Abstract:
The primary specific resistance to the movement of freight wagons is a key
parameter for normalizing the time and energy consumption of trains. Although the "Rules of
Traction Calculations" calls for dividing wagons into six groups when calculating this resistance, in
practice (using the traditional method), appropria teregulations are developed based on the
separation of train wagons into two groups (4th and 8th lips). One of the main reasons for this is the
inability to account for the unique features of each wagon in a given train. To address this issue, a
program was developed for determining the necessary parameters of wagons for traction
calculations based on their identification numbers. This soft ware can be accessed through the
website https://trainlocomotive.netlife.app/. Using this program, a method for calculating the
primary specific resistance to the movement of freight wagons has been developed. Field sheets of
freight it trains moving through the Uzbekistan Temir Yullari railway station were analyzed. As a
result, it was discovered that nearly half of the freight train composition consists of empty wagons,
while the proportion of loaded gondola cars and tanks is 23%. The primary specific resistance to the
movement of wagons in such a mixed composition is calculated using both traditional and
developed methods.
