Space-harmonic analysis of fluid-loaded shells with periodical ring stiffeners

Mubing Xu, Xiaoming Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the vibration of an infinite thin fluid-loaded shell with periodic circumferential stiffeners is studied. The stiffeners are idealized as line attachments capable of exerting line forces upon the shell, and these forces relate to the coupling of the stiffeners and the shell. The simple harmonic motion of shell and the pressure field in the fluid are described by the Flugge shell equations and Helmholtz equation respectively. By using periodic structure theory, the response of this structure to a convected harmonic pressure is studied firstly. The Fourier transforms and the space-harmonic analysis are used to find the response. Then, the response to a line circumferential cosine harmonic force is investigated. The concept of vibration power flow is introduced and the influences of the stiffeners' parameters on the power flow are discussed also.

Original languageEnglish (US)
Title of host publicationProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
PublisherASME
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 17th International Conference on Offshore Mechanics and Arctic Engineering, OMAE - Lisbon, Portugal
Duration: Jul 5 1998Jul 9 1998

Other

OtherProceedings of the 1998 17th International Conference on Offshore Mechanics and Arctic Engineering, OMAE
CityLisbon, Portugal
Period7/5/987/9/98

Fingerprint

Harmonic analysis
Helmholtz equation
Fluids
Periodic structures
Fourier transforms

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

Xu, M., & Zhang, X. (1998). Space-harmonic analysis of fluid-loaded shells with periodical ring stiffeners. In Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE ASME.

Space-harmonic analysis of fluid-loaded shells with periodical ring stiffeners. / Xu, Mubing; Zhang, Xiaoming.

Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. ASME, 1998.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xu, M & Zhang, X 1998, Space-harmonic analysis of fluid-loaded shells with periodical ring stiffeners. in Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. ASME, Proceedings of the 1998 17th International Conference on Offshore Mechanics and Arctic Engineering, OMAE, Lisbon, Portugal, 7/5/98.
Xu M, Zhang X. Space-harmonic analysis of fluid-loaded shells with periodical ring stiffeners. In Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. ASME. 1998
Xu, Mubing ; Zhang, Xiaoming. / Space-harmonic analysis of fluid-loaded shells with periodical ring stiffeners. Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. ASME, 1998.
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