Влияние дорожных условий эксплуатации транспортних машин на нормирование ресурса

Abstract

Рассмотрены методы нормирования ресурса транспортных машин. Разработана модель аналитического определения корректировочного коэффициента для изменения про бега до капитального ремонта машин с учетом дорожных условий эксплуатации. На при мере автомобиля ЗИЛ-431510 проведен расчет изменения ресурса по пробегу для различных скоростей и степени неровности дорожного полотна.

The legislation of Ukraine does not adjust the mileage between technical services and to determine the total resource of the car. The state of the road greatly affects the reliability and durability of the machine. The quality of the road surface is estimated by the degree of evenness, which is obtained from the measurement of movement of the body and wheels. Vertical oscillations of the body of the car leads to a change in the power balance on the wheels of the car. Increased losses in the suspension of the car affect the load of the internal combustion engine. The speed of wear of the engine cylinders depends on the engine speed and the average of indicator pressure. The article gives an analytical dependence of the relationship between the flatness of the road and the engine life. The adjustment of the mileage between maintenance and the vehicle resource is proposed to be carried out through a correction factor. In this paper, a formula is derived for calculating this correction factor. The coefficient was calculated using the example of ZIL-431510. The graphs of the vehicle's resource change are obtained from the road roughness and speed car. The received mathematical model is proposed to be applied at automobile transport enterprises, in order to prolong the level of reliability and durability of the machines due to timely maintenance in difficult operating conditions.