Shaking-Table Control by Real-Time Compensation of the Reaction Force Caused by a Nonlinear Specimen-Reference-Cited by-同舟云学术

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

Published:2004-02-01 Issue:1 Volume:126 Page:122-127
ISSN:0094-9930
Container-title:Journal of Pressure Vessel Technology
language:en
Short-container-title:

Author:

Dozono Yoshihiro¹,Horiuchi Toshihiko²,Katsumata Hideo³,Konno Takao⁴

Affiliation:

1. Mechanical Engineering Research Laboratory, HITACHI, Ltd., 502 Kandatsu, Tsuchiura, Ibaraki 300-0013, Japan

2. Research & Development Group, HITACHI, Ltd., New Marunouchi Bldg. 5-1 Marunouchi 1-Chome, Chiyoda, Tokyo, 100-8220, Japan

3. Technical Research Institute, Obayashi Corporation, 640 Shimokiyoto 4-chome, Kiyose-shi, Tokyo, 204-8558, Japan

4. Public & Municipal Systems Division, HITACHI, Ltd., 603 Kandatsu, Tsuchiura, Ibaraki 300-0013, Japan

Abstract

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.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Link

http://asmedigitalcollection.asme.org/pressurevesseltech/article-pdf/126/1/122/5943867/122_1.pdf

Reference6 articles.

1. Nowak, R. F., Kusner, D. A., Larson, R. L., and Thoen, B. K., 2000, “Utilizing Modern Digital Signal Processing for Improvement of Large Scale Shaking Table Performance,” Proc. 12th World Conference on Earthquake Engineering, New Zealand, Paper No. 2035.

2. Ogawa, N., Ohtani, K., Nakamura, I., Sati, E., and Nagasaki, T., 2000, “Development of Core Technology for 3-D 1200 Tonne Large Shaking Table,” Proc. 12th World Conference on Earthquake Engineering, New Zealand, Paper No. 2156.

3. Dozono, Y., Horiuchi, T., and Konno, T., 2001, “Improvement of Shaking-Table Control With Adaptive Filter,” Trans. Jpn. Soc. Mech. Eng., Ser. C, C-67(664), pp. 3801–3807, (in Japanese).

4. A˚stro¨m, K. J., and Wittenmark, B., 1984, Computer Controlled Systems, Prentice-Hall, Inc., Englewood Cliffs, N.J., Chap. 13.

5. Horiuchi, T., Dozono, Y., and Konno, T., 2001, “Improvement of Accuracy of Seismic-Acceleration Waveforms of Shaking Tables by Compensating for the Reaction Force in Real-Time,” Trans. 16th International Conference on Structural Mechanics in Reactor Technology, Washington DC, Paper No. 1085.

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