Improvement in Shaking-Table Control Performance by Real-Time Compensation of Reaction Force Caused by a Specimen

2007 ◽  
Vol 2 (2) ◽  
pp. 327-334
Author(s):  
Yoshihiro DOZONO ◽  
Toshihiko HORIUCHI ◽  
Hideo KATSUMATA ◽  
Takao KONNO
Keyword(s):  
Real Time ◽  
Reaction Force ◽  
Shaking Table ◽  
Control Performance

Shaking-Table Control by Real-Time Compensation of the Reaction Force Caused by a Nonlinear Specimen

2004 ◽  
Vol 126 (1) ◽  
pp. 122-127 ◽  
Author(s):  
Yoshihiro Dozono ◽  
Toshihiko Horiuchi ◽  
Hideo Katsumata ◽  
Takao Konno
Keyword(s):  
Real Time ◽  
Control Method ◽  
Reaction Force ◽  
Shaking Table ◽  
Transfer Characteristics ◽  
Series Of Experiments ◽  
The Difference ◽  
Do So

An improved shaking-table control method has been developed. This method compensates the reaction force caused by a nonlinear specimen in real time, and thus maintains a desired table acceleration. To do so, it identifies the difference between the desired and the actual transfer characteristics of the shaking table, then compensates for the difference. Because the required time for this combination of identification and compensation is less than one second, the method can compensate, in real time, for the disturbance caused by a nonlinear specimen. By means of a series of experiments, it is confirmed that the method can maintain a desired table acceleration even when a nonlinear specimen is under excitation.

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