513 非線形流体軸受で支持された高速回転体の地震応答解析に関する基礎検討

概要

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In this study, the seismic responses of three disks and two shafts are evaluated analytically. In an analytical model, the disk-shaft system is treated as two elastic shafts with three rigid disks, and the shafts are supported by fluid film bearings. Furthermore, the gyroscopic effects of disks and the fluid forces due to fluid film bearings are considered. The equations of motion are derived for the translational and rotational motions. The displacements of the centers of the disks and the shafts are evaluated by numerical simulations when the system is subjected to horizontal and vertical excitations. At first, the response behaviors of rotating disks without base excitation are evaluated, and at second, the effects of sinusoidal base excitations are investigated. Finally, the response behaviors of this system subjected to seismic waves with various frequencies are evaluated. The results for the different seismic wave inputs are shown here.
一般社団法人日本機械学会の論文
2011-09-05