| 摘要 |
PROBLEM TO BE SOLVED: To compute dynamic characteristics of each machine element that configures a rotor system of a turbo machine. ! SOLUTION: Performed are: a modeling process (Step S201) to model a rotor system of a turbo machine with a vibration equation for the rotor system by expressing a characteristic matrix in the vibration equation by known parameters regarding machine elements of which dynamic characteristics can be computed in advance, and unknown parameters regarding machine elements of which dynamic characteristics are hardly computed in advance; a vibration detection process (Step S204) to detect vibration generated in the rotor system; a mode analysis process (Step S205) to compute an eigenvalue and a vibration mode of the rotor system based on vibration signal data detected in the vibration detection process; and a dynamic characteristics computing process (Step S206) to computer the unknown parameters from the vibration equation obtained in the modeling process and from the eigenvalue an |
