Results 11 to 20 of about 509,594 (305)

SCADA Data-Based Working Condition Classification for Condition Assessment of Wind Turbine Main Transmission System

open access: yesEnergies, 2021
Due to the complex and variable conditions under which wind turbines operate, existing working condition classification methods are inadequate for condition assessment of the main transmission system.
Huanguo Chen   +4 more
doaj   +2 more sources

Dynamics Modeling and Analysis of Wind Turbine Transmission System with Gear Fault Condition

open access: yesJixie chuandong, 2016
Because of the output response of the wind turbine transmission system caused by the gear fault is not stable,the dynamic performance of the transmission system in fault state is studied. The transmission system dynamics models under normal condition and
Ye Zhou   +3 more
doaj   +2 more sources

Multi-condition and Multi-objective Modification Optimization Design of Spur Gear

open access: yesJixie chuandong, 2021
Considering that spur gears are used under multiple-condition, the modeling method of modified tooth surface for pinion and the multi-condition and multi-objective modification optimization methods of the spur gear transmission are researched.
Rui Shen, Siwei Yang
doaj   +2 more sources

Analysis of the Composite Transmission of Magnetorheological Fluids and Shape Memory Alloy

open access: yesJixie chuandong, 2015
The magnetorheological effect of magnetorheological fluid reduce under a high temperature condition,which causes so many problems like the uncontrollability of the variation of shearing stress,and even failure of the transmission device.Based on the ...
Chen Song   +3 more
doaj   +2 more sources

Active Vibration-Based Condition Monitoring of a Transmission Line

open access: yesActuators, 2021
In the power system, the transmission tower is located in a variety of terrains. Sometimes there will be displacement, inclination, settlement and other phenomena, which eventually lead to the collapse of the tower. In this paper, a method for monitoring
Liuhuo Wang   +5 more
doaj   +1 more source

Transmission conditions obtained by homogenisation [PDF]

open access: yesNonlinear Analysis, 2018
Given a bounded open set in $\mathbb{R}^n$, $n\ge 2$, and a sequence $(K_j)$ of compact sets converging to an $(n-1)$-dimensional manifold $M$, we study the asymptotic behaviour of the solutions to some minimum problems for integral functionals on $Ω\setminus K_j$, with Neumann boundary conditions on $\partial(Ω\setminus K_j)$.
Dal Maso, Gianni   +2 more
openaire   +4 more sources

Experimental and Numerical Study of an Electrical Thermal Storage Device for Space Heating

open access: yesEnergies, 2018
An electrical thermal storage (ETS) device for space heating is designed in this study. The proposed device is charged by the off-peak electricity and releases its thermal energy to warm the space all day long.
Guizhi Xu   +5 more
doaj   +1 more source

On the Influence of Curvature on Transmission Conditions

open access: yes, 2014
We are investigating in this short note if and how the curvature of the interfaces influences the choice of transmission conditions in optimized Schwarz methods. We use two approaches: micro-local analysis, and the study of a circular model problem. We find that both approaches lead to transmission conditions which depend on the curvature, and that the
Barucq, Hélène   +2 more
openaire   +4 more sources

CONTROL OF TECHNICAL CONDITION OF THE AUTOMATIC TRANSMISSION [PDF]

open access: yesVolga Region Farmland, 2019
The aim of the study was to develop an automatic gearbox troubleshooting algorithm based on performance tests, as existing algorithms do not allow to determine a problem in a car at the lowest cost.
A.S. Ivanov   +5 more
doaj   +1 more source

Increased transmission of mutations by low-condition females: evidence for condition-dependent DNA repair. [PDF]

open access: yesPLoS Biology, 2008
Evidence is mounting that mutation rates are sufficiently high for deleterious alleles to be a major evolutionary force affecting the evolution of sex, the maintenance of genetic variation, and many other evolutionary phenomena. Though point estimates of
Aneil F Agrawal, Alethea D Wang
doaj   +1 more source

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