### 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 language | English (US) |
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Title of host publication | Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE |

Publisher | ASME |

State | Published - 1998 |

Externally published | Yes |

Event | Proceedings of the 1998 17th International Conference on Offshore Mechanics and Arctic Engineering, OMAE - Lisbon, Portugal Duration: Jul 5 1998 → Jul 9 1998 |

### Other

Other | Proceedings of the 1998 17th International Conference on Offshore Mechanics and Arctic Engineering, OMAE |
---|---|

City | Lisbon, Portugal |

Period | 7/5/98 → 7/9/98 |

### Fingerprint

### ASJC Scopus subject areas

- Energy Engineering and Power Technology
- Ocean Engineering
- Mechanical Engineering

### Cite this

*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.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*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.

}

TY - GEN

T1 - Space-harmonic analysis of fluid-loaded shells with periodical ring stiffeners

AU - Xu, Mubing

AU - Zhang, Xiaoming

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0031625357&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031625357&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0031625357

BT - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE

PB - ASME

ER -