Dynamic response of a steel pipeline with bolted connections to a mining shock obtained with the submodeling technique

W artykule przedstawiona została analiza odpowiedzi dynamicznej naziemnego gazociągu na rzeczywisty wstrząs górniczy. W obliczeniach zastosowano technikę submodelingu. W pierwszym etapie przeprowadzono obliczenia uproszczonego, belkowego modelu całego gazociągu (model globalny). W drugim etapie zastosowano model 3D fragmentu konstrukcji, obejmujący odcinek gazociągu nad podporą (submodel). Analiza z zastosowaniem techniki submodelingu pozwoliła na dokładne rozeznanie pracy złącza gazociągu oraz na określenie rozkładu naprężeń w kołnierzu i śrubach złącza.

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