Open AccessResearch on Heat Conduction Model of Special Equipment Based on Difference Equation
Author(s) -
Jintao Tan,
Jie Xia,
Ming Gao,
Li Li
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1670/1/012035
Subject(s) - discretization , computer science , clothing , thermal conduction , heat equation , mathematics , mathematical optimization , algorithm , law , mathematical analysis , political science , composite material , materials science
Special equipment plays an important role in the life safety of special operators. With the development of economy and society, the performance requirements of special equipment are higher and higher. In this paper, the fire-proof clothing in special equipment is taken as an example to study the internal temperature change of the fire-proof clothing in high temperature environment and improve the design of the fire-proof clothing. Through Newton’s law of cooling and Fourier’s law, combined with the relevant physical parameters, we establish the heat conduction model of the fire suit, discretize the differential equation in the model, use the chasing and driving method to solve the tridiagonal matrix after discretization, and transform the unknown parameters (heat extraction coefficient) in the model into a two-parameter optimization problem, combining with the classical optimization algorithm—The genetic algorithm is solved. Experiments show that our model can better solve this kind of problems, and the fitting accuracy is increased by 10%. Through the fitting image of the experimental results, we can see the improvement of the accuracy directly. Through the improvement, our model can improve the fitting accuracy, which is of great significance for the design and research of special equipment Fire clothing, and also has certain reference value for solving similar problems.