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Due to their multipurpose capacity, RoPax ships continue to be a primary necessity worldwide, especially in developing archipelagos countries. Ironically, they also contribute significantly to the highest number of accidents, especially the RoPax open car deck (OCD). Most RoPax vessels are of the OCD type for short and medium routes. To enhance the survivability of these ships, side casings have been added to both the right and left sides of the vehicle deck. This paper discusses the experimentsExperimentinvolving inboard side casingsInboard Side Casings (InSC)(InSC) andOutboard Side Casings (OutSC) outboard side casings (OutSC) on RoPax OCDRoPax OCD vessels. The research method consists of creating a 1:40 scale model of existing ships and testing in a flume tank laboratory following the ITTC-75-02-07-041 procedure. The experimental results demonstrate that RoPax OCDRoPax OCDOutScOutboard Side Casings (OutSC) exhibits a damping of 3.003E-05 m-ton-sec, while InSCInboard Side Casings (InSC) exhibits a damping of 1.394E-05 m-ton-sec. OutSC’s damping is 2.2 times greater than that of InSC. This difference arises because, in the RoPax OCDRoPax OCDOutSCOutboard Side Casings (OutSC) at small heel angles, the flat part of the side casing extending from the ship’s hull becomes submerged, providing a more substantial damping effect.

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Roll Decay Experiment on RoPax Open Car Deck with Inboard Side Casings and Outboard Side Casings

  • 章节

  • 发表日期：

    2026年

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  • Hasanudin,
  • Achmad Zubaydi,
  • Wasis Dwi Aryawan,
  • Ardi Nugroho Yulianto,
  • Windha Umi Alifia

摘要

Due to their multipurpose capacity, RoPax ships continue to be a primary necessity worldwide, especially in developing archipelagos countries. Ironically, they also contribute significantly to the highest number of accidents, especially the RoPax open car deck (OCD). Most RoPax vessels are of the OCD type for short and medium routes. To enhance the survivability of these ships, side casings have been added to both the right and left sides of the vehicle deck. This paper discusses the experimentsExperimentinvolving inboard side casingsInboard Side Casings (InSC)(InSC) andOutboard Side Casings (OutSC) outboard side casings (OutSC) on RoPax OCDRoPax OCD vessels. The research method consists of creating a 1:40 scale model of existing ships and testing in a flume tank laboratory following the ITTC-75-02-07-041 procedure. The experimental results demonstrate that RoPax OCDRoPax OCDOutScOutboard Side Casings (OutSC) exhibits a damping of 3.003E-05 m-ton-sec, while InSCInboard Side Casings (InSC) exhibits a damping of 1.394E-05 m-ton-sec. OutSC’s damping is 2.2 times greater than that of InSC. This difference arises because, in the RoPax OCDRoPax OCDOutSCOutboard Side Casings (OutSC) at small heel angles, the flat part of the side casing extending from the ship’s hull becomes submerged, providing a more substantial damping effect.