| 摘要 |
PROBLEM TO BE SOLVED: To obtain an accurate influence coefficient without using a trial weight. SOLUTION: This method of acquiring an influence coefficient is for acquiring an influence coefficient indicating a change in vibration of a rotary body corresponding to a change in rotational balance of the rotary body. This method includes a first vibration data acquiring step S1 acquiring a first set of vibration data by measuring vibration of a support that supports the rotary body with the rotary body rotating, a cutting step S2 causing a change of rotation balance in the rotary body by cutting a part of the rotary body, a second vibration data acquiring step S3 for acquiring a second set of vibration data by measuring the vibration of the support with the rotary body rotating, and a coefficient calculating step S4 calculating the influence coefficient of the rotary body based on the first set of vibration data, the change of the rotation balance caused in the cutting step, and the second set of vibration data. COPYRIGHT: (C)2011,JPO&INPIT
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