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Определение силы тяги локомотива с учетом неравномерности нагрузки колесно-моторных блоков

Определение силы тяги локомотива с учетом неравномерности нагрузки колесно-моторных блоков

Abstract

Purpose. The article describes the most common methods for determining the locomotive traction force. Solving the tasks of traction calculations involves determination of the forces influencing the train at every point of the way. When choosing a rational trajectory of the train motion and the development of operational regulations of train driving it is necessary to determine the actual value of the locomotive traction force. Considering various factors, power value of traction electric motor of locomotive may have significant differences. Advancement of the operational definition system of the locomotive traction force during the calculations by electrical parameters of traction electric motor with regard to uneven load of wheel-motor block is the purpose of the article. Methodology. The method of determining the traction force of locomotives and diesel locomotives with electric transmission, which is based on primary data acquisition of traction electric engines of direct current behavior, was proposed. Sensors and their integration into the electrical circuitry of the locomotive in order to get the data in digital form and for operational calculation of the each traction motor mode and the definition of locomotive traction force are presented. Findings. The experimental investigation of the system of locomotive traction force determination with the electric traction motor ED-105 was offered. A comparison of electrical and mechanical power of the electric motor was conducted. Originality. The system of locomotives power operational definition, which takes into account the variable electro-mechanical factors of wheel and motor blocks and increases the accuracy of the calculations, was proposed. Practical value. The system is a part of an onboard complex in definition of energy-efficient regimes for trains movement and provides the definition of accelerating and decelerating forces.

Цель. В статье рассмотрены наиболее распространенные способы определения силы тяги локомотива. Решение задач тяговых расчетов предусматривает определение сил, действующих на поезд в каждой точке пути. При выборе рациональных траекторий движения поезда и при разработке режимных карт ведения поезда необходимо определять фактическое значение силы тяги локомотива. С учетом различных факторов значения мощности ТЭД локомотива могут иметь значительные отличия. Целью является совершенствование системы оперативного определения силы тяги локомотива при тяговых расчетах по электрическим параметрам ТЭД за счет учета неравномерности нагрузки КМБ. Методика. Предложена методика определе-ния силы тяги электровозов и тепловозов с электрической передачей, в основу которой положено получение первичных данных о режиме работы тяговых электродвигателей постоянного тока. Приведены датчики и схема их включения в электрическую схему тепловоза для получения данных в цифровом виде и опера-тивного расчета режима работы каждого тягового электродвигателя, а также определения силы тяги локомотива. Результаты. Проведено экспериментальное исследование системы определения силы тяги на тяговом электродвигателе ЭД-105. Проведено сравнение электрической и механической мощностей электро-двигателя. Научная новизна. Предложена система оперативного определения силы тяги локомотивов, которая учитывает переменные электро-механические факторы колесно-моторных блоков и увеличивает точность расчетов. Практическая значимость. Система является составной частью бортового комплекса определения энергоэффективных режимов ведения поездов и обеспечивает определение ускоряющих и замедляющих сил.

Keywords

ТЯГОВЫЕ РАСЧЕТЫ, ТЯГОВЫЕ ЭЛЕКТРИЧЕСКИЕ МАШИНЫ, МОМЕНТ ВРАЩЕНИЯ, МАГНИТНЫЙ ПОТОК, ЭЛЕКТРИЧЕСКАЯ МОЩНОСТЬ, МЕХАНИЧЕСКАЯ МОЩНОСТЬ, СИЛА ТЯГИ, ЧАСТОТА ВРАЩЕНИЯ, ТЯГОВі РОЗРАХУНКИ, ТЯГОВі ЕЛЕКТРИЧНі МАШИНИ, МОМЕНТ ОБЕРТАННЯ, ЧАСТОТА ОБЕРТАННЯ, МАГНіТНИЙ ПОТіК, ЕЛЕКТРИЧНА ПОТУЖНіСТЬ, МЕХАНіЧНА ПОТУЖНіСТЬ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold