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<p>In offshore cargo handling operations, the vessel inevitably experiences complex wave-induced motions such as rolling, pitching and heaving, which affect the normal operation of vessel board cranes. In this study, a marine 3-DOF folding jib crane was proposed to compensate for wave-induced vessel motions. The folding jib crane is specially designed according to the wave-induced vessel motions and feedback control system based on position information was constructed for compensating motion. A scaled-down prototype of the folding jib crane was constructed and a Stewart platform was used to simulate the wave-induced vessel motions for experimentally evaluating the compensation performance. The experimental results showed that the proposed 3D folding jib crane can effectively compensate the wave-induced motion with the compensation effect better than 81 %, confirming the effectiveness of the proposed compensation scheme.</p>

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Development of a marine 3-DOF folding jib crane for wave compensation

  • 期刊论文

  • 发表日期：

    2025年3月13日

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  • Zongyu Chang,
  • Bowen Zhang,
  • Wenqing Li,
  • Pinghu Ni,
  • Jinyi Li,
  • Chao Tang,
  • Yipeng Zhang,
  • Haibo Wang

摘要

In offshore cargo handling operations, the vessel inevitably experiences complex wave-induced motions such as rolling, pitching and heaving, which affect the normal operation of vessel board cranes. In this study, a marine 3-DOF folding jib crane was proposed to compensate for wave-induced vessel motions. The folding jib crane is specially designed according to the wave-induced vessel motions and feedback control system based on position information was constructed for compensating motion. A scaled-down prototype of the folding jib crane was constructed and a Stewart platform was used to simulate the wave-induced vessel motions for experimentally evaluating the compensation performance. The experimental results showed that the proposed 3D folding jib crane can effectively compensate the wave-induced motion with the compensation effect better than 81 %, confirming the effectiveness of the proposed compensation scheme.