A method for dividing a docked half of a LNG powered ro-ro ship
By optimizing the assembly of the half-ship sections of the LNG-powered roll-on/roll-off vessel, the problems of the large weight of the LNG tank and the stern-biased center of gravity were solved, achieving efficient construction and improved safety of the half-ship, optimizing resource allocation, and shortening the construction cycle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA MERCHANTS JINLING SHIPBUILDING (JIANGSU) CO LTD
- Filing Date
- 2026-03-30
- Publication Date
- 2026-07-17
AI Technical Summary
In the construction of LNG-powered roll-on/roll-off ships, the LNG tanks are heavy and have a center of gravity that is off-center at the stern, making it impossible to lift them during the half-ship stage. This affects the integrity and safety of the half-ship, restricts the utilization efficiency of the dock, and prolongs the construction cycle.
Guided by the floating state balance when half of the ship is floating, the combination of half-ship sections is optimized through big data prediction and reverse iterative calculation. LNG tanks are introduced in advance and weight and center of gravity are balanced to form the optimal half-ship range.
This approach maximizes the integrity of the half-ship, improves safety and construction efficiency, reduces high-altitude operations, optimizes resource allocation, shortens the construction cycle, and lowers costs.
Smart Images

Figure CN122402733A_ABST