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Fuyin Cui, Shuling Chen, Hongbin Hao, Changzhi Han, Ruidong Ni and Yueyue Zhuo
To address the unstable motion of a tension leg platform (TLP) for floating wind turbines in various sea conditions, an improved method of incorporating a tuned liquid multi-column damper (TLMCD) into the TLP foundation is proposed. In order to evaluate ...
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Hao Li, Yuping Li, Zhongliang Zhao, Xiaobing Wang, Haiyong Yang and Shang Ma
To research serious nonlinear coupling problems among aerodynamics, flight mechanics, and flight control during high maneuvers, a virtual flight testing platform has been developed for a large-scale, high-speed wind tunnel, based on the real physical env...
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Wenxiang Yang, Yaozhen Han, Ronglin Ma, Mingdong Hou and Guang Yang
The floating platform motion of an offshore wind turbine system can exacerbate output power fluctuations and increase fatigue loads. This paper proposes a new scheme based on a fast second-order sliding mode (SOSM) control and an adaptive super-twisting ...
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Jia Yuan, Zhen Liu, Hua Geng, Songtao Zhang, Lihua Liang and Peng Zhao
In order to reduce the offshore wind power operation and maintenance vessel motion induced by severe sea states, a suitable stabilizer with the ship based on linear quadratic regulator strategy is proposed in this paper. First of all, the dynamics of the...
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Seydali Ferahtia, Azeddine Houari, Mohamed Machmoum, Mourad Ait-Ahmed and Abdelhakim Saim
Due to the present trend in the wind industry to operate in deep seas, floating offshore wind turbines (FOWTs) are an area of study that is expanding. FOWT platforms cause increased structural movement, which can reduce the turbine?s power production and...
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Ahsan Tanveer and Sarvat Mushtaq Ahmad
Pitch control of an unmanned aerial vehicle (UAV) using fluidic thrust vectoring (FTV) is a relatively novel technique requiring no moving control surfaces, such as elevators. In this paper, the authors? previous work on the characterization of a static ...
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Yu Gu, Guoxin Zhang, Ying Bi, Wenyue Meng, Xiaoping Ma and Wenjun Ni
Moving mass control (MMC) is considered a promising approach to regulating the attitude of an aircraft via the motion of internal moving masses. The present investigation proposes a moving mass control scheme for a high-altitude long-endurance (HALE) unm...
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Shuang Liu, Yaozhen Han, Ronglin Ma, Mingdong Hou and Chao Kang
It is of great importance to simultaneously stabilize output power and suppress platform motion and fatigue loads in floating offshore wind turbine control systems. In this paper, a novel composite blade pitch control scheme considering actuator fault is...
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Jingfu Wang, Songtao Zhang, Jiahuan Cheng, Yunfei Li, Yan Shen and Zihao Wu
As an essential transportation equipment for personnel to access offshore wind plants, the safety and stability of the turbine access system (TAS) have gained increasing significance. However, when sea conditions deteriorate, the end of the TAS will expe...
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Fengrui Zhang, Dayong Ning, Jiaoyi Hou, Hongwei Du, Hao Tian, Kang Zhang and Yongjun Gong
Efficiently salvaging shipwrecks is of the utmost importance for safeguarding shipping safety and preserving the marine ecosystem. However, traditional methods find it difficult to salvage shipwrecks in deep water. This article presents a novel salvage t...
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