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Modification of technique of structural design of pipeline system taking into account experimental data of a straingage testing has been completed. The various ranges of frequency response analysis of the dynamically loaded hydrogas system’s collapsible pipelines constructions with application of a finite element method nonlinear contact problem has been done. Frequency responses of collapsible pipelines constructions hydraulic system pressure line of a modern airplane before and after modernization on the presented method are presented; decrease of structures dynamic stresses in the operating frequency range. This work continues research of dependence of frequencies of natural vibration and tensely deformed condition ofpipeline systems from features of its detail of construction.

vestnik samarskogo gosudarstvennogo tehničeskogo universiteta. seriâ: fiziko-matematičeskie nauki/vestnik samarskogo gosudarstvennogo tehničeskogo universiteta. seriâ fiziko-matematičeskie nauki

Математическое моделирование напряженно-деформированного состояния размеростабильных композитных элементов конструкций оптических телескопов с помощью метода конечных элементов