Journal ArticleDOI
Updating model parameters from frequency domain data via reduced order models
Michael I. Friswell,J.E.T. Penny +1 more
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TLDR
In this paper, the frequency response functions have been used directly to update condensed analytical models and so avoid the sometimes difficult step of deriving the modal model, which is the system natural frequencies, damping coefficients and mode shapes.About:
This article is published in Mechanical Systems and Signal Processing.The article was published on 1990-09-01. It has received 46 citations till now. The article focuses on the topics: Frequency domain & Frequency response.read more
Citations
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Journal ArticleDOI
The sensitivity method in finite element model updating: A tutorial
TL;DR: 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 of a helicopter airframe.
Journal ArticleDOI
Uncertainties and dynamic problems of bolted joints and other fasteners
Raouf A. Ibrahim,Chris L. Pettit +1 more
TL;DR: In this article, a review article provides an overview of the problems pertaining to structural dynamics with bolted joints, including energy dissipation, dynamic properties of the joints, parameter uncertainties and relaxation, and active control of the joint preload.
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Model updating using neural networks
Mauro J. Atalla,Daniel J. Inman +1 more
TL;DR: Numerical simulations and experimental results show that the proposed method has good accuracy and generalization properties, and it is therefore, a suitable alternative for the solution of the model updating problem of this class of systems.
Journal ArticleDOI
Structural finite element model updating using transfer function data
TL;DR: In this paper, a new method is presented for the finite element model updating of structures at the element level utilizing Frequency Response Function data, which can be an alternative to conventional model updating methods even in the presence of mass modeling errors.
References
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Journal ArticleDOI
Simplified calculation of eigenvector derivatives
TL;DR: A simplified procedure is presented for the determination of the derivatives of eigenvectors of nth order algebraic eigensystems, applicable to symmetric or nonsymmetric systems, and requires knowledge of only one eigenvalue and its associated right and left eigenavectors.
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Methods and application of structural modelling from measured structural frequency response data
TL;DR: A critical examination is made of the use of mathematical modelling for the determination of mass and stiffness distribution and for the prediction of the response of coupled structures.
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Identification of structural vibration parameters by using a frequency domain filter
TL;DR: In this paper, a sequential, least squares, frequency domain filter is presented for the identification of structural vibration parameters from measured responses and known excitations, and the validity of the approach is demonstrated by using simulated data for two multi-degree of freedom systems.
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Candidate reduced order models for structural parameter estimation
TL;DR: In this article, the reduction of high order models generated by finite element analysis is considered and the effect of the reduction process on the modelled receptances is demonstrated, and the available order reduction algorithms and their properties are introduced.