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Dynamic properties of the corrugated stainless steel membrane reinforced with the glass composite pressure resisting structure for LNG carriers

机译：LNG船用玻璃复合耐压结构增强的波纹不锈钢膜的动力特性

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摘要

The primary barrier of cryogenic containment system (CCS) of liquefied natural gas (LNG) carriers is composed of corrugated stainless steel to reduce the thermal stress at the LNG temperature of -163 °C under the pressure of 0.11 MPa. The corrugation of the primary barrier not only buckles easily by the cavitation impact of LNG, but also produces large tumbling noise, which irritates the crews of LNG carriers. In this work, the corrugation of primary barrier was reinforced with the pressure resisting structure (PRS) of E-glass fiber epoxy composite to increase both the buckling resisting capability of the corrugation and to decrease the tumbling noise and vibration due to the cavitation impact of LNG. The natural frequency and damping ratio of the corrugation with and without PRS were measured, and various damping materials were wrapped around the PRS to determine an optimum vibration suppression structure. Also the impact load transmissibility of the primary barrier with PRS was investigated by the drop weight impact test, from which an optimum combination of PRS and the damping material has been suggested.
机译：液化天然气（LNG）载体的低温遏制系统（CCS）的主要屏障是由波纹状不锈钢制成，以降低在-163°C的LNG温度和0.11 MPa压力下的热应力。主要屏障的波纹不仅容易因液化天然气的气蚀而弯曲，而且会产生巨大的翻滚声，这会激怒液化天然气运输船的船员。在这项工作中，E-玻璃纤维环氧复合材料的耐压结构（PRS）增强了主隔层的波纹，以增加波纹的抗屈曲能力，并降低由于空化作用而产生的翻滚噪声和振动。液化天然气。测量带和不带PRS的波纹的固有频率和阻尼比，并将各种阻尼材料包裹在PRS周围，以确定最佳的减振结构。此外，还通过落锤冲击试验研究了带有PRS的主屏障的冲击载荷传递能力，从中提出了PRS和阻尼材料的最佳组合。

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  • 来源
    《Composite Structures》 |2014年第1期|382-388|共7页
  • 作者

    Dongyoung Lee; Ki Hyun Kim; Ilbeom Choi; Dai Gil Lee;

  • 作者单位

    Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;

    Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;

    Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;

    Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Glass composite pressure resisting structure; (PRS); LNG; Corrugation; Vibration reduction; Damping material; Force transmissibility;

    机译：玻璃复合耐压结构;（PRS）;液化天然气;瓦楞纸;减振;阻尼材料;力传递;

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