Open AccessResearch and Development of Railway Alignment Design System Using FreeCAD Software
Author(s) -
Huansong Wang,
Wenlong Lu,
R Shi,
Shengli Yu,
Fadong Wu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/719/3/032009
Subject(s) - intersection (aeronautics) , point (geometry) , software , interface (matter) , section (typography) , baseline (sea) , computer science , pile , elevation (ballistics) , development (topology) , coordinate system , engineering drawing , engineering , structural engineering , geometry , transport engineering , operating system , geology , algorithm , mathematics , maximum bubble pressure method , mathematical analysis , oceanography , bubble , artificial intelligence
This paper explores the functional modules of railway alignment design in the open source FreeCAD software, and makes a foundation development for other railway majors in the open source software. The interactive interface is designed by pyside. The geometric elements of the railway alignment, the coordinates of the main point (ZH, HY, YH, HZ, QZ) and the elevation of end or start point in vertical curve are calculated according to the intersection data, so as to realize the design of the horizontal and vertical section for the alignment. OCC interface is accessed through part module to realize the synthesis of railway baseline. Comparing the baseline generated by FreeCAD with the pile-by-pile coordinates of a project bid section, the coordinate error is less than millimeters, which can well meet the needs of railway construction.