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Patent Searching and Data


Title:
VIBRATION-TESTING APPARATUS
Document Type and Number:
Japanese Patent JP2008233075
Kind Code:
A
Abstract:

To improve the reproducibility of a target waveform signal by compensating for the reactive force of a specific frequency component received from a sample, in a vibration-testing apparatus that conducts shaking test on a structure.

A vibration-testing apparatus 1 includes a waveform generating device 6, a hydraulic vibration exciting device 3, a sample 2, a measuring device 5, and a control device 4 for controlling the movement of the hydraulic vibration exciter 3. Either a table 16, on which the sample 2 is mounted or the sample 2 is connected directly to the hydraulic vibration exciter 3. When the sample 2 generates an external force of a specific frequency component, a disturbance compensation filter 20 having the maximum value of gain at the frequency component, is added to an acceleration signal 18a of the table 16.


Inventors:
Hirai, Hirotake
Seki, Kenta
Toikawa, Sachihiro
Yasuda, Kazuteru
Kishida, Kazuyoshi
Application Number:
JP2008000037479
Publication Date:
October 02, 2008
Filing Date:
February 19, 2008
Export Citation:
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Assignee:
NAGOYA INSTITUTE OF TECHNOLOGY
HITACHI PLANT TECHNOLOGIES LTD
International Classes:
G01M7/02