Vibration Analysis of Libra Inports
Fusion Science and Technology / Volume 8 / Number 1P2B / July 1985 / Pages 1884-1889
Inertial Confinement Fusion Reactor / Proceedings of the Sixth Topical Meeting on the Technology of Fusion Energy (San Francisco, California, March 3-7, 1985) / dx.doi.org/10.13182/FST85-A40036
Articles are hosted by Taylor and Francis Online.
ICF conceptual designs have been proposed in which flexible tubes conveying liquid metal are subjected to repetitive impulsive pressures. Because the tubes are vertical, very long and carry liquid metal, gravity gradient effects are substantial. The complete equation of motion is presented. Results are obtained for the vibrational mode shapes and corresponding frequencies of the tubes. It is shown that the gravity gradients can produce strong asymmetries in the mode shapes and shifts in the numerical values of the natural frequencies. Results of an approximate perturbation analysis are also presented to support the exact solution.
