611 非線形性を考慮した非圧縮性流体軸受を有する軸系の動的安定性(管内流れによる振動関連)(OS.17 : 流体関連振動のダイナミクスと制御)

概要

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In this paper, we investigate the stability analysis of the dynamic behavior of the fluid plane journal bearing with incompressible fluid considering the nonlinear terms of fluid forces. The stability analysis is examined by numerical simulations on each model of rigid shaft and elastic shaft. The stable regions by nonlinear analysis are compared with the regions by linear analysis. When nonlinear simulation analysis is performed, it become clear that there is rather a stable region which amplitude does not grow up abruptly, and this phenomenon can not only be pointed out, but also is judged to be only unstable by linear stable analysis. Finally, the experiment using actual bearings is performed and compared with the numerical results partially.
一般社団法人日本機械学会の論文
2001-08-03