Mathematical Model for the Emission Infrared Tomography of the Temperature Field in an Isotropic Layer

2018 ◽  
Vol 229 (3) ◽  
pp. 320-334
Author(s):  
V. F. Chekurin ◽  
Yu. V. Boichuk
Keyword(s):  
Mathematical Model ◽  
Temperature Field ◽  
Isotropic Layer ◽  
Infrared Tomography

Experiment Research on the Temperature Field and Thermal Error Distribution of NC Grinding Machine

2009 ◽  
Vol 76-78 ◽  
pp. 61-66
Author(s):  
Ya Dong Gong ◽  
Yan Guang Bai ◽  
Yue Ming Liu ◽  
Jian Qiu
Keyword(s):  
Mathematical Model ◽  
Temperature Field ◽  
Infrared Camera ◽  
Thermal Error ◽  
Error Distribution ◽  
Measurement Technology ◽  
Actual Error ◽  
Grinding Machine ◽  
The Mathematical Model ◽  
Nc Grinding

With the help of the infrared camera temperature measurement technology, the systemic theoretical analysis and experimental research for temperature field and thermal error distribution in NC grinding machine is provided. Two different situations for temperature field and thermal error distribution are respectively measured while the free and loaded grinding by the new measurement method. The mathematical model of thermal error is built, and it shows that the actual error and the forecasted error from thermal error mathematical model have good comparability.

Microstructures in Solidification Simulation of Electron Beam Scanning with MC in Molten Pool

2014 ◽  
Vol 898 ◽  
pp. 168-172 ◽  
Author(s):  
Rong Wang ◽  
Yi Liu ◽  
De Qiang Wei
Keyword(s):  
Mathematical Model ◽  
Temperature Field ◽  
Electron Beam ◽  
Grain Growth ◽  
Molten Pool ◽  
Growth Process ◽  
Solidification Process ◽  
Optical Microscope ◽  
Physical Parameters ◽  
Beam Scanning

The solidification microstructure of electron beam scanning is important to product performance. The solidification process of molten pool temperature field and 2D simulation mathematical model of grain growth was established based on heat transfer and the physics of growth process of crystal grains. The heat distribution, thermal physical parameters and influence of thermal radiation on the temperature field was considered during the analysis process. The distribution of temperature field was solved by COMSOL. The process of solidification was simulated by using Monte Carlo method. Using optical microscope to observe the solidified microstructure of bath. The simulation results show that the mathematical model can reasonably describe the grain growth process, the temperature field and the simulation of microstructure morphology.

Mathematical model of the temperature field around a borehole with radioactive wastes and its experimental verification in field conditions

1985 ◽  
Vol 59 (6) ◽  
pp. 994-998
Author(s):  
E. G. Drozhko ◽  
V. I. Karpov ◽  
A. S. Stepanov ◽  
I. I. Kryukov ◽  
V. F. Savel'ev ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Temperature Field ◽  
Experimental Verification ◽  
Radioactive Wastes ◽  
Field Conditions

The Numerical Simulation of Directional Solidification Process Temperature Field for Large-Scale Frustum of a Cone Ingot

2011 ◽  
Vol 189-193 ◽  
pp. 1476-1481
Author(s):  
Kun Liu ◽  
Zhe Wang ◽  
Ren Zhi Han ◽  
Zi Ping Ren
Keyword(s):  
Numerical Simulation ◽  
Mathematical Model ◽  
Temperature Field ◽  
Directional Solidification ◽  
Large Scale ◽  
Solidification Process ◽  
Directional Solidification Process ◽  
Ingot Quality ◽  
Fluent Software ◽  
The Mathematical Model

By using Fluent software, the mathematical model of temperature field is established on directional solidification process for large-scale frustum of a cone ingot, and the result is analyzed by Origin software, Tecplot. The influences of different width/thickness ratio to directional solidification process of cone ingot are discussed in order to provide basis for design optimization and ingot quality improvement.

A Real-Time Mathematical Model for the Two-Dimensional Temperature Field of Petroleum Coke Calcination in Vertical Shaft Calciner

JOM ◽  
2016 ◽  
Vol 68 (8) ◽  
pp. 2149-2159 ◽  
Author(s):  
Jin Xiao ◽  
Jindi Huang ◽  
Qifan Zhong ◽  
Fachuang Li ◽  
Hongliang Zhang ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Temperature Field ◽  
Real Time ◽  
Petroleum Coke ◽  
Vertical Shaft ◽  
Two Dimensional

Development and Application of Dynamic Secondary Cooling Control Model for Beam Blank Casting Based on FEM

2010 ◽  
Vol 148-149 ◽  
pp. 569-574
Author(s):  
Yun He Chang ◽  
Jia Quan Zhang
Keyword(s):  
Mathematical Model ◽  
Temperature Field ◽  
Control System ◽  
Casting Speed ◽  
Target Surface ◽  
Control Model ◽  
Secondary Cooling ◽  
Thermal Transfer ◽  
Cooling Control ◽  
Set Up

A mathematical model for thermal transfer and solidification of beam blank casting has been established, which is solved by FEM. A dynamic secondary cooling control model is developed accordingly, and it can meet the need of online calculation for the entire temperature field of the beam blank casting, in which the amount of water for secondary cooling is set up and optimized by using effective casting speed and target surface temperature strategy. The dynamic secondary cooling control system is programmed by using Visual C++ 6.0 with friendly operation interface, which can be adopted not only for the online cooling control of beam blank casting but possibly for lab calculation of water table as well.

Simulation and Calculation to Segregation of High Nitrogen Steels Solidification Process Based on PROCAST Software

2011 ◽  
Vol 217-218 ◽  
pp. 1185-1190 ◽  
Author(s):  
Wan Ming Li ◽  
Zhou Hua Jiang ◽  
Hua Bing Li
Keyword(s):  
Mathematical Model ◽  
Temperature Field ◽  
Stainless Steels ◽  
Pressure Field ◽  
Solidification Process ◽  
High Nitrogen ◽  
Dynamic Variation ◽  
Nitrogen Steels ◽  
Zone Segregation

Segregation and liberation occur easily in high nitrogen stainless steels, which can result in the formation of pores and the discarding of the steels. So it is very important to investigate the segregation and liberation theory during the solidification process of high nitrogen stainless steels. In the manuscript, the pouring and solidification progress of high nitrogen steels ingots were simulated through Pro Engineer and PROCAST software. The dynamic variation of temperature field and pressure field were obtained. With the results of PROCAST, the macrosegregation of 20kg weight ingot and 1.7 tons weight ingot were predicted using mathematical model of zone segregation. The predicted results show that 20kg weight ingot has no obvious macrosegregation and 1.7 tons weight ingot has obvious macrosegregation, which is consistent with measuring results. It shows that the accuracy of simulation and calculation to segregation of high nitrogen steels solidification process based on PROCAST software is high.

An Application for Analysis of Temperature during Cold Rolling

2013 ◽  
Vol 199 ◽  
pp. 131-136
Author(s):  
Olena Yevtushenko
Keyword(s):  
Mathematical Model ◽  
Plastic Deformation ◽  
Temperature Field ◽  
Numerical Analysis ◽  
Cold Rolling ◽  
Partition Ratio ◽  
Transient Temperature ◽  
Heat Partition ◽  
Transient Temperature Field ◽  
The Mathematical Model

The problem of software creation for the analysis of transient temperature field in cold rolling of metals is under consideration. Firstly, the mathematical model of the process of heating the strip and rolls at cold rolling it is proposed. This model assumes that the generation of heat during the rolling takes place due to friction on the contact surface of the rolls and the strip as well as plastic deformation of the strip material. Next, some fragments of created application for the purpose of an overall numerical analysis of heat partition ratio between the rolls and a strip as well as the temperature in any point of these elements are presented.

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