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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.
Raoult Ida, Delattre Benoit
doaj   +2 more sources

Academic stress and mental fatigue predict subjective but not objective internal load in adolescent soccer players—a prospective cohort study [PDF]

open access: yesFrontiers in Psychology
IntroductionAdolescent soccer players aspiring to reach the elite level are usually involved in a dual career. Moreover, they experience rapid physical and psychological development with unique social environments.
Rick Nijland   +7 more
doaj   +2 more sources

An Optimization of Airline Scheduling Systems Based on a New Airline Pilots’ Fatigue Assessment Algorithm [PDF]

open access: yesE3S Web of Conferences, 2023
Flight safety reports from different sources indicate that the proportion of accidents caused by flight fatigue accounts for 6-11% of all types of flight accidents.
Yang Sophie Xin   +3 more
doaj   +1 more source

Study on Mitigation of Wake Interference by Combined Control of Yaw Misalignment and Pitch

open access: yesJournal of Marine Science and Engineering, 2023
Yaw misalignment can make a wake steer, which is an effective method to increase the power of wind farms but it also increases the fatigue load of the turbines.
Liye Zhao   +6 more
doaj   +1 more source

The Load Spectrum Compilation of Engine Vibration Fatigue Based on Frequency Rain-flow Counting Method

open access: yesHangkong gongcheng jinzhan, 2021
The traditional rain-flow counting method is suitable for conventional fatigue load calculation, and cannot retain the frequency information of vibration fatigue. Frequency is very important for vibration fatigue.
LI Binchao, TANG Jing, YIN Zhiping
doaj   +1 more source

A 2.5MW Wind Turbine TL-EMPC Yaw Strategy Based on Ideal Wind Measurement By LiDAR

open access: yesIEEE Access, 2021
This paper analyzes the yaw data of the 2.5MW wind turbine of XEMC Windpower Company, and the real wind information collected by the wind farm, and proposes a two-level economic model predictive control (TL-EMPC) yaw strategy based on ideal wind ...
Han Zhao   +4 more
doaj   +1 more source

Active Disturbance Rejection Control for Wind Turbine Fatigue Load

open access: yesEnergies, 2022
With the participation of wind power in grid frequency modulation, the fatigue load of the wind turbine increases accordingly. A new control method that considers both fatigue load and output power of wind turbine (WT) is proposed in this paper. A linear
Xingkang Jin   +3 more
doaj   +1 more source

Numerical analysis of fatigue behaviors for tungsten armor of ITER divertor

open access: yesNuclear Materials and Energy, 2020
Thermal responses and fatigue behaviors of the tungsten armor of monoblock divertor under steady-state and transient high heat flux (HHF) loads as well as the coupling of the two were simulated and analyzed by the finite element method. It was found that,
Shuming Wang   +3 more
doaj   +1 more source

Fatigue Load Minimization for a Position-Controlled Floating Offshore Wind Turbine

open access: yesJournal of Marine Science and Engineering, 2023
Floating offshore wind farm control via real-time turbine repositioning has a potential in significantly enhancing the wind farm efficiency. Although the wind farm power capture increase by moving platforms with aerodynamic force has been verified in a ...
Brendan Saunders, Ryozo Nagamune
doaj   +1 more source

Active Power Dispatch for Supporting Grid Frequency Regulation in Wind Farms Considering Fatigue Load

open access: yesEnergies, 2019
This paper proposes an active power control method for supporting grid frequency regulation in wind farms (WF) considering improved fatigue load sensitivity of wind turbines (WT).
Yingming Liu   +4 more
doaj   +1 more source

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