| 摘要 |
PROBLEM TO BE SOLVED: To accurately evaluate the stability of a rotary shaft system, by extracting a characteristic vibration component of the rotary shaft system at operation. SOLUTION: A method includes a first step of measuring vibration generated during operation of a rotary machine by a rotating section or a non-rotating section; a second step of performing frequency analysis by paying attention to a characteristic frequency of the rotary machine relative to a vibration signal measured in the first step; a third step of acquiring a frequency response, by executing equalization processing continuously for a prescribed time so that a frequency component of the characteristic frequency subjected to frequency analysis in the second step can be extracted; and a fourth step of evaluating stability of the rotary shaft system, from the frequency response obtained in the third step. COPYRIGHT: (C)2011,JPO&INPIT |
