Agitator motion coupling solving method based on ACMI and AMI

By combining ACMI and AMI, and utilizing the OpenFOAM platform and specific models, high-precision motion simulation of deep mixers in soft soil was achieved, solving the problems of mesh distortion and low computational efficiency, and providing a basis for mixing optimization.

CN122452123APending Publication Date: 2026-07-24BLUE OCEAN PRECISION NEW MATERIAL TECH (QINGDAO) CO LTD
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Patent Information

Application Number
CN202610531272.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-21
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies are unable to effectively simulate the complex motion process of deep mixers in soft soil, resulting in grid distortion, low computational efficiency, and insufficient accuracy, making it impossible to accurately predict the mixing effect.

Method used

A coupled solution method for the motion of a mixer based on ACMI and AMI is adopted. Using the OpenFOAM platform, combined with the Bingham-Papanastasiou model and the k-ω SST model, the complex motion simulation of the mixer is realized through the ACMI algorithm, and the AMI sliding mesh method is introduced to handle the rotational and translational motion of the mixing equipment.

Benefits of technology

It improves simulation accuracy and computational efficiency, accurately predicts stirring torque and power consumption, solves the grid distortion problem, and provides a basis for stirring optimization.

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Abstract

The invention discloses a stirring machine motion coupling solving method based on ACMI and AMI, and belongs to the technical field of stirring machine motion simulation. The method comprises the steps that according to an existing stirring equipment drawing, three-dimensional modeling software is used for conducting digital modeling on stirring equipment; the AMI algorithm is used for simulating the rotation motion of the local area of the stirring cutter head; simulation of long-distance translational motion of the stirring equipment is realized through an ACMI algorithm; generating computational grids: respectively generating a grid of a motion area and a grid of a static area; motion control: motion control of different cell Zone in the model is realized; initial conditions and boundary conditions of the model are set, and operation solution is performed to obtain spatial distribution and concentration (stirring uniformity) of the curing agent. And the ACMI slippage mechanism enables the grid nodes to only generate rigid body displacement in the movement without deformation. The grid quality is not reduced along with the increase of the drilling depth, so that the calculation stability of the whole process is ensured.
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