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Volume 28 Issue 3
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2020  >  28(3): 252-258
SUN Xiu-jun, WANG Li-wei, SANG Hong-qiang. Gliding Dynamics Analysis for Underwater Tractor of Wave Glider[J]. Journal of Unmanned Undersea Systems, 2020, 28(3): 252-258. doi: 10.11993/j.issn.2096-3920.2020.03.002
Citation: SUN Xiu-jun, WANG Li-wei, SANG Hong-qiang. Gliding Dynamics Analysis for Underwater Tractor of Wave Glider[J]. Journal of Unmanned Undersea Systems, 2020, 28(3): 252-258. doi: 10.11993/j.issn.2096-3920.2020.03.002
shu

Gliding Dynamics Analysis for Underwater Tractor of Wave Glider

doi: 10.11993/j.issn.2096-3920.2020.03.002
  • 1.

    School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China

  • 2.

    Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China

  • 3.

    Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China

  • 4.

    School of Mechanical Engineering, Tianjin Polytechnic University, Tianjin 300387, China

  • Received Date: 2019-10-11
  • Rev Recd Date: 2019-11-19
  • Publish Date: 2020-06-30
    Abstract
  • The longitudinal velocity of wave glider is closely related to the structural parameters of the underwater tractor, especially, the self-weight of the underwater tractor and the maximum pitch angle of the hydrofoil are crucial. In this study, a dynamic model of the hydrofoil of the Sea Sentry wave glider was established by using the Newton-Euler equations to simulate the optimum weight of the underwater tractor and the optimum pitch angle of the hydrofoil in computational fluid dynamics(CFD) simulation software. Furthermore, the simulation results were compared with the test data. Due to the influence of various factors, there is a certain deviation between the two kinds of data, but the general trends are similar, and the data show that 20° pitch angle is the optimal pitch angle of hydrofoil. Under the level three sea condition, the self-weight of 45 kg can make the underwater tractor more suitable for wave characteristics in terms of gliding time and gliding dis-placement. The effects of the weight and pitch angle on propulsion efficiency were studied under the condition that some parameters were fixed, which provided reference for the subsequent parameter optimization and design of wave glider.

     

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    • References(11)
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