Coupling vibration of composite pipe-in-pipe structure subjected to gas-liquid mixed transport by means of green's functions. Issue 8 (10th March 2023)

• Record Type: Journal Article
• Authors: Chang, X.P.; Fan, J.M.; Qu, C.J.; Li, Y.H.
• Is Part Of: Mechanics of advanced materials and structures. Volume 30:Issue 8(2023)
• Page Start: 1604
• Page End: 1623
• Publication Date: 2023-03-10
• Subjects: Green's functions -- Laplace transform -- mode exchange -- pipe-in-pipe structure -- fiber-reinforced composite -- elastic boundary conditions; Composite materials -- Mechanical properties -- Periodicals; Composite construction -- Periodicals; 620.118
• DOI: 10.1080/15376494.2022.2037794
• Languages: English
• ISSNs: 1537-6494

Abstract

Abstract: This paper focuses on the vibration characteristics of a composite pipe-in-pipe structure subjected to gas-liquid mixed transport. Through the Laplace transform, Green's functions for the forced vibration of the pipe-in-pipe structure are obtained. The implicit-form frequency equations and the mode shapes of the structure with different boundary conditions are obtained by Green's functions. The results show that there is a mode exchange phenomenon in the composite pipe-in-pipe structure. A method to reasonably classify the frequencies of the pipe-in-pipe structure is proposed and the rationality of the method is proved by the corresponding mode shapes.