Two series of model tests were performed to investigate the dynamic ice loads on two types of four-legged jacket platforms and the consequently structural responses.
In this paper, based on the state-of-art developments of dynamic ice load and ice structure interaction, the authors proposed two different approaches to determine the short-term dynamic ice cases for dynamic analysis of ice-resistant jacket platform in the Bohai Gulf, named as the failure probability-based approach and the expected loss-based approach.
Based on the tests data, the physical process of dynamic ice forces in crushing failure was probed, by analysis of mechanical behaviour of ice under compressive loading related to relative loading speed of ice-structure interaction.
This is used to determine the short-term dynamic ice case for dynamic analysis of the ice-resistant jacket platform.
To diminish dynamic amplification and avoid resonance, the eigenfrequency related to the lowest eigenmode of the wind turbine should not coalesce with excitation frequencies related to strong wind, wave and ice loading.
It presents detailed information on 188 ice loading events from both first-year and multi-year ice for different ice macrostructures including level ice, ridges, hummock ice and isolated floes.
The measuring system has provided fruitful information for the research of dynamic ice force.
The recent collapse of Wordie Ice Shelf, Prince Gustav Ice Shelf, Mueller Ice Shelf, Jones Ice Shelf, Larsen-A and Larsen-B Ice Shelf on the Antarctic Peninsula has raised awareness of how dynamic ice shelf systems are.
Comparisons with reference to ice thickness, temperature, and velocity, are made on: rubble formation, rubble surcharge height, rubble jamming, pressure ridge failure modes, dynamic effects, and measured and predicted ice loads.
