Simulation of oscillations of composite pipelines conveying pulsating fluid

Autor: Kholidakhon Komilova, Zardila Shakhobiddinova, Davronbek Ismoilov, Astan Ismailov
Rok vydání: 2023
Předmět:
Zdroj: E3S Web of Conferences. 377:02003
ISSN: 2267-1242
DOI: 10.1051/e3sconf/202337702003
Popis: The article considers the problem of vibrations of straight sections of the pipeline based on the theory of beams. A mathematical model of the dynamics of a straight viscoelastic pipe with a pulsating fluid is developed. The speed of a pulsating fluid is assumed to be harmonically fluctuating and has the following form: V(t) = υ0 (1 + μ1cosϖt). The mathematical model of the problem is simplified using the Bubnov-Galerkin approach to the solution of a set of common integro-differential equations with time as an independent variable. A numerical approach based on the removal of the singularity in the relaxation kernel of the integral operator is used to solve integro-differential equations. A numerical approach for the unknowns was used to get the system of algebraic equations. The Gauss technique is used to resolve a set of algebraic equations. The dynamics of fluid-transporting viscoelastic pipes have difficulties that can be solved computationally.
Databáze: OpenAIRE