International Journal of Naval Architecture and Ocean Engineering

  • 제8권2호
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  • Pages.177-187
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  • 2016
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  • 2092-6782(pISSN)
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  • 2092-6790(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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Tractive performance evaluation of seafloor tracked trencher based on laboratory mechanical measurements

  • Wang, Meng (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University) ;
  • Wang, Xuyang (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University) ;
  • Sun, Yuanhong (North China Sea Marine Technical Support Center, State Oceanic Administration) ;
  • Gu, Zhimin (North China Sea Marine Technical Support Center, State Oceanic Administration)
  • 투고 : 2015.10.06
  • 심사 : 2016.01.25
  • 발행 : 2016.03.31
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초록

To evaluate the tractive performance of tracked trencher on seafloor surface, a new shear stress-displacement empirical model was proposed for saturated soft-plastic soil (SSP model). To validate the SSP model, a test platform, where track segment shear test can be performed in seafloor soil simulacrum (bentonite water mixture), was built. Series shear tests were carried out. Test results indicate that the SSP model can describe the mechanical behavior of track segment with good approximation in seafloor soil simulacrum. Through analyzing the main external forces applied to seafloor tracked trencher during the uniform linear trenching process, a drawbar pull prediction model was deduced with the SSP model. A tracked walking mechanism of the seafloor tracked trencher prototype was built, and verification tests were carried out. Test results indicate that this prediction model was feasible and effective; moreover, from another side, this conclusion also proved that the SSP model was effective.

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참고문헌

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  1. Upper-Bound Analysis for Soil Thrust of Single-Track System over Clay Ground vol.20, pp.2, 2016, https://doi.org/10.1061/(asce)gm.1943-5622.0001565
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  3. A Modified Pressure-Sinkage Model for Studying the Effect of a Hard Layer in Sandy Loam Soil vol.11, pp.12, 2016, https://doi.org/10.3390/app11125499
  4. Effect of track shoes structural parameters on traction performance of unmanned underwater tracked bulldozer vol.237, pp.None, 2016, https://doi.org/10.1016/j.oceaneng.2021.109655