Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Point Cloud-Based Spatial Environment Development for Near Real-Time Erection Simulation in Shipyards

  • Yeon-Jun Kim (Department of Ocean System Engineering, Mokpo National Maritime University) ;
  • SeungYeol Wang (Department of Ocean System Engineering, Mokpo National Maritime University) ;
  • Jaewon Jang (Sustainable Ship Technology Center, Industry-Academy Cooperation Foundation of Mokpo National Maritime University) ;
  • Bon-Yeong Park (Department of Naval Architecture and Ocean Engineering, Mokpo National Maritime University) ;
  • Dong-Kun Lee (Department of Naval Architecture and Ocean Engineering, Mokpo National Maritime University) ;
  • Daekyun Oh (Sustainable Ship Technology Center, Industry-Academy Cooperation Foundation of Mokpo National Maritime University)
  • Received : 2023.09.26
  • Accepted : 2023.11.27
  • Published : 2023.12.31
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Abstract

Interference and collisions often occur in the loading process at shipyards. Existing simulation methods focus primarily on resource processes and schedules, and there is a lack of real-time reflection in the complex and highly variable loading process. This study aims to develop a spatial environment incorporating real-time product data, such as hulls, and confirms its effectiveness by simulating various construction scenarios. As a method, a near real-time spatial environment based on broadband laser scanning was established, with the situation of loading heavy cargo assumed when converting an existing ship into an LNG dual-fuel propulsion ship. A case study simulation of near-real-time cargo loading processes was then conducted using Unity 3D to confirm the interference and collision risks within the spatial environment. The results indicated that interference occurred in structures previously not identified in the design data, and a collision occurred during the loading object erection phase. The simulation confirmed that the identification of interference and collision risks during the erection phase highlights the need for a relocation or removal process of potential hazards before erection takes place. An improved erection simulation that integrates near real-time data could effectively prevent interference and collision risks.

Keywords

Acknowledgement

This paper was supported by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) (P0017006, The Competency Development Program for Industry Specialist)

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