Open AccessStructural parameters of new rail transit system optimization theory research
Author(s) -
Zhifei Wang,
LiWu Fan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/892/1/012042
Subject(s) - maglev , aerodynamics , drag , pipeline (software) , engineering , structural engineering , range (aeronautics) , aerodynamic drag , simulation , mechanical engineering , aerospace engineering , electrical engineering
In response to the defects of maglev system structural parameter design method, the paper put forward an optimization design based on orthogonal test and computational fluid dynamics, by combining orthogonal theory with fluid mechanics and adopting multi-factor orthogonal test method, the influence trend of tunnel cross section, running speed, pipeline pressure, and on train aerodynamic resistance is studied by taking train aerodynamic resistance as evaluation index, and the sequence of various factors and the influence of different factors on air drag are determined by range and variance analysis, and the optimal parameters are confirmed. The results show that the blocking ratio has the greatest influence on the aerodynamic drag, while the pipeline pressure has the least influence, and the blocking ratio and running speed have the most significant influence on the aerodynamic drag of the train, while the pipeline pressure is not significant. The optimal solutions are 2 for Tunnel cross section, 600km/h for the running speed and 700Pa for the pipeline pressure. The results of this paper can provide technological interest for the future transportation of the maglev system.