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Haonan Tian, Zhongbao Wei, Sriram Vaisambhayana, Madasamy Thevar, Anshuman Tripathi and Philip Kjær
Medium-frequency (MF) transformer has gained much popularity in power conversion systems. Temperature control is a paramount concern, as the unexpected high temperature declines the safety and life expectancy of transformer. The scrutiny of losses and th...
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Hyun-Gi Kim, Bum-Joon Kim and Kwang-Ho Lee
Concrete foundations have received attention as offshore wind turbine support structures because of their various advantages. However, because of the lack of information on structural analysis and the design method of complex marine environmental loads, ...
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Xuyang Liu, Jiayang Pang, Lei Li, Weiqiang Zhao, Yupeng Wang, Dandan Yan, Lingjiu Zhou and Zhengwei Wang
Because a pump-turbine mainly undertakes the role of energy conversion and pumped storage in the field of hydropower engineering, the complex transition process and frequent conversion between different working conditions lead to the increase in the stre...
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Jian-Hong Wan, Rui Bai, Xue-You Li and Si-Wei Liu
Assessment of the natural frequency of the offshore wind turbine (OWT) system is a critical task in design to avoid resonance. The natural frequency of the monopile supported OWT may change during operation and needs to be calculated regularly. Conventio...
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Young-Suk You, Ka-Young Song and Min-Young Sun
Resonance causes extreme stress, acceleration of fatigue, and reduction in lifespan of offshore wind structures. The main factors that cause resonance are environmental loads such as wind and waves, and dynamic loads caused by rotor movement. Estimation ...
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Gokhan Serhat and Katherine J. Kuchenbecker
Computational analysis of free and forced vibration responses provides crucial information on the dynamic characteristics of deformable bodies. Although such numerical techniques are prevalently used in many disciplines, they have been underutilized in t...
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Kemachart Kemavuthanon and Osamu Uchida
Natural disasters are events that humans cannot control, and Japan has suffered from many such disasters over its long history. Many of these have caused severe damage to human lives and property. These days, numerous Japanese people have gained consider...
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Yongsheng Zhao, Jianmin Yang and Yanping He
Currently, floating wind turbines (FWTs) may be the more economical and suitable systems with which to exploit offshore wind energy in deep waters. Among the various types of floating foundations for offshore wind farms, a tension leg platform (TLP) foun...
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Xinpeng Wang, Shengxiang Huang, Chao Kang, Guanqing Li and Chenfeng Li
When the dynamic characteristics of a bridge structure are analyzed though Hilbert?Huang transform (HHT), the noise contained in the bridge dynamic monitoring data may seriously affect the performance of the first natural frequency identification. A time...
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Dong Min Kim, Soon Ho Hong, Se Hyeon Jeong and Sun Je Kim
The interest in wind-assisted ship propulsions (WASPs) is increasing to improve fuel efficiency and to reduce greenhouse gas emissions in ships. A rotor sail, one of the typical WASPs, can provide auxiliary propulsive force by rotating a cylinder-shaped ...
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Baofeng Zhou, Bo Liu, Xiaomin Wang, Jingchang Kong and Cong Zhang
In structural response array observation, the vibration response of a structure during an earthquake or from the natural environment is recorded and stored using high-sensitivity strong motion seismographs, and the dynamic characteristics of the structur...
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Arjun Poudel, Seungwon Kim, Byoung Hooi Cho and Janghwan Kim
Composite bridges are typically exposed to temperature variations due to heat radiation, conduction, and convection. Temperature affects the modal parameters of bridges, hindering the application of damage detection methods based on the dynamic propertie...
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Esmail Elhomdy, Zheng Liu and Guofeng Li
In the process of electric motor design, it is essential to predict and provide an accurate thermal and mechanical model. The aim of this research is to improve the thermal and mechanical performance?which is implemented into a 72/48 switched reluctance ...
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Hui Li, Zhengxue Zhou, Hai Sun, Wei Sun and Bangchun Wen
The influence of hard coating on vibration characteristics of fiber-reinforced composite thin shell (FCTS) is investigated theoretically. The theoretical model of the hard coating FCTS is firstly established by using the classical laminated shell theory,...
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Changxi Liu, Jun Hu, Zhaonan Yu, Yufei Li, Shengxue Zhao, Qingda Li and Wei Zhang
A fast spraying speed, wide working area, and easy operation are the operational advantages of high-clearance boom sprayers. To address the issue of spray boom mechanical vibration affecting the spraying effect, a double-link trapezoidal boom suspension ...
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Xinzhong Wang, Tianyu Hong, Weiquan Fang and Xingye Chen
The technology of plastic film mulching is widely applied in Xinjiang, but it also brings about serious issues of residual film pollution. Currently, the 1MSF-2.0 residual film recovery machine can effectively address the problem. However, it faces chall...
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Jian Tan, Yulong Zhang, Li Zhang, Qingfeng Duan, Chen An and Menglan Duan
The transportation of seawater on a grand scale via an ultra-large cold-water pipe situated within the context of ocean thermal energy conversion (OTEC) floating installations inherently presents challenges associated with instability and potential malfu...
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Kritchanan Charoensuk and Thunyaseth Sethaput
Vibration is challenging and significant in solving engineering problems. The issue of vibration in loaded objects by utilizing a three-dimensional model and experiments. Typically, an object is subjected to a random frequency, which changes the notch sh...
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Gabriel Castro and Grover Zurita
There have been steadily growing requirements from the academia and industry, demanding non-invasive methods and reliable measurement systems of research devoted to operational mode analysis (OMA). Due to the simplicity of performing only structures surf...
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Kalfin, Sukono, Sudradjat Supian and Mustafa Mamat
Climate change that occurs causes the risk of natural disasters to continue to increase throughout the world. Economic losses are unavoidable, leading to the need for continuous innovation in post-disaster economic recovery efforts. Insurance is one of t...
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