A high-pressure water jet assisted ice breaking method for a separate underwater vehicle

By receiving echo signals from the ice-water interface to generate two-dimensional images and three-dimensional terrain elevation maps, and combining inverse scattering tomography and ant colony algorithms, the ice-breaking path is optimized, solving the problem of insufficient information acquisition of the ice layer in existing technologies, and achieving efficient and stable ice-breaking results.

CN122108141APending Publication Date: 2026-05-29HARBIN ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN ENG UNIV
Filing Date
2026-03-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing ice-breaking technologies struggle to accurately determine the internal density, defect distribution, and effective mechanical strength of ice layers. Path planning lacks a basis, and improper spraying strategies lead to low ice-breaking efficiency, high equipment energy consumption, and unstable selection of work points, all of which affect ice-breaking quality.

Method used

By receiving echo signals from the ice-water interface, two-dimensional images and three-dimensional terrain elevation maps are generated. Combining inverse scattering tomography and ant colony algorithms, a heat map of ice vulnerability index and a dynamic pheromone concentration field are constructed to optimize the ice-breaking path. A cutting decomposition mechanism and B-spline curve fitting are introduced to achieve precise path planning and spraying strategies.

Benefits of technology

Accurately invert the internal structure of the ice layer, optimize the ice-breaking path, reduce resistance and energy consumption, and improve ice-breaking efficiency and operational stability.

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Abstract

The present application relates to the field of polar icebreaking, and particularly relates to a high-pressure water jet assisted icebreaking method of a separated underwater vehicle, the method comprising: based on the echo signals returned from the ice-water interface received by the mother ship, carrying out digital processing to generate a two-dimensional image and a preliminary topographic elevation map, and outputting the three-dimensional coordinates of the optimal window center position, obtaining an acoustic data set containing all acoustic signals, taking the inverse scattering tomography algorithm as a framework, constructing an inversion engine, introducing a cutting decomposition mechanism, embedding an ant colony algorithm, constructing a dynamic pheromone concentration field and a minimum resistance cost propagation field, generating a preliminary icebreaking path, and carrying out secondary screening on the icebreaking path. Through the introduced cutting decomposition mechanism, the operation area is divided into different difficulty sub-blocks according to the ice layer density and effective mechanical strength, and the dynamic pheromone concentration field and the minimum resistance cost propagation field constructed by the ant colony algorithm, adaptive path planning based on the ice layer vulnerability and the terrain resistance is realized.
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