Details
Konferenz
| Konferenz | Wind Energy Science Conference 2019 |
|---|---|
| Kurztitel | WESC 2019 |
| Land/Gebiet | Irland |
| Ort | Cork |
| Zeitraum | 17 Juni 2019 → 20 Juni 2019 |
Abstract
damage. The model updating is achieved by means of numerical optimisation, which requires a large
number of finite element simulations to achieve convergence. The computational cost of this process can
be lowered by reducing complex finite element models to numerically more efficient representations.
In wind energy, slender shell structures like the tower structure and the wind turbine rotor blades are
reduced to beam models for structural mechanics computations. The usual way to obtain distributed beam
properties is to extract axial stiffness parameters as well as moments of inertia for several cross-sections
along the length of the considered structure. This can be achieved analytically or by two-dimensional finite
element calculations. In case of widely varying cross-sectional properties, the discretisation along the
longitudinal axis of the structure has to be very fine in order to accurately represent its global behaviour.
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2019. Wind Energy Science Conference 2019, Cork, Irland.
Publikation: Konferenzbeitrag › Vortragsfolien › Forschung
}
TY - CONF
T1 - An Inverse Model Reduction Method for Finite Element Model Updating in Structural Health Monitoring
AU - Hofmeister, Benedikt
AU - Bruns, Marlene Theresa
AU - Grießmann, Tanja
AU - Rolfes, Raimund
PY - 2019/9/24
Y1 - 2019/9/24
N2 - Model-based structural health monitoring using an updating scheme can detect, localise and quantifydamage. The model updating is achieved by means of numerical optimisation, which requires a largenumber of finite element simulations to achieve convergence. The computational cost of this process canbe lowered by reducing complex finite element models to numerically more efficient representations.In wind energy, slender shell structures like the tower structure and the wind turbine rotor blades arereduced to beam models for structural mechanics computations. The usual way to obtain distributed beamproperties is to extract axial stiffness parameters as well as moments of inertia for several cross-sectionsalong the length of the considered structure. This can be achieved analytically or by two-dimensional finiteelement calculations. In case of widely varying cross-sectional properties, the discretisation along thelongitudinal axis of the structure has to be very fine in order to accurately represent its global behaviour.
AB - Model-based structural health monitoring using an updating scheme can detect, localise and quantifydamage. The model updating is achieved by means of numerical optimisation, which requires a largenumber of finite element simulations to achieve convergence. The computational cost of this process canbe lowered by reducing complex finite element models to numerically more efficient representations.In wind energy, slender shell structures like the tower structure and the wind turbine rotor blades arereduced to beam models for structural mechanics computations. The usual way to obtain distributed beamproperties is to extract axial stiffness parameters as well as moments of inertia for several cross-sectionsalong the length of the considered structure. This can be achieved analytically or by two-dimensional finiteelement calculations. In case of widely varying cross-sectional properties, the discretisation along thelongitudinal axis of the structure has to be very fine in order to accurately represent its global behaviour.
U2 - 10.5281/zenodo.3459166
DO - 10.5281/zenodo.3459166
M3 - Slides to presentation
T2 - Wind Energy Science Conference 2019
Y2 - 17 June 2019 through 20 June 2019
ER -