Method for calculating synchronization deviation between vibration waveform data, and synchronization correction method for vibration waveform data

摘要

PROBLEM TO BE SOLVED: To accurately obtain a synchronization deviation amount between vibration waveform data.SOLUTION: A method for calculating a synchronization deviation amount between vibration waveform data with respect to the vibration waveform data measured by a plurality of vibration meters respectively installed at different positions of a structure, and a method for correcting synchronization between the vibration waveform data, are provided. The vibration meter includes a first vibration meter installed on the input side and a second vibration meter installed on the output side. The method for calculating a synchronization deviation amount includes: a step S1 of obtaining first vibration waveform data measured by the first vibration meter, and second vibration waveform data measured by the second vibration meter; a step S2 of obtaining a transfer function which is a vibration characteristic of the structure; a step S3 of obtaining third vibration waveform data from which the influence of the transfer function is removed from the second vibration waveform data; and a step S4 of obtaining a synchronization deviation amount between the first vibration waveform data and the second vibration waveform data on the basis of a correlation between the first vibration waveform data and the second vibration waveform data.SELECTED DRAWING: Figure 5