Show
Abstract
در این مقاله به بررسی عملکرد و کارایی روش همگام سازی مجازی (VSM) در شناسایی سختی سازه های میان مرتبه در حالتی که اثرات غیرخطی هندسی سازه (اثرات تحلیل مرتبه دوم) نیز در تحلیل آنها لحاظ گردیده، پرداخته شده است. بدین منظور، ابتدا فرمول بندی مناسبی مبتنی بر بسط تیلور مرتبه دوم رابطه اویلر-برنولی در خمش، برای در نظر گرفتن این اثرات پیشنهاد می گردد. سپس رکورد واقعی زلزله به مدل سازه اعمال شده و مقادیر واقعی پاسخ سازه، شامل سرعت و جابجایی در طبقات با در نظر گرفتن این اثرات در کاهش سختی آنها اندازه گیری می شود. در ادامه با استفاده از داده های اندازه گیری شده، یک سیستم مجازی با خصوصیات دینامیکی مشابه سیستم واقعی تعریف می گردد به طوری که با تنظیم پارامترهای داخلی روش VSM، پس از همگام شدن با سیستم واقعی، مقادیر سختی به مقادیر واقعی حاصل از تحلیل مرتبه دوم همگرا شوند. بدین ترتیب این روش با واقعی تر کردن نتایج شناسایی سازه، امکان شناسایی آسیب و کنترل سازه را در زمان وقوع زلزله بصورت مؤثرتری فراهم می کند.
شناسایی سازه; سازه هوشمند; روش همگام سازی مجازی; رفتار غیرخطی هندسی
1. Kirikera, G. R., Shinde, V., Schulz, M. J., Ghoshal, A., Sundaresan, M. J., et al. 2008, March. A Structural Neural System for Real-time Health Monitoring of Composite Materials. Structural Health Monitoring. SAGE Publications.
2. Torkamani, S., Butcher, E. A., & Todd, M. D. 2015, July 5. A real-time approach for damage identification using hyperchaotic probe and stochastic estimation. Meccanica. Springer Science and Business Media LLC.
3. Karami, K., Fatehi, P., & Yazdani, A. 2020, April 14. On‐line system identification of structures using wavelet‐Hilbert transform and sparse component analysis. Computer-Aided Civil and Infrastructure Engineering. Wiley.
4. García-Illescas, M. Á., Murià-Vila, D., & Alvarez-Icaza, L. 2019, July 21. Monitoring and Identification of Vibration Frequencies on a Portion of México City Metro Line 12. Advances in Civil Engineering. Hindawi Limited.
5. García-Illescas, M. A., & Alvarez-Icaza, L. 2017, October 11. On-Line Identification of Three-Dimensional Shear Building Models. Presented at the ASME 2017 Dynamic Systems and Control Conference, American Society of Mechanical Engineers.
6. Ebrahimian, H., Astroza, R., Conte, J. P., & Papadimitriou, C. 2018, January 24. Bayesian optimal estimation for output-only nonlinear system and damage identification of civil structures. Structural Control and Health Monitoring. Wiley.
7. Entezami, A., & Shariatmadar, H. 2017, February 1. An unsupervised learning approach by novel damage indices in structural health monitoring for damage localization and quantification. Structural Health Monitoring. SAGE Publications.
8. Li, H., Wang, G., Wei, B., Zhong, Y., & Zhan, L. 2019, July. Dynamic inversion method for the material parameters of a high arch dam and its foundation. Applied Mathematical Modelling. Elsevier BV.
9. Oh, C. K., & Beck, J. L. 2018, March. A Bayesian Learning Method for Structural Damage Assessment of Phase I IASC-ASCE Benchmark Problem. KSCE Journal of Civil Engineering. Springer Science and Business Media LLC
10. Hidayat, Z., Babuška, R., Núñez, A., & De Schutter, B. 2017, November. Identification of distributed-parameter systems from sparse measurements. Applied Mathematical Modelling. Elsevier BV.
11. Gong, Z., Liu, C., Teo, K. L., & Sun, J. 2019, May. Distributionally robust parameter identification of a time-delay dynamical system with stochastic measurements. Applied Mathematical Modelling. Elsevier BV.
12. Ghaderi, P., & Amini, F. 2020, November. Development of a new method for online parameter identification in seismically excited smart building structures using virtual synchronization and adaptive control design. Applied Mathematical Modelling. Elsevier BV.
13. Pena Ramirez, J., Fey, R. H. B., & Nijmeijer, H. 2013, September. Synchronization of weakly nonlinear oscillators with Huygens’ coupling. Chaos: An Interdisciplinary Journal of Nonlinear Science. AIP Publishing.
14. Peña-Ramírez, J., Fey, R. H. B., & Nijmeijer, H. 2012. An experimental study on synchronization of nonlinear oscillators with Huygens’ coupling. Nonlinear Theory and Its Applications, IEICE. Institute of Electronics, Information and Communications Engineers (IEICE).
15. Boccaletti, S., Kurths, J., Osipov, G., Valladares, D. L., & Zhou, C. S. 2002, August. The synchronization of chaotic systems. Physics Reports. Elsevier BV.
16. Pecora, L. M., & Carroll, T. L. 1990, February 19. Synchronization in chaotic systems. Physical Review Letters. American Physical Society (APS).
17. Boeing, G. 2016, November 13. Visual Analysis of Nonlinear Dynamical Systems: Chaos, Fractals, Self-Similarity and the Limits of Prediction. Systems. MDPI AG.
18. Kellert SH (1993) In the wake of chaos: unpredictable order in dynamical systems. University of Chicago Press, Chicago.
19. Parlitz, U. 1996, February 19. Estimating Model Parameters from Time Series by Autosynchronization. Physical Review Letters. American Physical Society (APS).
20. Parlitz, U., Junge, L., & Kocarev, L. 1996, December 1. Synchronization-based parameter estimation from time series. Physical Review E. American Physical Society (APS).
21. Blekhman I, Landa PS, Rosenblum MG (1995) Synchronization and chaotization in interacting dynamical systems. Appl Mech Rev.
22. Kapitaniak, T. 1994, August 1. Synchronization of chaos using continuous control. Physical Review E. American Physical Society (APS).
23. Physical Review Letters. American Physical Society (APS).
24. Rosenblum, M. G., Pikovsky, A. S., & Kurths, J. 1997, June 2. From Phase to Lag Synchronization in Coupled Chaotic Oscillators. Physical Review Letters. American Physical Society (APS).
25. Ghaderi, P., & Amini, F. 2018, November 7. A new method for online identification of civil structures: Virtual synchronization. International Journal of Adaptive Control and Signal Processing. Wiley.
26. Ghaderi, P., Amini, F., & Emamian, M. 2020, May 28. Online identification of torsionally coupled shear buildings using virtual synchronization method. Journal of Vibration and Control. SAGE Publications.
27. Ghaderi, P., & Goshtaei, S. M. 2020, August 24. Smart vibration control of structures with unknown structural parameters using integrated virtual synchronization method/linear‐quadratic regulator approach. Advanced Control for Applications. Wiley.
28. Amini, F., & Moradmand, M. 2020, July 15. Improved synchronization-based approach for online damage detection of civil structures. Engineering with Computers. Springer Science and Business Media LLC.