Fan Zhang , Qikai Zhang , Dong Peng , Yudi Wang , Yihe Wang , Qi Qin , Shihong Hu , Gang Wu
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引用次数: 0
Abstract
Recent field observations from the Xuelong icebreaker indicate that line contact induced bending failures of ice sheets are prevalent during consecutive ice breaking processes. However, the corresponding ice force and breaking length have rarely been studied. Against this backdrop, this study proposes a model with seven independent input parameters to characterize the loading scenario without assuming ice sheet geometric symmetry. The normalized governing equation based on the theory of thin plates on elastic foundations is solved by the finite element (FE) method, and the results are further utilized to train a XGBoost model. The established line contact induced bending failure model is implemented into a non-smooth discrete element method (DEM) framework for ship-ice interaction simulations, and the numerical result for ice resistance of the Xuelong 2 icebreaker in level ice is validated against model test data. This study facilitates a more accurate real-time description of ice-sloping structure interactions.
期刊介绍:
International Journal of Naval Architecture and Ocean Engineering provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; underwater acoustics; ocean remote sensing; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; subsea engineering; and specialized watercraft engineering.