SPACE-HARMONIC ANALYSIS OF INPUT POWER FLOW IN A PERIODICALLY STIFFENED SHELL FILLED WITH FLUID

✍ Scribed by M.B. Xu; X.M. Zhang; W.H. Zhang

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 200 KB
• Volume: 222
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1998.2119

✦ Synopsis

In this paper, the input power ¯ow from a cosine harmonic circumferential line force into an in®nite cylindrical ¯uid-®lled shell with periodic stieners is studied. The stieners are idealized as line attachments capable of exerting line forces which relate to the stieners and the shell. The motion of the shell and the pressure ®eld in the contained ¯uid are described by the FluÈ gge thin shell theory and the Helmholt equation respectively. A periodic structure theory, space-harmonic analysis, is used to investigate this ¯uid-®lled periodic structure. The concept of the vibrational power ¯ow is introduced and the in¯uence of the parameters of the stieners upon the results is also dscussed.