等效分析法在分析老龄化船舶抗碰撞性能中的应用

胡锦文 张乃樑 尤小健 蔡如桦 程萍

胡锦文, 张乃樑, 尤小健, 蔡如桦, 程萍. 等效分析法在分析老龄化船舶抗碰撞性能中的应用[J]. 爆炸与冲击, 2019, 39(7): 074201. doi: 10.11883/bzycj-2018-0143
引用本文: 胡锦文, 张乃樑, 尤小健, 蔡如桦, 程萍. 等效分析法在分析老龄化船舶抗碰撞性能中的应用[J]. 爆炸与冲击, 2019, 39(7): 074201. doi: 10.11883/bzycj-2018-0143
HU Jinwen, ZHANG Nailiang, YOU Xiaojian, CAI Ruhua, CHENG Ping. Application of equivalent analysis to analyzing anti-collision performance of aged ships[J]. Explosion And Shock Waves, 2019, 39(7): 074201. doi: 10.11883/bzycj-2018-0143
Citation: HU Jinwen, ZHANG Nailiang, YOU Xiaojian, CAI Ruhua, CHENG Ping. Application of equivalent analysis to analyzing anti-collision performance of aged ships[J]. Explosion And Shock Waves, 2019, 39(7): 074201. doi: 10.11883/bzycj-2018-0143

等效分析法在分析老龄化船舶抗碰撞性能中的应用

doi: 10.11883/bzycj-2018-0143
基金项目: 国家能源局关键技术及装备研发项目(NY20150202)
详细信息
    作者简介:

    胡锦文(1988- ),男,硕士,高级工程师,2007.hujinwen@163.com

  • 中图分类号: O347; U662.2

Application of equivalent analysis to analyzing anti-collision performance of aged ships

  • 摘要: 为了简化评估结构疲劳损伤后的抗碰撞性能,仿照结构蠕变分析中的等时应力-应变曲线的思想,提出了一种基于应变等效的等效分析法,并与通常的一般分析方法进行了比较。对比分析结果表明:等效分析法与通常的一般分析方法模拟的结构最大抗破坏作用力几乎相同,并且两者模拟的结构破坏能相对误差较小。这验证了等效分析法的有效性,说明等效分析法可用于船舶全寿命期内抗碰撞性能的快速评估。
  • 图  1  疲劳损伤老龄化船舶抗碰撞冲击分流程图

    Figure  1.  Flowchart of anti-collision analysis for aged ship with fatigue damage

    图  2  通常船舶结构中典型的碰撞冲击

    Figure  2.  Typical collision of ship structures

    图  3  在工况1中的材料等效应力应变曲线

    Figure  3.  Equivalent stress-strain curves of material in the load case 1

    图  4  在工况2中的材料等效应力应变曲线

    Figure  4.  Equivalent stress-strain curves of material in the load case 2

    图  5  在工况3中的材料等效应力应变曲线

    Figure  5.  Equivalent stress-strain curves of material in the load case 3

    图  6  在工况4中的材料等效应力应变曲线

    Figure  6.  Equivalent stress-strain curves of material in the load case 4

    图  7  在工况5中的材料等效应力应变曲线

    Figure  7.  Equivalent stress-strain curves of material in the load case 5

    图  8  工况1下一般分析法与等效分析法结果对比

    Figure  8.  Comparison of the general simulation and the equivalent simulation in the load case 1

    图  9  工况2下一般分析法与等效分析法结果对比

    Figure  9.  Comparison of the general simulation and the equivalent simulation in the load case 2

    图  10  工况3下一般分析法与等效分析法结果对比

    Figure  10.  Comparison of the general simulation and the equivalent simulation in the load case 3

    图  11  工况4下一般分析法与等效分析法结果对比

    Figure  11.  Comparison of the general simulation and the equivalent simulation in the load case 4

    图  12  工况5下一般分析法与等效分析法结果对比

    Figure  12.  Comparison of the general simulation and the equivalent simulation in the load case 5

    表  1  疲劳损伤分析及碰撞分析工况

    Table  1.   The load cases of fatigue damage analysis and collision analysis

    工况疲劳工程应力幅/MPa循环次数极限循环次数碰撞冲击速度/(m·s–1)
    1397.51001 6800.5
    2496.950146
    380
    4596.21018
    515
    下载: 导出CSV

    表  2  不同工况下一般分析法与等效分析法结果对比

    Table  2.   Comparison of the general simulation and the equivalent simulation in the different load cases

    工况破坏能/J一般分析方法与等效分析法相对误差/%
    不考虑损伤的结构考虑损伤的一般分析方法考虑损伤的等效分析法
    163 64862 60561 3382.02
    257 49060 0494.45
    356 17756 2600.14
    456 83057 9001.88
    556 98454 2344.82
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-04-26
  • 修回日期:  2018-07-20
  • 刊出日期:  2019-07-01

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