Results 11 to 20 of about 59,467 (314)

Heliostat Fatigue Loads

open access: yesSolarPACES Conference Proceedings
An approach to estimate the wind load spectra for heliostats is proposed. It is based on the wind-induced fatigue cycle counts for buildings given by the Eurocode EN 1991 and considers heliostat specific impact factors.
Andreas Pfahl
doaj   +3 more sources

Multi-Objective Optimisation for Large-Scale Offshore Wind Farm Based on Decoupled Groups Operation

open access: yesEnergies, 2022
Operation optimization for large-scale offshore wind farms can cause the fatigue loads of single wind turbines to exceed their limits. This study aims to improve the economic profit of offshore wind farms by conducting multi-objective optimization via ...
Yanfang Chen   +2 more
doaj   +1 more source

Individual Pitch Control of Wind Turbines Based on SVM Load Estimation and LIDAR Measurement

open access: yesIEEE Access, 2021
With the development of wind turbines to the large scale with high rated powers, how to reduce fatigue loads is the key factor for modern wind turbine control. Aiming at reducing the wind turbine structural fatigue loads, an individual pitch control (IPC)
Xin Wang   +5 more
doaj   +1 more source

A new fatigue crack growth model considering underloads and overloads history together with stress ratio

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2022
The estimation of fatigue crack growth for a ship structure is a complicated subject, especially when loads vary. Several researchers studied fatigue crack growth under varying loads with simple block loads, and many models have been proposed.
Myung-Sup Lee, Myung-Hyun Kim
doaj   +1 more source

A probabilistic model for the high cycle fatigue behaviour of cast aluminium alloys subject to complex loads [PDF]

open access: yes, 2013
Lien vers la version éditeur: http://www.sciencedirect.com/science/article/pii/S0142112312002472This article is dedicated to the high cycle fatigue behaviour of cast hypo-eutectic Al–Si alloys and in particular the AlSi7Cu05Mg03 alloy.
PESSARD, Etienne   +3 more
core   +1 more source

Fatigue Measurements in an Existing Highway Concrete Bridge

open access: yesSensors, 2022
Knowing the actual fatigue effects helps to assess the structural safety of bridges more accurately. Especially when the actions change or increase, it is important to be able to determine this.
Harald Schuler, Martin Müller
doaj   +1 more source

Fatigue loading of tendon

open access: yesInternational Journal of Experimental Pathology, 2013
SummaryTendon injuries, often called tendinopathies, are debilitating and painful conditions, generally considered to develop as a result of tendon overuse. The aetiology of tendinopathy remains poorly understood, and whilst tendon biopsies have provided some information concerning tendon appearance in late‐stage disease, there is still little ...
Jennifer H, Shepherd, Hazel R C, Screen
openaire   +2 more sources

Modelling the role of non metallic inclusions on the anisotropic fatigue behaviour of forged steel [PDF]

open access: yes, 2011
Forged components are known to show high cyclic and monotonic mechanical properties. This is mainly due to a better compactness and a finer microstructure introduced by the forming process. However, this good mechanical behaviour is sometimes a source of
D. Bellett   +7 more
core   +1 more source

Assessment of an actuator disk‐based approach for the prediction of fatigue loads in a perspective of wind farm‐scale application

open access: yesWind Energy, 2022
This work aims at assessing the loads and the fatigue estimates computed using an advanced actuator disk (AD) method coupled to large eddy simulation, at a resolution appropriate for large wind farm calculations.
Maud Moens   +2 more
doaj   +1 more source

Correlations Between Wake Phenomena and Fatigue Loads Within Large Wind Farms: A Large-Eddy Simulation Study

open access: yesFrontiers in Energy Research, 2022
This work proposes a methodology aiming at simulating the whole wind farm behavior, from the wake phenomena to the wind turbine fatigue loads, in a both accurate and efficient way and for a large range of operating conditions.
Maud Moens , Philippe Chatelain
doaj   +1 more source

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