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搁浅船舶扳正过程计算方法

潘德位 林成新 孙德平 周超玉

潘德位, 林成新, 孙德平, 周超玉. 搁浅船舶扳正过程计算方法[J]. 交通运输工程学报, 2014, 14(4): 53-63.
引用本文: 潘德位, 林成新, 孙德平, 周超玉. 搁浅船舶扳正过程计算方法[J]. 交通运输工程学报, 2014, 14(4): 53-63.
PAN De-wei, LIN Cheng-xin, SUN De-ping, ZHOU Chao-yu. Calculation method of grounding ship during righting process[J]. Journal of Traffic and Transportation Engineering, 2014, 14(4): 53-63.
Citation: PAN De-wei, LIN Cheng-xin, SUN De-ping, ZHOU Chao-yu. Calculation method of grounding ship during righting process[J]. Journal of Traffic and Transportation Engineering, 2014, 14(4): 53-63.

搁浅船舶扳正过程计算方法

基金项目: 

交通运输部科技项目 2013 328 225 080

高等学校博士学科点专项科研基金项目 20122125120013

中央高校基本科研业务费专项资金项目 3132014303

详细信息
    作者简介:

    潘德位(1986-), 男, 辽宁大连人, 大连海事大学工学博士研究生, 从事船舶打捞研究

    林成新(1963-), 男, 山东威海人, 大连海事大学教授, 工学博士

  • 中图分类号: U675.9

Calculation method of grounding ship during righting process

More Information
    Author Bio:

    PAN De-wei(1986-), male, doctoral student, +86-411-84724292, wssrwsmt@163.com

    LIN Cheng-xin(1963-), male, professor, PhD, +86-411-84724292, Ich_xin@126.com

  • 摘要: 为了研究搁浅船舶的打捞, 计算了船舶扳正过程中搁坐力和纵倾角的变化, 分析了船舶舱室内的自由液面在搁浅船舶扳正过程中的作用。根据搁浅船舶的受力特点, 建立了其力学模型。针对传统搁坐力计算方式的缺点, 利用GHS软件模拟搁浅船舶的扳正过程, 并以某搁浅船舶为例, 求解该过程中各搁坐点的搁坐力、总搁坐力、横倾角和纵倾角。通过仿真模拟, 比较了船舶不同搁浅状态的扳正过程, 分析了搁坐点位置、吃水、船体型线和船舶重力分布对搁浅船舶受力和姿态的影响。分析结果表明: 搁坐点位置相对分散或船体吃水较深时, 船体的纵倾角变化相对较小, 变化量为其他类型的0.1%~2.0%;搁坐点关于船舯非对称产生的总搁坐力变化量相对搁坐点关于船舯对称产生的总搁坐力较小, 前者变化量为后者的35%~65%;舱室内自由液面的存在加大了搁浅船舶打捞的难度, 因此, 在制定打捞方案时应该着重考虑其影响; 施工过程中也应控制搁浅船舶翻转的速度, 避免阻碍扳正工作或对船舶产生进一步的破坏。

     

  • 图  1  搁浅船舶

    Figure  1.  Grounding ship

    图  2  船舶纵向变形

    Figure  2.  Longitudinal deformation of ship

    图  3  船体和舱室

    Figure  3.  Hull and cabin

    图  4  类型A的船舶搁浅状态

    Figure  4.  Ship grounding status of type A

    图  5  类型B的船舶搁浅状态

    Figure  5.  Ship grounding status of type B

    图  6  类型C的船舶搁浅状态

    Figure  6.  Ship grounding status of type C

    图  7  纵倾角变化曲线

    Figure  7.  Variation curves of trim angles

    图  8  总搁坐力变化曲线

    Figure  8.  Variation curves of total grounding forces

    图  9  最大剪力变化曲线

    Figure  9.  Variation curves of maximum shear forces

    图  10  最大弯矩变化曲线

    Figure  10.  Variation curves of maximum bending moments

    图  11  最大扭矩变化曲线

    Figure  11.  Variation curves of maximum torques

    表  1  船舶主尺度

    Table  1.   Principal dimensions of ship

    下载: 导出CSV
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出版历程
  • 收稿日期:  2014-02-13
  • 刊出日期:  2014-08-25

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