty in model parameters, which combines the principles of bootstrapping with the technique of FE model calibration with damping equalization. The bootstrapping allows to quantify the uncertainty bounds on the model parameters by constructing a ...
Vahid Yaghoubi +3 more
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Correlation and Updating of an Unmanned Aerial Vehicle Finite Element Model
56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2015In this paper the numerical models of the structural components of an UAV are separately correlated with their experimental counterparts and then updated, in order to improve the correlation. A sensitivity-based updating method is considered and its capabilities to identify changes of the design parameters that are physically acceptable investigated ...
A. S. Mezzapesa +5 more
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ON A STATISTICAL OPTIMIZATION METHOD USED IN FINITE ELEMENT MODEL UPDATING
Journal of Sound and Vibration, 2000Bayesian estimator is a commonly used statistical optimization technique for finite element model updating. This paper presents a modified Bayesian estimator and discusses its unbiasedness, efficiency, learning ability and robustness. The main differences from other estimators, for instance, the least-squares method, are shown.
Hua, Hongxing +2 more
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Finite Element Model Updating of a Steel Jacket Scale Model
Applied Mechanics and Materials, 2012In this paper, the finite element model of a steel jacket scale model is updated using modal parameters identified by modal test. Updating parameters are selected based on sensitivity analysis by solving modal energies. And then, a two-steps updating process is carried out using different parameters and the Cross-Model Cross-Mode (CMCM) model updating ...
Zhi Gang Li +3 more
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Model updating of finite element model using optimisation routine
Aircraft Engineering and Aerospace Technology, 2016Purpose The present paper aims to describe the model updating of a small aircraft dynamic finite element model (FEM) to improve its agreement with ground vibration test (GVT) data. Design/methodology/approach An automatic updating method using an optimization procedure is carried out.
Bimo Prananta +3 more
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Finite Element Model Updating Using the Local Correspondence Principle
2018In this, paper an overview of a Finite Element (FE) model updating technique based on the Local Correspondence (LC) principle is presented. The main idea behind the LC technique is to update the FE model by replacing the mode shape vectors and natural frequencies with their corresponding experimental counterparts obtained from an output-only modal ...
Amador, Sandro +3 more
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Sequential surrogate modeling for efficient finite element model updating
Computers & Structures, 2016This study propose a sequential surrogate modeling for FE model updating.Identical input parameters can produce simple and highly complex response-surfaces.Accordingly, the use of the identical samples for surrogate modeling is not efficient.The proposed method adds samples automatically based on the Kriging model.The proposed method can be customized ...
Seung-Seop Jin, Hyung-Jo Jung
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Link relation updating of finite element model
International Journal of Applied Electromagnetics and Mechanics“ Tie” constraint is commonly used to establish the link relation of structural finite element model (FEM) in engineering. In this paper, the constrained area is taken as the updated object, and modal test data is used to update the structural FEM.
Jian Liu +3 more
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On Load Updating for Finite Element Models
43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2002Jeffrey Chock, Rakesh Kapania
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