AI 中文总结
本研究提出WCD黑箱模型构建DTM,开发EI方法高效预测北极航线中大量任意形状浮冰的水波场,结合动态规划优化航线,可使船舶平均波幅降至入射波幅约一半,计算效率极高。
AI 中文摘要
本研究开发了一种增强交互(EI)方法,用于高效预测北极航线规划中大量浮冰间的水波场。提出了一种新型黑箱模型,称为波分量检测(WCD)方法,用于在交互理论框架内构建衍射转移矩阵(DTM)。传统上,对于具有任意复杂几何形状的三维浮冰,DTM在数学上难以处理,而现在可通过这种易于实现且普遍适用的方法确定。不失一般性,选取四种浮冰形状作为示例模型,以展示EI方法的能力。为EI方法的实际实施推荐了操作规则。在包含不同尺寸多个浮冰的场景中确定了EI方法的误差范围。在涉及超大型浮冰群的案例中,证明了EI方法的超高效率:在配备2017款CPU的普通个人计算机上,计算1800个浮冰(基于1440000个边界元)的波场中160000个位置的波幅耗时不到1.5小时。基于EI方法预测的波场,用户可利用浮冰的挡浪效应优化航线。作为示例,采用动态规划策略在1561个混合形状的浮冰间推荐优化后的导航航线,船舶遭遇的平均波幅可降至入射波幅的约一半。
英文摘要
This study develops an enhanced interaction (EI) method for efficient prediction of the water-wave field among a large group of ice floes in Arctic route planning. A novel black-box model, termed the wave component detection (WCD) method, is proposed for constructing the diffraction transfer matrix (DTM) within the framework of interaction theory. The DTM, which is conventionally mathematically intractable for three-dimensional ice floes with arbitrarily complex geometry, can now be determined using this readily implementable and universally applicable approach. Without loss of generality, four ice-floe shapes are taken as example models to demonstrate the capability of the EI method. Operation rules are recommended for the practical implementation of the EI method. The error range of the EI method is identified in scenarios with multiple ice floes of different sizes and distances.The super-high efficiency of the EI method is demonstrated in cases involving an ultra-large group of ice floes. It takes less than 1.5 hours to calculate wave amplitudes at 160,000 locations in the wave field of 1,800 ice floes (based on 1,440,000 boundary elements) on an ordinary personal computer with a 2017-released CPU. Based on the wave field predicted by the EI method, users can take advantage of the wave-sheltering effect of the ice floes to optimize routes. For demonstration, the dynamic programming strategy is used to recommend optimized navigation routes among 1561 ice floes of mixed shapes. The average wave amplitude the ship encounters can be reduced to about half of the incident wave amplitude.
Comments31 pages, 37 figures; submitted to Cold Regions Science and Technology on March 22, 2025; received first revision request on March 18, 2026; submitted first revision on April 7, 2026