| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration testing device easily and synchronously driving multistage vibrating tables by a simple constitution and to provide its driving method. SOLUTION: This driving method for the vibration testing device is provided with a plurality of vibrating means 6 and 30 and a plurality of vibrating tables 5 and 9A, arranged with one vibrating table on the other vibrating table, synchronously actuates respective vibrating means, and tests the vibration of the specimens. After obtaining a transmission function to the respective vibrating tables based on a first acceleration signal obtained from the respective vibrating tables by giving a speed signal to the respective vibrating means, a second acceleration signal is obtained by detecting the acceleration signal, while vibrating the vibrating means by the corrected acceleration signal obtained by correcting a reference acceleration signal, which forms a target wave having a required vibration acceleration, using reverse characteristics of the transmission function. The difference between the reference acceleration signal and the second acceleration signal is corrected to be a prescribed value.
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