Anisotropic soft tissue cutting simulation method and apparatus
By using the method of combining matter point method with background Euler grid in shear simulation, orthogonal anisotropy calculation and particle health value evolution are introduced, the problem of lack of realism in the anisotropic software simulation in the prior art is solved, and a shear simulation with higher realism is achieved.
WO2025055151A1 Publication Date: 2025-03-20SHENZHEN INST OF ADVANCED TECH
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Patent Information
- Application Number
- PCT/CN2023/136592
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-14
- Filing Date
- 2023-12-05
- Publication Date
- 2025-03-20
AI Technical Summary
Technical Problem
The existing shear simulation methods lack reality and cannot effectively simulate the elasticity and fracture resistance of anisotropic software in different directions.
Method used
The matter point method is used combined with the background Euler grid, orthogonal anisotropy is introduced to calculate the elastic energy of the target software, and the shear fracture process is simulated through the evolution of particle health value.
Benefits of technology
The deformation simulation of anisotropic software is realized, and the simulation results are closer to reality and have a higher sense of reality.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to an anisotropic soft tissue cutting simulation method and apparatus. The method comprises: constructing a cutting simulation environment of a target soft tissue by combining particles and a background Eulerian grid; the background Eulerian grid acquiring physical quantity information on the basis of performing simulated shearing on the target soft tissue; calculating the elastic energy of the particles on grid nodes of the background Eulerian grid on the basis of physical quantities; and when the elastic energy exceeds the elastic energy limit that the target soft tissue can withstand and the target soft tissue undergoes shear fracture, the particles updating their own positions on the basis of the physical quantities. According to the present application, to realize deformation simulation of an anisotropic soft tissue, anisotropic elastic energy terms are introduced into an MPM to realize shear fracture simulation of the anisotropic target soft tissue, making the shear simulation of the target soft tissue more realistic.
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