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
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technology
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explain
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1
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Engineering data that can be simulated
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(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.
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2
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Model validation
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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!
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3
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Model introduction
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(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
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4
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Simplified model and machine learning
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(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!
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5
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Technical approval
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(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.
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The above table
shows the main products produced by the main technology.
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