ねじり疲労性クラックロータの振動 : 基本ロータによる定性的解析

概要

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In this study, a qualitative analysis of the dynamics of a rotor system with a tortional crack that grows at an algle of 45 degrees toward the axis of the shaft is presented. on the assumption that the bending stiffness of the shaft changes synchronously with the open-close behavior of the crack caused by the tortional vibration of the shaft, the equation with parametric excitation on the coordinate system rotating at the operation speed of the rotor. The solution of the equation shows that the steady-state response of the rotor system with the tortional crack contains the frequencies represented by mΩ+nω_r/2; m=1, 2, and n=0, 1, 2, …, where Ω is the operation speed of the rotor, and ω_0 is the frequency of tortinal vibration of the shaft.
社団法人日本機械学会の論文
1988-05-25