The vibration of a vertical cylindrical shell partially filled with liquid, induced by longitudinal excitation

✍ Scribed by S. Kobayashi; T. Nagashima

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 699 KB
• Volume: 1
• Category: Article
• ISSN: 0889-9746
• DOI: 10.1016/s0889-9746(87)90293-3

✦ Synopsis

As a fundamental research problem relating to the amplitude of Pogo oscillations of liquid propellant launch vehicles, an experimental study was conducted in which a vertical cylindrical shell partially filled with liquid was longitudinally excited. The vibration of the shell wall was induced at exciting frequencies close to the fundamental natural frequency of longitudinal vibration of the system. It was a phenomenon of parametric excitation, i.e. the longitudinal motion of the liquid excited the transverse wall vibration. A non-linear theoretical analysis has been carried out in order to model this phenomenon, including the study of existence and stability of this wall vibration. Good agreement was observed between the analytical and the experimental results.