Simulation of oscillations of composite pipelines conveying pulsating fluid Kholidakhon Komilova, Zardila Shakhobiddinova, Davronbek Ismoilov and Astan Ismailov E3S Web Conf., 377 (2023) 02003 Published online: 03 April 2023 DOI: 10.1051/e3sconf/202337702003