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Miao Li, Hao Li and Yang Wen
A new type of spherical node was used to design a laboratory-scale prototype of a six-leg lattice of steel tubes and concrete for application as a wind turbine tower. Repeated load tests were performed on the prototype tower for several weeks to evaluate...
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Giacomo Vettoretto, Zongchen Li and Christian Affolter
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Pyounghwa Kim, Whi Seok Han, Jeong Hun Kim, Jeonghwa Lee, Young Jong Kang and Seungjun Kim
High-voltage transmission towers consist of structures that are designed to avoid the risk of electric shock and prevent the risk of collapse. Hence, for efficiency, they are generally designed as high-rise towers. The main tower posts are the primary st...
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Haoran Song and Yingna Li
Transmission lines have the characteristics of being tall tower structures with a large span distribution of transmission lines that are sensitive to external loads such as wind and ice, and belong to strong, nonlinear, complex, rigid-flexible coupling s...
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Qian Huang, Xiaoguang Wu, Yunfei Zhang and Min Ma
The practical calculation method of tower load in arch bridge cable lifting construction proposed in this paper, including its engineering application on the analysis of tower mechanical properties, has the characteristics of high calculation efficiency ...
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Peng Wu, Gang Chen, Ruoqiang Feng and Fujiangshan He
Local wind pressures on tiny rods of complex grid structures are difficult to obtain through wind tunnel tests due to their small sizes after scaling down, resulting in a lack of data support in wind load calculations for similar structures. However, loc...
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Ming Song, Wei Shi, Zhengru Ren and Li Zhou
In this paper, the interaction between level ice and wind turbine tower is simulated by the explicit nonlinear code LS-DYNA. The isotropic elasto-plastic material model is used for the level ice, in which ice crushing failure is considered. The effects o...
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Wei Lin, Gangbing Song and Shanghong Chen
A pounding tuned mass damper (PTMD) is introduced by making use of the energy dissipated during impact. In the proposed PTMD, a viscoelastic layer is attached to an impact limitation collar so that energy can be further consumed and transferred to heat e...
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Fan Zhu, Meng Zhang, Fuxuan Ma, Zhihua Li and Xianqiang Qu
Wind turbine towers experience complex dynamic loads during actual operation, and these loads are difficult to accurately predict in advance, which may lead to inaccurate structural fatigue and strength assessment during the structural design phase, ther...
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Yan Dong, Jian Zhang, Shaofeng Zhong and Yordan Garbatov
The study aims to develop a simplified strength assessment method for the preliminary structural design of a semi-submersible floating offshore wind turbine platform. The method includes load cases with extreme wave load effects and a load case dominated...
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Thomas Danel, Zoubeir Lafhaj, Anand Puppala, Sophie Lienard and Philippe Richard
This article proposes a methodology to measure the productivity of a construction site through the analysis of tower crane data. These data were obtained from a data logger that records a time series of spatial and load data from the lifting machine duri...
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Brendan Saunders and Ryozo Nagamune
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 r...
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Haoming Liu, Suxiang Yang, Wei Tian, Min Zhao, Xiaoling Yuan and Bofeng Xu
The operational environment of offshore wind turbines is much more complex than that of onshore wind turbines. Facing the persistent wind and wave forces, offshore wind turbines are prone to vibration problems, which are not conducive to their long-term ...
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Xuhui He, Zhiyu Wang, Chao Li, Ce Gao, Yongfeng Liu, Changpeng Li and Bin Liu
This paper presents an experimental study on the box girder of a low-tower cable-stayed railway bridge with a W-shaped section that consists of prestressed concrete diagonal braces. A 1:6 scale test model was designed and constructed for the experiment. ...
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Djilali Beida Maamar, Zenasni Ramdane
Pág. 142 - 151
The main purpose of the present investigation was to determine the damages generated by the low velocities with the help of the experimental method (Impact by a drop test) and the finite element method. The commercial transient finite element package LS-...
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Xuan Mei and Min Xiong
In order to investigate the effects of second-order hydrodynamic loads on a 15 MW floating offshore wind turbine (FOWT), this study employs a tool that integrates AQWA and OpenFAST to conduct fully coupled simulations of the FOWT subjected to wind and wa...
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Minseo Jang, Yunwoo Lee, Deokhee Won, Young-Jong Kang and Seungjun Kim
Owing to the structural characteristics of floating-type structures, they can be effectively applied to overcome the limitation of conventional long-span bridges in deep water. Unlike cable-supported bridges with fixed towers, floating cable-supported br...
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Jesús Armando Aguilar-Jiménez, Nicolás Velázquez, Ricardo López-Zavala, Luis A. González-Uribe, Ricardo Beltrán and Luis Hernández-Callejo
In this work, we present an absorption cooling system with 35 kW capacity driven by solar thermal energy, installed in the school of Puertecitos, Mexico, an off-grid community with a high level of social marginalization. The cooling system provides therm...
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Zili Zhang, Søren R. K. Nielsen, Frede Blaabjerg and Dao Zhou
Lateral tower vibrations of offshore wind turbines are normally lightly damped, and large amplitude vibrations induced by wind and wave loads in this direction may significantly shorten the fatigue life of the tower. This paper proposes the modeling and ...
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