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Real-time hybrid experimental system with actuator delay compensation and its application to a piping system with energy absorber

1999; Wiley; Volume: 28; Issue: 10 Linguagem: Inglês

10.1002/(sici)1096-9845(199910)28

1096-9845

Tatsuo Horiuchi, Masahiko Inoue, Takao KONNO, Yoshio Namita,

Oil and Gas Production Techniques

Earthquake Engineering & Structural DynamicsVolume 28, Issue 10 p. 1121-1141 Research Article Real-time hybrid experimental system with actuator delay compensation and its application to a piping system with energy absorber T. Horiuchi, Corresponding Author T. Horiuchi Mechanical Engineering Research Laboratory, Hitachi Ltd, 502 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken, 300-0013, JapanMechanical Engineering Research Laboratory, Hitachi Ltd, 502 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken 300-0013, JapanSearch for more papers by this authorM. Inoue, M. Inoue Mechanical Engineering Research Laboratory, Hitachi Ltd, 502 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken, 300-0013, JapanSearch for more papers by this authorT. Konno, T. Konno Tsuchiura Works, Hitachi Ltd, 603 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken, 300-0013, JapanSearch for more papers by this authorY. Namita, Y. Namita Mechanical Engineering Research Laboratory, Hitachi Ltd, 502 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken, 300-0013, JapanSearch for more papers by this author T. Horiuchi, Corresponding Author T. Horiuchi Mechanical Engineering Research Laboratory, Hitachi Ltd, 502 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken, 300-0013, JapanMechanical Engineering Research Laboratory, Hitachi Ltd, 502 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken 300-0013, JapanSearch for more papers by this authorM. Inoue, M. Inoue Mechanical Engineering Research Laboratory, Hitachi Ltd, 502 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken, 300-0013, JapanSearch for more papers by this authorT. Konno, T. Konno Tsuchiura Works, Hitachi Ltd, 603 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken, 300-0013, JapanSearch for more papers by this authorY. Namita, Y. Namita Mechanical Engineering Research Laboratory, Hitachi Ltd, 502 Kandatsu-machi, Tsuchiura-shi, Ibaraki-ken, 300-0013, JapanSearch for more papers by this author First published: 29 September 1999 https://doi.org/10.1002/(SICI)1096-9845(199910)28:10 3.0.CO;2-OCitations: 277AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract A real-time hybrid experimental method, in which output from an actuator-excited vibration experiment and response calculation are combined on-line and conducted simultaneously in real time, is being developed as a new seismic experimental method for structural systems. In real-time hybrid experiments, however, there is an inevitable actuator-response delay, which has an effect equivalent to negative damping. To solve this problem, a real-time hybrid experimental system (including an actuator-delay compensation method) was developed. And seismic experiments were conducted in order to demonstrate the advantages of this system. Experimental results obtained using the developed hybrid experimental system were compared with exact results obtained using shaking-table experiments, and it was found that the two experimental methods gave almost identical results. It can therefore be concluded that the structural response can be obtained precisely by using the developed hybrid experimental system. Comparison of these experiments showed the advantages of the hybrid experiments; that is, they are simple and economical. This is because the hybrid experiment requires only a small structure as the excitation model, while a shaking-table experiment must consider the whole structural system. Copyright © 1999 John Wiley & Sons, Ltd. REFERENCES 1 M. Hakuno, M. Shidawara and T. Hara, ‘Dynamic destructive test of a cantilever beam controlled by an analog-computer’, Trans. Japan Soc. Civil Engrs 171, 1–9 (1969) (in Japanese). 2 H. Iemura, ‘Development and future prospect of hybrid experiments’, Trans. Japan Soc. Civil Engrs. 356, 1–10 (1985) (in Japanese). 3 K. Takanashi and M. Nakashima, ‘Japanese activities on on-line testing’, J. Engng. Mech. ASCE 113, 1014–1032 (1987). 4 S. A. Mahin, P-.S. B. Shing, C. R. Thewalt and R. D. 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