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A Finite Element Model Updating Method Based on Global Optimization [PDF]
Mechanical Systems and Signal Processing, 2021 62 pages, 16 ...
Cristina Padovani +2 more
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Updating Rotor-Bearing Finite Element Models
Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, 1997Abstract In this paper, the possibility of updating the finite element model of a rotor-bearing system by estimating the bearing stiffness and damping coefficients from a few measured Frequency Response Functions using a Genetic Algorithm is investigated. The issues of identifiability and parameters estimation errors, computational costs
C. MARES, SURACE, Cecilia
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A Specialised Element for Finite Element Model Updating of Moveable Joints
Multibody System Dynamics, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Morais, P. G. +2 more
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Load Updating for Finite Element Models
AIAA Journal, 2003A method for reducing the differences between experimental testing or real-world events and their finite element counterparts is presented. In this method system identification or finite element model updating are not performed; instead, the loads on the finite element model that would create equivaient displacements or strains are identified by ...
Jeffrey M. K. Chock, Rakesh K. Kapania
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On the use of transmissibility measurements for finite element model updating
Journal of Sound and Vibration, 2007Conventional finite element updating techniques make use of measured frequency response functions and modal parameter estimates to update the FE model parameters. This paper presents a new technique to update the FE model from output-only transmissibility measurements assuming the location of the excitation force is known.
Steenackers, Gunther +2 more
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Finite Element Model Reduction and Model Updating of structures for Control
IFAC Proceedings Volumes, 2014Estimation and control of unmeasurable performance variables in complex large-scale systems is an important issue in systems and control. The preferred solution to this problem is to have a relatively low-order and accurate standard plant model which can be used for control purposes. For this purpose, a two-step procedure is proposed. The first step is
Dorosti, M. +4 more
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Finite element model updating with damping identification
Journal of Sound and Vibration, 2009Abstract Most of finite element model updating techniques do not employ damping matrices and hence, cannot be used for accurate prediction of complex frequency response functions (FRFs). In this paper, damped finite element model updating procedure is proposed and tested with the objective that the damped finite element updated model is able to ...
Vikas Arora, S.P. Singh, T.K. Kundra
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Load Updating for Nonlinear Finite Element Models
45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, 2004A measurement-based load updating method for finite element models subjected to static loads was studied using a four-noded curved beam element for large displacements/rotations and a gradient-based variable metric optimizer. Finite element analysis was used to numerically calculate the geometrically linear and nonlinear responses and their ...
Jing Li, Rakesh K. Kapania
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Finite Element Model Updating Accounting for Modeling Uncertainty
2019A novel approach to deal with modeling uncertainty when updating mechanics-based finite element (FE) models is presented. In this method, a dual adaptive filtering approach is adopted, where the Unscented Kalman filter (UKF) is used to estimate the unknown parameters of the nonlinear FE model and a linear Kalman filter (KF) is employed to estimate the ...
Rodrigo Astroza +2 more
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