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Structural Model Updating Using Adaptive Multi-Response Gaussian Process Meta-modeling
[article]
2020
arXiv
pre-print
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Finite element model updating utilizing frequency response functions as inputs is an important procedure in structural analysis, design and control. ...
In particular, a multi-response Gaussian process (MRGP) meta-modeling approach is formulated that can accurately construct the error response surface, i.e., the discrepancies between the frequency response ...
responses, dynamic responses are generally more sensitive to small changes of structural parameters and uncertainties, and thus commonly used for calibrating/updating investigations. ...
arXiv:2004.11698v1
fatcat:fxzydwvahjculbxbwj4pzm5p5y
Effect of measurement noise and excitation on Generalized Response Surface Model Updating
2014
Engineering structures
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The results show the least sensitivity to measurement noise level, selected time window for model updating, and location of the true model parameters in RS regression domain, when vibration frequency of ...
Subsequently, the optimization problem of model updating is solved iteratively in time which results in histograms of the updating parameters. ...
Generalized Response Surface Model Updating (GRSMU) In RS-based FE model updating, RS models replace the full FE model in a pre-selected domain of unknown model parameters, here called RS domain. ...
doi:10.1016/j.engstruct.2014.05.033
fatcat:lv3y3ahoxfhe3gc3omud34luza
Parameter identification of framed structures using an improved finite element model-updating method—Part I: formulation and verification
2007
Earthquake engineering & structural dynamics (Print)
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its frequency response function as input data. ...
The relative constraints are automatically constructed using the correlation coefficients between the sensitivity vectors of updating parameters. ...
The use of the more general form of the proposed model updating technique (BVLSrc) is deferred to the companion paper [11] in which a larger set of updating parameters are included, and the model updating ...
doi:10.1002/eqe.646
fatcat:w6de3zxq4raftgmj6qoqzxsnai
The sensitivity method in finite element model updating: A tutorial
2011
Mechanical systems and signal processing
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The sensitivity method is probably the most successful of the many approaches to the problem of updating finite element models of engineering structures based on vibration test data. ...
A basic introduction to the most important procedures of computational model updating is provided, including tutorial examples to reinforce the reader's understanding and a large scale model updating example ...
[32] and QinetiQ Ltd. for the finite element model and test results from the Lynx helicopter. ...
doi:10.1016/j.ymssp.2010.10.012
fatcat:m2bmbddlmrg5fdwq772jgahl2e
A review on model updating in structural dynamics
2015
IOP Conference Series: Materials Science and Engineering
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The review is structured by presenting an overview of general concept of finite element model updating in structural dynamics and the capabilities of finite element method as a tool in model updating. ...
This lead to issue of parameterization and regularization which the limitation and uncertainty in choosing the updating parameter is shown able to be overcome. ...
Response sensitivities related to mass changes and stiffness parameters are indirectly determined using the decomposed form of frequency response function data. ...
doi:10.1088/1757-899x/100/1/012015
fatcat:jw2d2zpl2fdkng3frk5jd6kpsm
Dynamic Model Updating for Bridge Structures Using the Kriging Model and PSO Algorithm Ensemble with Higher Vibration Modes
2018
Sensors
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updated using the PSO algorithm. ...
This study applied the kriging model and particle swarm optimization (PSO) algorithm for the dynamic model updating of bridge structures using the higher vibration modes under large-amplitude initial conditions ...
measured responses by iteratively updating structural parameters that are sensitive to these responses. ...
doi:10.3390/s18061879
pmid:29890645
pmcid:PMC6022103
fatcat:rf3jeixqejfvjggejfjqgejxfi
Sensitivity Analysis of the Influence of Structural Parameters on Dynamic Behaviour of Highly Redundant Cable-Stayed Bridges
2013
Advances in Civil Engineering
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The new aspects regarding effective material and structural parameters and model tuning procedure presented in this paper will be useful for analyzing and model updating of cable-stayed bridges. ...
The updating parameters are selected through the sensitivity analysis which helps to better understand the structural behavior of the bridge. ...
Model Updating Results
Sensitivity Analysis of the Parameters. ...
doi:10.1155/2013/426932
fatcat:jzkwqlar5bfrhjkpxdjke33soa
Structural Health Monitoring Based on Combined Structural Global and Local Frequencies
2014
Mathematical Problems in Engineering
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is sensitive to local parameters. ...
Then the parameters of the structure can be optimized accurately using the combined structural global frequencies and structural local frequencies. ...
The damage extent of the 12th member is optimized using the updated FEM model. ...
doi:10.1155/2014/405784
fatcat:cy5dlxhpfrg5dn4yjvevkfmqxe
Dynamic models of golf clubs
1998
Sports Engineering
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The¯exibility properties of the shaft were modelled using the generic parameter approach. ...
This paper aims to improve a ®nite element model of a golf club by using measured experimental natural frequencies and mode shapes. ...
Updating the model of the wood Only the measured natural frequencies were used to update the golf club model. ...
doi:10.1046/j.1460-2687.1998.00001.x
fatcat:on3zgob72vam5nj4hq3sugxll4
Selection of optimal artificial boundary condition (ABC) frequencies for structural damage identification
2016
Journal of Sound and Vibration
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Based on the 14 expressions, the contributions of the underlying mode shapes in the ABC frequencies can be 15 calculated and used to select more sensitive ABC frequencies. ...
The sensitivity expressions for one-pin and two-pin ABC 12 frequencies, which are the natural frequencies from structures with one and two additional 13 constraints to its original boundary condition, ...
The most 33 commonly used response data for FE model updating are the dynamic modal data, such as 34 natural frequencies, mode shapes, and to a lesser extent damping. ...
doi:10.1016/j.jsv.2016.03.036
fatcat:nujdrkyahnf3vlrxzuazhaog7e
Quasi-linear sensitivity-based structural model updating using experimental transfer functions
2012
Structural Health Monitoring
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The method uses transfer functions for finite element model updating via a quasi-linear sensitivity equation of the structural response. ...
Excitation frequencies are selected in the most sensitive ranges of transfer functions for robust updating of the structural parameters. ...
At the frequency points desired for model updating, the response should be sensitive to changes in structural parameters (observability). ...
doi:10.1177/1475921712451952
fatcat:o7pw5w7vyvdpdl4stxd56lxami
Sensitivity-based finite element model updating with natural frequencies and zero frequencies for damped beam structures
2014
International Journal of Naval Architecture and Ocean Engineering
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In order to accomplish the goal of this study, first, a sensitivitybased FE model updating method using the natural frequencies and the zero frequencies is introduced. ...
The proposed FE model updating method is verified using a real cantilever beam attached damping material on one side. ...
Sensitivity-based FE model updating with natural frequencies and zero frequencies The sensitivity method, among the many approaches based on vibration test data, is probably the most widely used technique ...
doi:10.2478/ijnaoe-2013-0221
fatcat:rybd4pkjabfe7op3yfxinjxzfe
FREQUENCY–DOMAIN CRITERIA FOR CORRELATING AND UPDATING DYNAMIC FINITE ELEMENT MODELS
2001
Mechanical systems and signal processing
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and updated frequency response functions. ...
The updating of the second most detailed model, using simulated response functions from the most detailed model, exhibited quick convergence properties and yielded a very good match between the target ...
(iii) An updating algorithm has been devised using the sensitivity of the global correlation functions with respect to the selected design parameters. ...
doi:10.1006/mssp.2000.1357
fatcat:j2hxrfqkdjdcplrvzsswnymd4m
Space-mapping optimization of microwave circuits exploiting surrogate models
2000
IEEE transactions on microwave theory and techniques
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This model is a convex combination of a mapped coarse model and a linearized fine model. It exploits, in a novel way, a linear frequency-sensitive mapping. ...
A high-temperature superconducting filter is also designed using decoupled frequency and SMs. ...
We show that this expression is a generalized form for frequency-sensitive mappings of the lemma utilized in [4] . It can be used to approximate the fine-model derivatives in the region of interest. ...
doi:10.1109/22.898978
fatcat:hrpnquigjvf6jhr63tfifhe5n4
Finite element modelling and updating of a lively footbridge: The complete process
2007
Journal of Sound and Vibration
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The updating process has four key phases: initial FE modelling, modal testing, manual model tuning and automatic updating (conducted using specialist software). ...
The process of updating identifies the drawbacks in the FE modelling and the updated FE model could be used to produce more reliable results in further dynamic analysis. ...
Calculate the sensitivity matrix S for the given state of parameters 0 P and responses 0 R . 3. Calculate matrix G using either Equation (6) or (7). 4. ...
doi:10.1016/j.jsv.2006.09.024
fatcat:kbigam332jbwfoc3tngmy3gdn4
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