Results 51 to 60 of about 4,690 (115)

Research on Dynamic Characteristics of Monopile Offshore Wind Turbine Tower Under Different Wind Speed Conditions [PDF]

open access: yes
Based on the ANSYS finite element software, the NREL 5 MW monopile offshore wind turbine tower system was modeled in 3D. The influence of different wind speeds on the dynamic characteristics of the tower structure was simulated and analyzed under the ...
CHEN Shangnian   +4 more
core   +1 more source

Research on the Influence of Pile Shoe Insertion and Removal on the Neighboring Three-Cylinder Jacket Foundation in Clay [PDF]

open access: yes
[Introduction] The construction process of pile insertion and removal for installing offshore wind turbines on mobile platforms is risky, which can easily affect the working performance of adjacent infrastructure, and even lead to its instability and ...
Di HAO   +3 more
core   +1 more source

The Relationship between the Upward Trend of Wind Power Capacity and the Downward Trend of Wind Power Cost--from the Angle of Learning Curve and Cointegration Analysis [PDF]

open access: yes, 2013
本文首先针对风电产业和风电补贴的相关研究文献进行综述,发现国内学者以在明确我国风电产业发展阶段的前提下,探讨风电成本下降趋势和相对应如何设计风电补贴这方面进行系统、深层地研究很少,尤其在中国风电成本数据难以得到的情况下,在国内的研究比较少。为此,本文本着理论与实际相结合的视角,从学习曲线角度模拟我国风电成本与我国风电装机容量出我国风电发展的学习曲线,并结合国家发改委2013年1月1日发布的《能源发展“十二五”规划》中对于我国风电装机在2015、2020和2025年中规划目标的设定,预测我国在11 ...
温佳嘉
core  

Research on Auxiliary Power System Scheme for Offshore Converter Station [PDF]

open access: yes
[Introduction] Aiming at the characteristics of offshore converter station, this paper proposes the design scheme for auxiliary power system of offshore converter station.
Sheng LIU, Zeyong LIANG, Zikai LU
core   +1 more source

Simulation and analysis method for dynamic fatigue reliability of shovel stick for mining electric shovel [PDF]

open access: yes
In order to reduce the stick fracture caused by random load during the operation of the electric shovel in open-pit mines, a simulation and analysis method of the dynamic reliability of the stick of the electric shovel in the mining was proposed.
Chong CHEN   +3 more
core   +1 more source

Prospects for Future Energy Technologies [PDF]

open access: yes
ObjectivesDeveloping future energy is both a current focus of international competition and an essential pathway for China to build a new-type energy system and advance Chinese-style modernization with high-quality development.
CHEN Lingte, LONG Xiao, ZHANG Jinbin
core   +1 more source

波流作用下海上风机大直径加翼单桩基础局部冲刷试验研究

open access: yes, 2023
随着海上风机的大型化和风电场所在海域水深的增加,海上风机基础需要承受更大的水平荷载和弯矩荷载。加翼单桩能有效提升风机基础承载能力,但侧翼结构对桩基周围局部冲刷的影响目前尚不明确。在波流水槽中开展了大直径加翼单桩动床冲刷模型试验,研究纯流和波流共同作用下加翼单桩的冲刷特性。试验结果表明:加翼单桩周围局部冲刷特性受到来流强度、方向和类型的显著影响;当水流强度较小时,加翼单桩相较于传统的单桩基础具有较好的冲刷防护效果,防护效率最高可达20.7%;当水流强度较大或波流叠加情况时,加翼单桩的防护效应可能消失 ...
李彪, 李涛, 漆文刚, 王顺意
core  

Essential mechanics issues of offshore wind power systems

open access: yes, 2013
作为一种新型清洁能源,海上风力发电受到人们的广泛关注,近十年发展迅猛.海上风电结构既不同于陆上风电结构,也区别于传统的海洋平台,既要考虑风对风机、塔架的作用,也要考虑波、浪、流、冰对水下支撑结构和地基的作用,还要考虑高倾覆力矩作用下地基的变形和承载力.然而,与之相关的水动力学、土力学、结构动力学及流-固-土耦合力学等的现有理论,还远不能满足工程设计和建设的需求,亟待发展.本文在阐述海上风电工程发展现状、结构形式与特征的基础上,重点阐述有关海上风电结构(包括固定式和浮式)的耦合水动力载荷与响应 ...
周济福, 林毅峰
core   +1 more source

海上风机高桩承台结构波浪冲击载荷实验研究

open access: yes, 2020
针对海上风机固定式支撑结构,从实际工程需求出发,利用实验室实验的方法,研究非线性波浪下海上风机高桩承台结构所受波浪力的规律。通过对高桩承台整体结构和无承台的群桩在不同水深下的14种实验工况的分析 ...
周济福, 王旭, 魏明珠
core  

[Research progress in the field of drug-induced liver injury in 2025]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi
Zhi Y, Dong YN, Lei XH, Mao YM.
europepmc   +1 more source

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