Bài viết này trình bày quá trình xây dựng chương trình tính toán và thiết lập đường cong hợp lực đơn vị cho các đoàn tàu với các loại đầu máy, toa xe sử dụng trong ngành đường sắt Việt Nam, với tư cách là một mô đun trong chương trình tổng hợp đã nêu. | Transport and Communications Science Journal Vol 71 Issue 8 10 2020 907-923 Transport and Communications Science Journal DEVELOPING A PROGRAM TO CALCULATE THE UNIT RESULTANT FORCE OF TRAINS ON VIETNAM RAILWAYS Do Duc Tuan Nguyen Duc Toan University of Transport and Communications No 3 Cau Giay Street Hanoi Vietnam ARTICLE INFO TYPE Research Article Received 8 9 2020 Revised 4 10 2020 Accepted 5 10 2020 Published online 28 10 2020 https Corresponding author Email ddtuan@ Tel 0913905814 Abstract The train traction calculation tasks are to be determining the train mass testing the train mass determining the running time and establishing the train operation chart in sections and so on. To determine the running time and to establish the train operation chart in sections first of all it is necessary to determine and establish the resultant force and the unit resultant force of trains in operation. The trains operating on railways are quite diverse because many different types of locomotives are used for different masses of trains. The determination of the running time and the train operation chart including the unit resultant force must be done for each specific train resulting in a huge amount of computation that takes a long time when calculating by the traditional method. Therefore it is necessary to develop a general calculation program to solve the problem quickly and accurately. The general program includes some basic modules corresponding to the above tasks. The article presents the process of developing a program to calculate and to establish the unit resultant force curves for trains with locomotives and wagons Railways used in Vietnam as a module in the mentioned general program. Keywords calculation program train traction unit resultant force operation chart. 2020 University of Transport and Communications 907 Tạp chí Khoa học Giao thông vận tải Tập 71 Số 8 10 2020 907-923 Tạp chí Khoa học Giao thông vận tải XÂY DỰNG .
