Analysis of stress-strain state of bogie frame of PE2U and PE2M industrial traction unitSherzamin Abdurasulov, Nuriddin Zayniddinov, Abdulaziz Yusufov and Shuhrat JamilovE3S Web of Conf., 401 (2023) 04022DOI: https://doi.org/10.1051/e3sconf/202340104022