Zhang Chengming

Harbin Institute of Technology, Harbin, Heilongjiang Sheng, China

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Publications (6)3.71 Total impact

  • Huang Xuzhen, Liu Jiaxi, Zhang Chengming, Li Liyi
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    ABSTRACT: This paper presents a finite element method approach for motor thermal analysis. Specifically, the 2-D temperature field model of a slotless tubular permanent magnet linear motor is established. The heat convection coefficients of the mover are then calculated based on fluid field analysis. This paper focuses on the winding to obtain an accurate winding temperature gradient distribution and to the highest temperature region from the high overload motor. Therefore, the improved equivalent layered model of the ring-shaped winding is particularly applied to the temperature field simulation of the tubular linear motor. As verification, the temperature rise of the motor is calculated accordingly, and the results are compared with the actual experiments.
    IEEE Transactions on Plasma Science 05/2013; 41(5):1182-1187. · 0.87 Impact Factor
  • Li Liyi, Zhang Chengming, Yan Baiping, Li Xiaopeng
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    ABSTRACT: This paper proposes a giant magnetostrictive valve (GMV) which uses a tube giant magnetostrictive material (GMM) rod as the actuator. Based on the analysis of the structure and magnetic field of giant magnetostrictive actuator (GMA), a GMV is designed and manufactured. The output displacement characteristics of the GMA under different temperatures are tested. The maximum magneto-strain is about 1500 ppm and the response time is about 1.8 ms. Compared with the simulation of temperature-rise characteristic computed by finite element analysis software, the results show that the internal cooling effect is significant, and the GMA continues working in a relatively stable temperature range. Then, the test bench of the GMV is set and the flow control characteristic is tested. The results show that the internal cooling on-off type giant magnetostrictive valve has many merits including a fast response speed, a stable working temperature range and high precision flow control.
    IEEE Transactions on Magnetics 11/2011; · 1.42 Impact Factor
  • Kou Baoquan, Li Liyi, Zhang Chengming
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    ABSTRACT: Release-launch is a fundamental operation in space platform. Not like traditional land-base launcher, space-base launcher is more flexible and more efficient. Tubular linear electromagnetic launcher (TLEML), which provides higher force density, simple structure and no unilateral magnetic force, compared with the flat linear electromagnetic launcher, is more suitable for space platform. It can easily meet the demand such as little volume, light weight and high control precision. This paper analyzes and optimizes the thrust characteristics of tubular linear permanent magnet synchronous motors (TL-PMSM) for electromagnetic launcher, including different topologies, interior permanent magnet (IPM) and surface-mounted permanent magnet (SPM). First, build up the finite element model for the two kinds of TLEML and calculate the magnetic field. Then thrust force fluctuation figures are obtained by finite element analysis considering the pole/arc ratio, the pole pitch and the inner diameter/outer diameter ratio of the stator. The result shows that it can improve the thrust characteristic and decrease the cogging force by optimizing the parameters of the motor.
    IEEE Transactions on Magnetics 02/2009; · 1.42 Impact Factor
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    ABSTRACT: The reservoir can both decrease the flood peaks of downstream in flood seasons and save water for drought seasons. Digital reservoir for flood control and regulation by spatial information techniques revolves around acquiring, updating, managing and serving of data about geographical information of a reservoir to build a virtual functional reservoir that makes the flood control and regulation easier and more scientific. We give the project of the software and hardware of the management system for digital reservoir. The software is mainly composed of five modules. The hardware includes the hydrological data collection terminal based on embedded system and the mixed-mode transmission network. It analyzes the impact of the data acquisition and giving anti-jamming measures. On this base, the key techniques of management system are discussed. The project was applied in XueYe reservoir and achieved good effects.
    Intelligent Information Technology Application, Workshop on; 01/2008
  • [Show abstract] [Hide abstract]
    ABSTRACT: The reservoir can both decrease the flood peaks of downstream in flood seasons and save water for drought seasons. Digital reservoir for flood control and regulation by spatial information techniques revolves around acquiring, updating, managing and serving of data about geographical information of a reservoir to build a virtual functional reservoir that makes the flood control and regulation easier and more scientific. We give the project of the software and hardware of the management system for digital reservoir. The software is mainly composed of five modules. The hardware includes the hydrological data collection terminal based on embedded system and the mixed-mode transmission network. It analyzes the impact of the data acquisition and giving anti-jamming measures. On this base, the key techniques of management system are discussed. The project was applied in XueYe reservoir and achieved good effects.
    Proceedings of the Workshop on Intelligent Information Technology Application; 12/2007
  • [Show abstract] [Hide abstract]
    ABSTRACT: The definition of “Digital Water Conservancy” is proposed on the basis of “Digital Earth” in this paper. The necessity, feasibility, construction principles of “Digital Water Conservancy” are analysed, and the framework of it is proposed, that is: key technology, basic infrastructure, and comprehensive applications. The key technology is composed of spatial information technology, management information technology, and comprehensive information technology; the basic infrastructure consists of National Information Infrastructure (NII), National Spatial Data Infrastructure (NSDI), special data of water conservancy and security measures; the comprehensive applications are made up of the management system, decision‐making models, and application systems. The above three levels supply hardware and software to water conservancy around data acquisition and updating, processing and accessing, information extraction and analysis, propagation of information, building and updating of databases, web and transmission, and decision‐making support. A spatial information infrastructure, special data of water conservancy, and decision‐making models are the core and are discussed in detail. Digital Water Conservancy is a large and complex systematic engineering, but it can be regarded as being composed of points (reservoirs and lakes), lines (rivers and their watersheds), and regions (oceans). A digital reservoir analysis is carried out in Xue Ye Reservoir, Shandong Province to provide experience for informatisation of water conservancy in China.
    New Zealand Journal of Agricultural Research - N Z J AGR RES. 01/2007; 50(5):713-718.

Publication Stats

18 Citations
3.71 Total Impact Points

Institutions

  • 2009
    • Harbin Institute of Technology
      • Department of Electrical Engineering
      Harbin, Heilongjiang Sheng, China
  • 2008
    • Shandong University of Science and Technology
      Tsingtao, Shandong Sheng, China