Sea ice-sea structure interaction discrete element high-performance simulation system

A technology of marine structure and simulation system, applied in special data processing applications, instruments, electrical digital data processing, etc. The effect of efficiency

Inactive Publication Date: 2015-09-30
DALIAN UNIV OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In numerical analysis, the finite element method is often used to calculate the interaction between sea ice and ocean structure. This method can handle relatively complex mechanical models, but it cannot reasonably simulate the dynamic failure characteristics of sea ice.
However, due to the constraints of computer hardware, it is difficult to implement large-scale discrete element models with CPU parallel computing.

Method used

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  • Sea ice-sea structure interaction discrete element high-performance simulation system
  • Sea ice-sea structure interaction discrete element high-performance simulation system
  • Sea ice-sea structure interaction discrete element high-performance simulation system

Examples

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Embodiment Construction

[0060] Taking the interaction of flat ice and sea ice with a single upright leg structure as an example, first open the preprocessing module (Preprocess) to set parameters, click Sea Ice to select level ice (Level), the length and width of sea ice are 10m×10m, The ice thickness is 0.2m, the number of ice layers is 1, the boundary velocity is set to 0.2m / s in the boundary condition (Boundary Condition), the stiffness ratio of the boundary to the particle is 1, the compressive strength is set to 2.4MPa in the Strength (Strength) setting, and the bending The strength is 1.5MPa, and the density of sea ice and sea ice is 920Kg / m 3 and 1035Kg / m 3 , the water depth is 3m, the position of the right edge of the ice surface is (-1,0), and the water velocity is 0.2m / s. Then click Structure to select Cylinder. The diameter of the leg is 0.75m and the height is 6m. Click the number of legs and position option (Multi_leg Distribution) to select 1 leg, and set the center of the bottom surfa...

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Abstract

The invention belongs to the technical field of computer application, and discloses a sea ice-sea structure interaction discrete element high-performance simulation system. By the adoption of three steps, the sea ice-sea structure interaction discrete element high-performance simulation system simulates sea ice and sea platform structure action, and the simulation includes the steps of model establishment, numerical value computation and result display. A user can directly set sea ice and sea structure parameters at a computer terminal in an interaction mode, and ice loads, vibration response and other mechanical properties of the structure and a visual three-dimensional result animation of the structure are accurately and efficiently obtained. In this way, based on a GPU discrete element numerical value, the sea ice-sea structure interaction discrete element high-performance simulation system has actual guidance meaning for structural design and fatigue analysis of an ice zone sea platform. The system is suitable for multiple research fields, involving sea ice and sea structure interaction, of environment, weather, hydrology, industry and scientific research, an interface is user-friendly, the design is standard, and good user experience is achieved.

Description

technical field [0001] The invention belongs to the field of computer application technology, and relates to a numerical simulation method for sea ice-ocean structure interaction, in particular to large-scale discreteness of the coupling effect of sea ice and ocean structure realized by a parallel high-performance numerical algorithm based on GPU in a numerical simulation system metacomputing method. By constructing different types of ice, such as flat ice, crushed ice, ice ridges and accumulated ice, the efficient and accurate numerical analysis of the ice load and structural vibration response of the jacket platform, jack-up platform and floating offshore platform structure is carried out. The structural design and fatigue analysis of offshore platforms in ice regions provide a reference. Background technique [0002] In the process of oil and gas development in ice areas, sea ice, as the main environmental load, has an important impact on the safety of engineering struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 季顺迎狄少丞王宇新龙雪
Owner DALIAN UNIV OF TECH
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