Results 1 to 10 of about 207,801 (189)

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

Fatigue damage assessment of bogie frame based on an improved nonlinear cumulative damage model [PDF]

open access: yesScientific Reports
The structural damage of rail vehicle bogie frames is mostly caused by fatigue cumulative damage under the action of multi-level complex loads. Under complex loads, the sequence effect and coupling effect between loads have a significant impact on ...
Qian Xiao   +3 more
doaj   +2 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

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

Fatigue equivalent load approach for fatigue design [PDF]

open access: yesMATEC Web of Conferences, 2019
Industrial structures undergo complex loading often unsuitable for the design and validation phases of their development. Engineers seek simplified signals to replace them, yet equivalent in terms of fatigue. A general framework for the construction of fatigue equivalent loads is presented, intended to take into account some uncertainty on the ...
Raoult Ida, Delattre Benoit
openaire   +2 more sources

Effects of force load, muscle fatigue and extremely low frequency magnetic stimulation on EEG signals during side arm lateral raise task [PDF]

open access: yes, 2017
Objective: This study was to quantitatively investigate the effects of force load, muscle fatigue and extremely low frequency (ELF) magnetic stimulation on electroencephalography (EEG) signal features during side arm lateral raise task.
Biller S   +14 more
core   +2 more sources

A fabrication history based strain-fatigue model for prediction of crack initiation in a radial loading wheel [PDF]

open access: yes, 2017
A strain-based fatigue model concerning fabrication history is applied to predict the fatigue life of a commercial car wheel under radial loads. As the prior conditions, the strain fatigue testing is performed on standard specimen of DP590 and FB540 ...
Gu, H.R   +7 more
core   +1 more source

Obtaining the fatigue laws of bituminous mixtures from a strain sweep test: effect of temperature and aging [PDF]

open access: yes, 2017
Fatigue is associated with the deterioration caused by applying repeated loads, and is affected by temperature or aging. Generally, time sweep tests are used to simulate fatigue, in order to obtain the fatigue laws.
Botella Nieto, Ramón   +3 more
core   +2 more sources

Home - About - Disclaimer - Privacy