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Du, Yunlu (author), Huang, Yunkai (author), Guo, Baocheng (author), Djelloul-Khedda, Zakarya (author), Peng, Fei (author), Yao, Y. (author), Dong, J. (author)
In this article, a nonlinear semianalytical model (SAM) is presented to predict the magnetic field distribution (MFD) and electromagnetic performances (EPs) in the cubic spoke-type permanent magnet (PM) machine. To model the rectangular PMs, the rectangular PM is simplified as a combination of fan-shaped regions with different arc angles....
journal article 2024
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Du, Yunlu (author), Huang, Yunkai (author), Guo, Baocheng (author), Zhu, Zichong (author), Peng, Fei (author), Dong, J. (author)
In this article, an efficient multi-objective optimization strategy for the Halbach array permanent magnet synchronous machine (PMSM) is developed by taking into consideration the nonlinear B-H behavior of soft magnetic materials. Based on the harmonic modeling (HM) technology, the electromagnetic performances (EPs) of the Halbach array PMSM...
journal article 2023
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Guo, Xinghan (author), Stramma, Alexander M. (author), Li, Zixi (author), Roth, William G. (author), Huang, Benchen (author), Jin, Yu (author), Parker, Ryan A. (author), Arjona Martínez, Jesús (author), Pingault, B.J. (author)
Robust spin-photon interfaces in solids are essential components in quantum networking and sensing technologies. Ideally, these interfaces combine a long-lived spin memory, coherent optical transitions, fast and high-fidelity spin manipulation, and straightforward device integration and scaling. The tin-vacancy center (SnV) in diamond is a...
journal article 2023
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Du, Yunlu (author), Huang, Yunkai (author), Guo, Baocheng (author), Peng, Fei (author), Dong, J. (author)
This article proposes a nonlinear semianalytical model (SAM) of the multiphase Halbach array axial flux permanent-magnet motor (AFPMM) to speed up the computation of its magnetic field. Compared to the existing analytical models, the proposed nonlinear SAM can directly consider magnetic saturation to obtain more accurate results. To this end,...
journal article 2023
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Wang, Kai (author), Hua, Yu (author), Huang, Lianzhong (author), Guo, Xin (author), Liu, Xing (author), Ma, Zhongmin (author), Ma, Ranqi (author), Jiang, X. (author)
Optimization of ship energy efficiency is an efficient measure to decrease fuel usage and emissions in the shipping industry. The accurate prediction model of ship energy usage is the basis to achieve optimization of ship energy efficiency. This study investigates the sequential properties of the actual voyage data from a VLOC. On this basis,...
journal article 2023
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Cao, Zhi (author), Huang, Yunkai (author), Guo, Baocheng (author), Peng, Fei (author), Dong, J. (author), Hemeida, Ahmed (author)
To facilitate the active magnetic bearing (AMB) design and analysis, an accurate and fast model that considers both rotor eccentricity and the saturation effect is necessary. In this article, a novel hybrid analytical model (HAM) for effective calculation of the magnetic field of the AMB is proposed. Eccentricity and local saturation are...
journal article 2022
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Guo, Baocheng (author), Du, Yunlu (author), Djelloul KHEDDA, Zakarya (author), Peng, Fei (author), Dong, J. (author), Huang, Yunkai (author), Frederic, Dubas (author), Boughrara, Kamel (author)
In this article, we propose a novel nonlinear semianalytical model (AM) for the magnetic field calculation of electric machines. The nonlinear properties and local saturation effect of the iron part are taken into consideration in Cartesian coordinates, which is the main contribution of the proposed model. Thus, high accuracy of...
journal article 2022
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Wu, Xinhao (author), Guo, Y. (author), Gu, Yuxing (author), Xie, Fenghua (author), Li, Mengran (author), Hu, Zhiwei (author), Lin, Hong Ji (author), Pao, Chih Wen (author), Huang, Yu Cheng (author)
Electrochemical carbon dioxide (CO<sub>2</sub>) reduction (ECR) is a promising technology to produce valuable fuels and feedstocks from CO<sub>2</sub>. Despite large efforts to develop ECR catalysts, the investigation of the catalytic performance and electrochemical behavior of complex metal oxides, especially perovskite oxides, is rarely...
journal article 2022
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Guo, Wenhao (author), Hu, Jie (author), Ma, Yuwei (author), Huang, Haoliang (author), Wei, Jiangxiong (author), Yu, Qijun (author)
Impressed current cathodic protection (ICCP) is an effective corrosion protection and prevention technique for reinforced concrete structures served in chloride-contaminated environment. The acidification damage in the external anode mortar caused by the anodic reactions significantly influences the efficiency of ICCP for reinforced concrete....
conference paper 2021
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Zhang, Fan (author), Zhou, He (author), Huang, Panfeng (author), Guo, J. (author)
The tethered formation system has been widely studied due to its extensive use in aerospace engineering, such as Earth observation, orbital location, and deep space exploration. The deployment of such a multitethered system is a problem because of the oscillations and complex formation maintenance caused by the space tether's elasticity and...
journal article 2021
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Guo, Bingbing (author), Li, Z. (author), Fu, Qiang (author), Wang, Yan (author), Huang, Daguan (author), Niu, Ditao (author)
Utilizing coral aggregate concrete (CAC) for construction on remote islands can significantly reduce construction cost and period, CO<sub>2</sub> emission, and consumption of non-renewable energy. The durability of reinforced CAC structures is critically influenced by their resistance to chloride attack. In this study, a reactive transport...
journal article 2021
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Guo, Baocheng (author), Huang, Yunkai (author), Peng, Fei (author), Dong, J. (author), Li, Yongjian (author)
This paper proposes an analytical model for the prediction of air gap magnetic field distribution for axial flux permanent magnet (AFPM) machine with various types of misalignments. The AFPM machine geometry is first transformed to a polar representation. Consequently, the subdomain model based on current sheet technique is developed. Then...
journal article 2020
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Cao, Zhi (author), Huang, Yunkai (author), Guo, Baocheng (author), Dong, J. (author), Peng, Fei (author)
This paper applies two different analytical methods, i.e., the perturbation method and superposition method, to calculate the magnetic flux density distribution and the magnetic force of the active magnetic bearing (AMB) with the rotor eccentricity. These two methods are thoroughly analyzed, compared and validated by the finite element model ...
journal article 2020
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Guo, Baocheng (author), Huang, Yunkai (author), Peng, Fei (author), Dong, J. (author)
In this paper, a new hybrid model is proposed for the prediction of air gap magnetic field distribution (MFD) in interior permanent magnet machines with any rotor configuration. The slotless magnetic field is first predicted by finite-element method (FEM) with automatic scripting in MATLAB to consider saturation in the rotor iron. Afterward,...
journal article 2019
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Guo, Baocheng (author), Huang, Yunkai (author), Peng, Fei (author), Dong, J. (author)
This paper proposes an analytical model for the prediction of airgap magnetic field distribution for axial flux permanent magnet (AFPM) machine with partial magnet demagnetization. The AFPM machine geometry is first converted to a polar representation. Consequently, the subdomain model based on current sheet technique is developed. Then...
journal article 2019
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Guo, Dengyang (author), Bartesaghi, D. (author), Wei, Haotong (author), Hutter, E.M. (author), Huang, Jinsong (author), Savenije, T.J. (author)
In view of its band gap of 2.2 eV and its stability, methylammonium lead bromide (MAPbBr<sub>3</sub>) is a possible candidate to serve as a light absorber in a subcell of a multijunction solar cell. Using complementary temperature-dependent time-resolved microwave conductance (TRMC) and photoluminescence (TRPL) measurements, we demonstrate...
journal article 2017
document
Huang, F. (author), Xia, Z. (author), Li, F. (author), Guo, L. (author), Yang, F. (author)
Hydrological changes of the Irtysh River were analyzed concerning the changes of annual runoff and its distribution features within a year measured by coefficient of variation and concentration degree. Abrupt changes were detected by the heuristic segmentation method. Possible causes of the hydrological changes were investigated considering...
journal article 2012
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