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Numerical Simulation Research Method of Irregular Particles Based on Microwave Induced Damage in Particle Flow

A numerical simulation and particle flow technology, applied in CAD numerical modeling, complex mathematical operations, special data processing applications, etc., can solve the problems of less research on thermal-mechanical coupling damage and a small number of irregular particle numerical simulation studies

Active Publication Date: 2020-07-24
贵州省洋霖科技服务有限公司
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Problems solved by technology

[0003] In the current research process, the simulation of discontinuous materials using the discrete element method is mostly limited to the simulation of mechanical properties, while there are few studies on the damage caused by thermal-mechanical coupling, and the research on the numerical simulation of irregular particles induced by microwave damage is more important. few

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  • Numerical Simulation Research Method of Irregular Particles Based on Microwave Induced Damage in Particle Flow
  • Numerical Simulation Research Method of Irregular Particles Based on Microwave Induced Damage in Particle Flow
  • Numerical Simulation Research Method of Irregular Particles Based on Microwave Induced Damage in Particle Flow

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Embodiment Construction

[0032] like Figure 1 to Figure 6 As shown, a numerical simulation research method for irregular particles based on particle flow microwave-induced damage of the present invention comprises the following steps:

[0033] Step S1. Establish a wall with a specified size, determine the numerical model, set the number of particles to be simulated, randomly distribute spherical particles according to the required particle gradation, select a particle at random, and follow the equation

[0034] (1): X=X bp +0.0003*k; Y=Y bp +0.0003*k to generate other particles around it;

[0035] Step S2, after the particle at the center position is determined, according to the equation (2): (X / a) 2n +(Y / b) 2n = 1 algorithm generates blocks;

[0036] Step S3, when the generated particles are inside the elliptical boundary, the particle cluster is regarded as a generated clump, and the number of particles required to generate a single clump is determined according to the simulation requirements....

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Abstract

The invention provides a particle flow based irregular particle numerical simulation research method for microwave induced damage. According to a basic algorithm, a thermodynamic coupling numerical model with a specified size is established and endowed with the parallel bonding performance; round particles are generated by utilizing a written FISH language algorithm, and then aggregate shape based irregular clump blocks are formed; a corresponding relationship between macroscopic thermodynamic parameters and microscopic thermodynamic parameters is established by adopting a ''cut-and-try'' method; different aggregates are endowed with different microscopic thermodynamic parameters; and the microwave induced damage in different discontinuous scales is subjected to numerical simulation research. According to the research method provided by the invention, a novel research approach is provided for performing irregular particle numerical simulation of the microwave induced damage by adopting a discrete element method.

Description

technical field [0001] The invention relates to a numerical simulation method based on a discrete element method, in particular to a numerical simulation research method for microwave-induced damage to irregular particles. Background technique [0002] The discrete element method is developed based on the theory of discrete elements. It overcomes the macro-continuity assumption of the traditional continuum mechanical model by combining macroscopic substances and exhibiting macroscopic mechanical behavior through particles. It is suitable for simulating large deformation and cracking of rock masses, etc. non-linear behavior. Its basic theory is based on Newton's second law and force-displacement law. The position of particle-particle and particle-boundary is updated through the law of motion; the contact force of the contact part is updated through the force-displacement law to achieve the latest balance. [0003] In the current research process, the simulation of discontinu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F111/10G06F17/11
CPCG06F17/11G06F30/367G06F2111/10
Inventor 李新卫唐阳李辉
Owner 贵州省洋霖科技服务有限公司
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