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Majid Aleyaasin
In this paper, the vibration control of the multivariable model of rotor bearing systems is considered for investigation. Some simply structured controllers that can suppress vibrational disturbances are tested for their robustness via the H8 optimality ...
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Muyu Zhao, Ying Chen and Jin Jiang
The study of hydrodynamic characteristics of floating double-rotor horizontal axis tidal current turbines (FDHATTs) is of great significance for the development of tidal current energy. In this paper, the effect of roll motion on a FDHATT is investigated...
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Bo Cheng, Shengzhao Pang, Huanyu Ou, Zeyan Hu and Zhaoyong Mao
Underwater vehicles have been widely used in marine exploration and development. A contra-rotating propeller (CRP) can improve propulsion efficiency, eliminate the roll moment of the propeller acting on underwater vehicles, and significantly improve the ...
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Linghe Yuan, Mingming Lan, Xun He, Wenhe Wei, Wanzhang Wang and Zhe Qu
To solve the problems of congestion and increased power consumption of wheat combine harvesters (WCHs) caused by excessive feed rate, this paper proposes a method to reduce the feed rate by decreasing the feed length of the stalk and designs a double-cut...
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Jiangkun Gong, Deren Li, Jun Yan, Huiping Hu and Deyong Kong
Current studies rarely mention radar detection of hybrid vertical take-off and landing (VTOL) fixed-wing drones. We investigated radar signals of an industry-tier VTOL fixed-wing drone, TX25A, compared with the radar detection results of a quad-rotor dro...
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Yongmeng Liu, Ruirui Li, Chuanzhi Sun, Ze Chen, Yingjie Mei, Pinghuan Xiao, Xiaoming Wang and Chengtian Li
To suppress the vibration of rotary parts, this paper established an unbalanced vibration response control model of rotary parts based on rotating axis coordinate system. This model considered the stacking transformation of geometric parameter errors and...
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Ryan G. Howell, Ryan R. Jensen, Steven L. Petersen and Randy T. Larsen
In situ measurements of sagebrush have traditionally been expensive and time consuming. Currently, improvements in small Unmanned Aerial Systems (sUAS) technology can be used to quantify sagebrush morphology and community structure with high resolution i...
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Chih-Chiang Hong, Deng-Maw Tsai
Pág. 37 - 43
The present application related to a rotating arm type permanent magnet motor, in particular to a permanent magnet motor that was actuated by the action of the magnetic forces of a permanent magnet stator of a stator module and two thin ring permanent ma...
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Madina Isametova,Dimitar Karaivanov,Rollan Nussipali
Pág. 49 - 58
The CAD/CAE/CAM method of end-to-end design of the impeller of a seven-stage submersible pump ODDESSEzentralasien ?UPP 13-7/6 used for pumping sulfuric acid in hydrometallurgy is presented.The studies are conducted in order to increase the efficiency of ...
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Oliver Munz, Tim Pychynski, Corina Schwitzke and Hans-Jörg Bauer
Labyrinth seals are a state-of-the-art sealing technology to prevent and control leakage flows at rotor–stator interfaces in turbomachinery. Higher pressure ratios and the economical use of cooling air require small clearances, which lead to potent...
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