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Artificial Intelligence Simulation System

 
Based on the finite element simulation technology, the software system for large deformation simulation of thermal, mechanical, elastic-plastic deformation body and elastic tools is used, especially for the simulation of complex section profile rolling process, including normal full model and simplified model that can be used for today's machine learning.

number

technology

explain

1

Engineering data that can be simulated

(1)Deformation in width direction, height direction and length direction of macro deformation during profile rolling production;
(2)The rolling force and energy demand during profile rolling includes rolling force, rolling torque, energy demand, etc;
(3)The deformation field of deformation at each position at any time in the rolling process (relative wide deformation, relative length deformation, relative high deformation);
(4)Strain, stress, temperature, strain rate, dynamic recrystallization, static recrystallization, grain growth, grain size and mechanical properties of products in each region.
 


2

Model validation

The practical application of the simulation has been comprehensively verified in the field, including the deformation and force energy at the macro level, and the verification based on the measured data of the deformation field when it is completely consistent with the actual section steel rolling process. For the measurement of deformation field in the process of large deformation hot rolling of section steel, the mesh is milled on each surface of complex shape steel with milling cutter, and the steel is cut off on the surface, the mesh is milled, and then welded together for rolling. At present, this technology has been transmitted to all section steel production plants in the world through several major international technology providers, creating a world precedent for the application of large deformation section steel hot rolling process simulation technology in factories! This project is a national project in Germany. The German investment is equivalent to millions of dollars today. Therefore, the applicant published his first book. The applicant's name has been posted on the website of his German school for 8 years!
 

 

3

Model introduction

(1)This is an artificial intelligence system of finite element simulation
(2)In the rolling process, the rolled piece is regarded as elastic-plastic and the roll as elastic
(3)This is a thermodynamic model, which calculates both thermal quantities such as temperature and mechanical quantities
(4)The mechanical properties of materials, including the rheological stress input by subroutine with formula, and other mechanical quantities, such as elastic modulus and Poisson's ratio, are input in the way of changing with temperature; The thermal properties of materials are also input in a similar way
(5)The boundary condition is mainly the friction coefficient between the rolled piece and the roll in the rolling process
 
 

4

Simplified model and machine learning

(1)From today's technical point of view, machine learning through simplified models is the biggest feature of this set of models!
(2)Using the simplified model, the calculation time required is only five thousandths of that of the complete model!
(3)The simplified model needs to assume a simplification coefficient - elongation; If the assumed elongation is completely correct, the simulated deformation field and temperature field are completely consistent with the complete model
(4)After rolling, the elongation can be calculated according to the length of the rolled piece before and after rolling, that is, it can be measured, which can form machine learning
(5)Machine learning can optimize the model based on online data, making the model extremely accurate!
 

5

Technical approval

 

(1)It pioneered the application of this technology in complex section thermodynamic simulation in factories all over the world!
(2)Published his first book. The name has been posted in  university website for eight years!
(3)Application of technology in companies and research institutions in various countries: the largest technology companies in Germany, the United States and Italy have applied this technology; And invited to study the past entry.

The above table shows the main products produced by the main technology.
 

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