F-1023 強幾何学的非線形ばね特性をもつ連続回転軸の強制振動 : 重力と軸力の影響(G10-2 振動解析・非線形)(G10 機械力学・計測制御部門一般講演)

概要

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When both ends of the rotor are supported by self-aligning double-row ball bearings, the geometric nonlinearity appears due to the stiffening effect in elongation of the shaft if the movements of the bearings in the longitudinal direction are restricted. When the rotor is slender, the geometric nonlinearity becomes very strong. Moreover, when the shaft is supported horizontally, the difference in support stiffnesses and the asymmetrical nonlinearity appear due to the shift of the equilibrium position. By the influences of the internal resonance, the nonlinear resonance phenomena become very complex. For example, resonance curves have a complex shape and almost periodic motions appear. We clarified these phenomena theoretically and experimentally.
一般社団法人日本機械学会の論文
2001-08-22