Vibration Power Flow of an Infinite Cylindrical Shell Submerged in Viscous Fluids
Joint Authors
Chen, Haosen
Yang, Peng
Shen, Yijun
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-12
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
In the previous investigations of the vibroacoustic characteristics of a submerged cylindrical shell in a flow field, the fluid viscosity was usually ignored.
In this paper, the effect of fluid viscosity on the characteristics of vibration power flow in an infinite circular cylindrical shell immersed in a viscous acoustic medium is studied.
Flügge’s thin shell theory for an isotropic, elastic, and thin cylindrical shell is employed to obtain the motion equations of the structure under circumferential-distributed line force.
Together with the wave equations for the viscous flow field as well as continuity conditions at the interface, the vibroacoustic equation of motion in the coupled system is derived.
Numerical analysis based on the additional-damping numerical integral method and ten-point Gaussian integral method is conducted to solve the vibroacoustic coupling equation with varying levels of viscosity.
Then, the variation of the input power flow against the nondimensional axial wave number in the coupled system with different circumferential mode numbers is discussed in detail.
It is found that the influence of fluid viscosity on the vibroacoustic coupled system is mainly concentrated in the low-frequency band, which is shown as the increase of the crest number and amplitude of the input power flow curves.
American Psychological Association (APA)
Chen, Haosen& Yang, Peng& Shen, Yijun. 2020. Vibration Power Flow of an Infinite Cylindrical Shell Submerged in Viscous Fluids. Shock and Vibration،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1212741
Modern Language Association (MLA)
Chen, Haosen…[et al.]. Vibration Power Flow of an Infinite Cylindrical Shell Submerged in Viscous Fluids. Shock and Vibration No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1212741
American Medical Association (AMA)
Chen, Haosen& Yang, Peng& Shen, Yijun. Vibration Power Flow of an Infinite Cylindrical Shell Submerged in Viscous Fluids. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1212741
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1212741