非線形ばね特性をもつ回転軸系の危険速度通過時の振動 : 第3報, 和差調波振動の共振点

概要

論文の詳細を見る
Nonstationary vibrations of a flexible rotating shaft with nonlinear spring characteristics during acceleration through a critical speed of a summed-and-differential harmonic oscillation were investigated. In numerical simulations, we investigated the influences of the angular acceleration λ, the initial angular position of the unbalance Ψ_o, and the initial rotating speed ω_s on the maximum amplitude. We performed experiments with various angular accelerations. The following results were obtained : The maximum amplitude depends not only on λ but also on Ψ_0 and ω_s. When the initial angular position Ψ_o changes, the maximum amplitude Varies between two values. The maximum and the minimum values of the maximum amplitude do not change monotonously for the angular acceleration. In order to always pass the critical speed with a finite amplitude during acceleration, the value of λ must exceed a certain critical value.
社団法人日本機械学会の論文
1990-02-25