Semiactive control of earthquake-excited structures
Yıl: 2000 Cilt: 24 Sayı: 4 Sayfa Aralığı: 237 - 246 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022
Semiactive control of earthquake-excited structures
Öz: Deprem gibi bilinmeyen etkiler nedeniyle oluşan yapısal titreşimleri bastırabilmek için değişken rijitlik ve sönüme sahip bir eyleyici kullanılarak yeni bir yarı aktif kapalı çevrim kontrol algoritması geliştirilmiştir. Eyleyicinin rijitlik ve sönüm karakteristiklerinin biri birinden bağımsız olarak değiştirilebileceği kabul edilmiştir. Kapalı çevrim kontrol algoritması sistem enerjisinin değişme hızı mümkün olduğu kadar negatif olmaya zorlanarak elde edilmiştir. Lineer regülatör probleminin yapılara bir uygulaması olan optimal aktif kontrol algoritması karşılaştırma amacıyla kullanılmıştır. Önerilen metodun verimliliğini gösterebilmek için deprem kuvvetleri etkisindeki tek katlı sönümlü bir yapının kontrollü ve kontrolsüz davranışı incelenmiştir. Önerilen yarı aktif kontrolün depremin neden olduğu yapısal titreşimleri azalmada efektif olarak kullanılabileceği sayısal olarak gösterilmiştir
Anahtar Kelime: Konular:
Deprem etkisindeki yapıların yarı aktif kontrolu
Öz: A new semiactive closed loop control algorithm is developed using an actuator with variable stiffness and damping to suppress structural vibrations caused by unknown disturbances such as earthquakes. It is assumed that the stiffness and the damping characteristics of the actuator can be changed independently from each other. The closed loop control algorithm is obtained by forcing the rate of change of the system energy to be as negative as possible. Optimal active control algorithm, which is an application of the linear regulator problem to structures, is used for the purpose of comparison. To demonstrate the efficiency of the proposed method, controlled and uncontrolled behaviour of a single story damped structure subjected to earthquake forces is investigated. It is shown numerically that the proposed semiactive control can be used effectively to reduce the earthquake induced structural vibrations.
Anahtar Kelime: Konular:
Belge Türü: Makale Makale Türü: Diğer Erişim Türü: Erişime Açık
- Aldemir, U., “Optimal control of structures", PhD thesis, Istanbul Technical University, 1999.
- Gantmacher, F. R., The Theory of Matrices, Vol II Chelsea Publication Company, New York, 1960.
- Gavin, H.P., Hanson, R.D. and Filisko, F.E., “Electrorheological Dampers, Part I: Analysis and Design.", J. of Applied Mechanics, ASME.63, 669-675,1996.
- Housner, G. W., Bergman, L. A., Caughey., T. K, Chassiakos, A. G., Claus, R. O., Masri, S.F., Skelton, R. E. Soong, T. T., Spencer, B. F. and Yao, J. T. P.. “Structural Control: Past, Present and Future", J. of Engineering Mechanics, ASCE. 123(9), 897-958, 1997.
- Lai, J.S. and Wang, K.W., “Parametric control of structural vibrations via adaptable stiffness dynamic absorbers.", Journal of Vibration and Acoustics, 118, January, 41-47, 1996.
- Lee, S. K., and Kozin, F., “Bounded state control of structures with uncertain parameters.", ASCE, Dynamic Response of Structures, 788-94, 1986.
- Meirovitch, L., Dynamics and Control of Structures, John Wiley and Sons, 1990.
- Onodo, J. and Watanabe, N., “Vibration suppression by variable-stiffness members.", AIAA Journal, 29(6), 977-983, 1991.
- Pontryagin, L.S., and Boltianski, P.V., Mathematical Theory of Optimal Processes, Fizmagtiz, Moscow, 1962.
- Rodellar, J., Barbat, A. H. and Martin-Sanchez, J. M., “Predictive control of structures", ASCE, J. Engrg. Mech., 113, 797-817, 1986.
- Soong, T. T., Active Structural Control: Theory and Practice, Longman Scientific and Technical, Essex, England, 1990.
- Yang, J. N., Akbarpour, A., and Ghaemmaghami, P., “New optimal control algorithms for structural control.", J. of Engineering Mechanics, ASCE. 113(9), 1369-1386, 1987.
- Yao, J.T.P., “Concept of structural control", J. of Structural Division, ASCE 98,1567-74. 1972.
| APA | ALDEMİR Ü, BAKİOĞLU M (2000). Semiactive control of earthquake-excited structures. , 237 - 246. |
| Chicago | ALDEMİR ÜNAL,BAKİOĞLU Mehmet Semiactive control of earthquake-excited structures. (2000): 237 - 246. |
| MLA | ALDEMİR ÜNAL,BAKİOĞLU Mehmet Semiactive control of earthquake-excited structures. , 2000, ss.237 - 246. |
| AMA | ALDEMİR Ü,BAKİOĞLU M Semiactive control of earthquake-excited structures. . 2000; 237 - 246. |
| Vancouver | ALDEMİR Ü,BAKİOĞLU M Semiactive control of earthquake-excited structures. . 2000; 237 - 246. |
| IEEE | ALDEMİR Ü,BAKİOĞLU M "Semiactive control of earthquake-excited structures." , ss.237 - 246, 2000. |
| ISNAD | ALDEMİR, ÜNAL - BAKİOĞLU, Mehmet. "Semiactive control of earthquake-excited structures". (2000), 237-246. |
| APA | ALDEMİR Ü, BAKİOĞLU M (2000). Semiactive control of earthquake-excited structures. Turkish Journal of Engineering and Environmental Sciences, 24(4), 237 - 246. |
| Chicago | ALDEMİR ÜNAL,BAKİOĞLU Mehmet Semiactive control of earthquake-excited structures. Turkish Journal of Engineering and Environmental Sciences 24, no.4 (2000): 237 - 246. |
| MLA | ALDEMİR ÜNAL,BAKİOĞLU Mehmet Semiactive control of earthquake-excited structures. Turkish Journal of Engineering and Environmental Sciences, vol.24, no.4, 2000, ss.237 - 246. |
| AMA | ALDEMİR Ü,BAKİOĞLU M Semiactive control of earthquake-excited structures. Turkish Journal of Engineering and Environmental Sciences. 2000; 24(4): 237 - 246. |
| Vancouver | ALDEMİR Ü,BAKİOĞLU M Semiactive control of earthquake-excited structures. Turkish Journal of Engineering and Environmental Sciences. 2000; 24(4): 237 - 246. |
| IEEE | ALDEMİR Ü,BAKİOĞLU M "Semiactive control of earthquake-excited structures." Turkish Journal of Engineering and Environmental Sciences, 24, ss.237 - 246, 2000. |
| ISNAD | ALDEMİR, ÜNAL - BAKİOĞLU, Mehmet. "Semiactive control of earthquake-excited structures". Turkish Journal of Engineering and Environmental Sciences 24/4 (2000), 237-246. |
