Dynamic Behavior of Tubes Subjected to Internal and External Cross Flows | Zendy

Yii-Mei Huang | Zendy; ChihShan Hsu | Zendy

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Dynamic Behavior of Tubes Subjected to Internal and External Cross Flows

Author(s) -

Yii-Mei Huang,

ChihShan Hsu

Publication year - 1997

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/1997/943517

Subject(s) - mechanics , galerkin method , internal flow , flow (mathematics) , tube (container) , instability , shell (structure) , stability (learning theory) , vibration , internal pressure , materials science , control theory (sociology) , physics , thermodynamics , computer science , finite element method , machine learning , composite material , control (management) , quantum mechanics , artificial intelligence

This article presents a method for thoroughly examining the dynamic characteristics of a tube under the influence of either the internal flow or the external cross flow. The tube is modeled as a thin cylindrical shell whose governing equations are derived from an energy method. The effects due to internal flow are introduced into the system through initial stress. Galerkin’s method in conjunction with the method of multiple scales is employed for obtaining the stability of the tube vibration. According to the results, instability can occur under certain conditions of resonance. Regarding the effects of the external cross flow, a numerical approach is initially employed to interpolate the experimental data of the pressure distributions due to the flow. The dynamic characteristics of the tube under steady flows and flows with small time variation are then investigated. Stability of the solution is also discussed.

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