Forecasting and Evaluation of Gas Pipelines Geometric Forms Breach Hazard

[摘要] Main gas pipelines during operation are under the influence of the permanent pressure drops which leads to their lengthening and as a result, to instability of their position in space. In dynamic systems that have feedback, phenomena, preceding emergencies, should be observed. The article discusses the forced vibrations of the gas pipeline cylindrical surface under the influence of dynamic loads caused by pressure surges, and the process of its geometric shape deformation. Frequency of vibrations, arising in the pipeline at the stage preceding its bending, is being determined. Identification of this frequency can be the basis for the development of a method of monitoring the technical condition of the gas pipeline, and forecasting possible emergency situations allows planning and carrying out in due time reconstruction works on sections of gas pipeline with a possible deviation from the design position.

[发布机构] Industrial University of Tyumen, 38 Volodarskogo st., Tyumen; 625000, Russia^1

[效力级别] 运输工程

[关键词] Cylindrical surface;Emergency situation;Forced vibration;Geometric form;Geometric shape;Pressure surges;Technical conditions