Mathematical Interpretation of Open-Pit Dump Trucks Diesel Engine Durability Kairatbek Yesbossynov, Gennаdy Buyаlich, Sаpаr Каbikеnоv, Nurbolat Sembayev and Medet Jailaubekov E3S Web Conf., 174 (2020) 03004 Published online: 18 June 2020 DOI: 10.1051/e3sconf/202017403004