Paper on TopTier model tests and simulations on parametric roll of large container vessels
Date
Jan 9 2026
Reading time
1minute
A newly published paper from the TopTier Joint Industry Project sheds light on predicting dangerous roll motions in large container vessels.
The TopTier project, running from late 2021 to early 2025, united 40 industry participants to improve cargo securing safety on container ships. Among its many focus areas, parametric rolling—a critical phenomenon that can lead to severe cargo loss—was studied in depth.
The paper presents findings from extensive seakeeping model tests on two container vessels with capacities of 10,000 and 15,000 TEU. Researchers conducted 190 tests in regular waves and 42 in irregular seas, primarily in stern and bow quartering conditions. Both synchronous and parametric roll were analyzed near the boundary of in- and off-design motions.
To complement these experiments, advanced computational tools were benchmarked against the test results to assess their ability to predict wave conditions that trigger off-design roll motions. The study highlights both the strengths and limitations of current prediction methods, offering valuable guidance for safer operations and future regulations.
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