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Guofang Nan, Sirui Yang and Dengliang Yu
When the dual rotor system of the aircraft engine is operating, the mass eccentricity of the power turbine rotor and the misalignment of the shaft coupling or the bearing will cause too large vibration of the rotor; this vibration leads to the rub-impact...
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Jordi Renau Martínez, Víctor García Peñas, Manuel Ibáñez Arnal, Alberto Giménez Sancho, Eduardo López González, Adelaida García Magariño, Félix Terroba Ramírez, Francisco Javier Moreno Ayerbe and Fernando Sánchez López
This article presents the design and manufacturing of a hydrogen-powered unmanned aquatic surface vehicle (USV) hull. The design process comprised three stages: (1) defining the requirements for a preliminary geometry, (2) verifying the hydrodynamic hull...
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Yanqi Wang, Xinyan Qin, Wenxing Jia, Jin Lei, Dexin Wang, Tianming Feng, Yujie Zeng and Jie Song
In order to improve the flight efficiency of a flying?walking power transmission line inspection robot (FPTLIR) during flight missions, an accurate energy consumption model is constructed, and a multiobjective optimization approach using the improved NSG...
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Tuo Jia, Tucun Shao, Qian Liu, Pengcheng Yang, Zhinuo Li and Heng Zhang
As countries attach great importance to the ocean-going navigation capability of ships, the energy consumption of shipborne equipment has attracted much attention. Although energy consumption analysis is a guiding method to improve energy efficiency, it ...
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Lihong Li, Jing Shi, Hao Liu, Ruyu Zhang and Chunbing Guo
Power construction projects (PCPs) consume a large amount of energy and contribute significantly to carbon emissions. There is relatively little research on carbon emission reduction in PCPs, especially in predicting carbon emission reduction from a dyna...
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Yuan Zhang, Xuanyu Chen, Peng Xu, Xizeng Zhao, Ould el Moctar and Changqing Jiang
The development and utilization of wave energy, heralded as a potential leading source of clean energy worldwide, have garnered considerable attention from the global research community. Among the diverse array of wave energy converters (WECs), the raft-...
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Cherng-Jer Chueh, Chun-Hung Chien, Ching Lin, Ting-Yan Lin and Mao-Hsiung Chiang
This study aims to develop dynamic co-simulation and control for analyzing the IEA 15 MW semi-submersible floating wind turbine under Taiwan offshore-wind-farm conditions of wind and wave. The IEA 15 MW wind turbine is mounted on a UMaine VolturnUS-S ref...
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Zhenquan Zhang, Jian Qin, Dengshuai Wang, Shuting Huang, Yanjun Liu and Gang Xue
In this paper, a variable damper is proposed to regulate the efficiency of a two-body wave energy converter (WEC) with mechanically driven power take-off (PTO). The variable damper introduces logic constraints into the WEC system, which can be translated...
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Hoi-Yi Tong, Tsung-Yueh Lin and Shiu-Wu Chau
This study predicted the motion response and power performance of a floating wind turbine system equipped with a semisubmersible Taida platform, an IEA 15 MW wind turbine, and a 3 × 2 mooring design in the Hsinchu offshore area in the Taiwan Strait. The ...
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Ali S. Haider, Kush Bubbar and Alan McCall
Achieving energy maximizing control of a Wave Energy Converter (WEC) not only needs a comprehensive dynamic model of the system?including nonlinear hydrodynamic effects and nonlinear characteristics of Power Take-Off (PTO)?but to treat the entire system ...
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