Searched for: subject%3A%22force%255C+identification%22
(1 - 8 of 8)
document
Petersen, W. (author), Øiseth, O. (author), Lourens, E. (author)
Wind loading is an essential aspect in the design and assessment of long-span bridges, but it is often not well-known and cannot be measured directly. Most structural health monitoring systems can easily measure structural responses at discrete locations using accelerometers. This data can be combined with reduced-order modal models in Kalman...
journal article 2022
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Petersen, W. (author), Øiseth, O. (author), Lourens, E. (author)
The traditional wind load assessment for long-span bridges relies on assumed models for the wind field and aerodynamic coefficients from wind tunnel tests, which usually introduce some uncertainties. Recent studies have shown that large deviations can exist between the predicted and observed wind-induced dynamic response of suspension bridges...
journal article 2020
document
Geelen, Thom (author)
In many engineering fields it is beneficial to obtain information about the force acting on a dynamical system. As measurement of this force is often difficult or impossible a technique that identifies this force in an alternative manner is desired. A wide variety of methods is available in literature. Obtaining this force in the frequency...
master thesis 2019
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Petersen, Oyvind W. (author), Øiseth, Ole (author), Nord, Torodd Skjerve (author), Lourens, E. (author)
The traditional wind load assessment for long-span bridges rely on assumed models for the wind field and aerodynamic coefficients from wind tunnel tests, which usually introduces some uncertainties. It is therefore desired to develop tools that can utilize full-scale vibration response data from existing bridges in order to study the wind...
conference paper 2019
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Petersen, Øyvind Wiig (author), Øiseth, Ole (author), Lourens, E. (author)
The dynamic behaviour of long-span bridges is governed by stochastic loads from typically ambient excitation sources. In real life, these loads cannot be measured directly at full scale. However, inverse methods can be utilised to identify these unknown forces using response measurements together with a numerical model of the relevant...
journal article 2019
document
Fallais, D.J.M. (author)
Identifying unknown forces and system parameters belongs to the field of force and system identification. A specific area of this field is concerned with performing this identification based on physical models and measurable response data. The physical model which is used for this so called model-based identification has to resemble the...
master thesis 2015
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Nord, T.S. (author), Lourens, E. (author), Oiseth, O. (author), Metrikine, A. (author)
The level-ice forces exerted on a scale model of a compliant bottom founded structure are identified from noncollocated strain and acceleration measurements by means of a joint input-state estimation algorithm. The identification is performed based on two different finite element models: one entirely based on the blueprints of the structure, and...
conference paper 2014
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Maes, K. (author), Lourens, E. (author), Van Nimmen, K. (author), Reynders, E. (author), Van den Broeck, P. (author), Guillaume, P. (author), De Roeck, G. (author), Lombaert, G. (author)
An existing joint input-state estimation algorithm is extended for applications in structural dynamics. The estimation of the input and the system states is performed in a minimum-variance unbiased way, based on a limited number of response measurements and a system model. An additional method is proposed to identify the noise statistics, which...
conference paper 2013
Searched for: subject%3A%22force%255C+identification%22
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