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Adaptive Base Isolation using Innovative Magnetorheological Elastomers

Funding: 2015: $25,000
2016: $25,000
2017: $25,000

Project Member(s): Li, J.

Funding or Partner Organisation: Australian Research Council (ARC Discovery Projects)

Start year: 2015

Summary: Base isolation is of great importance for the safety of infrastructure, such as hospitals, bridges and nuclear power plants. Utilisation of traditional passive base isolator makes the base isolation system vulnerable and susceptible to unexpected/extreme dynamic loadings, such as earthquakes. This project aims to address this critical issue through the development of a novel adaptive seismic isolator working with an innovative stiffness softening magnetorheological elastomer (MRE). This research represents a fundamental step towards the understanding of MRE behaviour and will be the breakthrough for the development of a future smart base isolation system.

Publications:

Yu, Y, Wang, C, Gu, X & Li, J 2019, 'A novel deep learning-based method for damage identification of smart building structures', STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL, vol. 18, no. 1, pp. 143-163.
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Yu, Y, Li, Y, Li, J, Gu, X & Royel, S 2018, 'Nonlinear Characterization of the MRE Isolator using Binary-Coded Discrete CSO and ELM', International Journal of Structural Stability and Dynamics, vol. 18, no. 8.
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Li, Y & Li, J 2017, 'On rate-dependent mechanical model for adaptive magnetorheological elastomer base isolator', Smart Materials and Structures, vol. 26, no. 4.
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Askari, M, Li, J, Samali, B & Gu, X 2016, 'Experimental forward and inverse modelling of magnetorheological dampers using an optimal Takagi-Sugeno-Kang fuzzy scheme', Journal of Intelligent Material Systems and Structures, vol. 27, no. 7, pp. 904-914.
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Chen, X, Li, J, Li, Y & Gu, X 2016, 'Lyapunov-based Semi-active Control of Adaptive Base Isolation System employing Magnetorheological Elastomer base isolators', Earthquake and Structures, vol. 11, no. 6, pp. 1077-1099.
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Gu, X, Li, J, Li, Y & Askari, M 2016, 'Frequency control of smart base isolation system employing a novel adaptive magneto-rheological elastomer base isolator', Journal of Intelligent Material Systems and Structures, vol. 27, no. 7, pp. 849-858.
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Gu, X, Li, Y & Li, J 2016, 'Investigations on response time of magnetorheological elastomer isolator for real-time control implementation', Smart Materials and Structures, vol. 25, no. 11.
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Gu, X, Yu, Y, Li, J, Li, Y & Alamdari, M 2016, 'Semi-active storey isolation system employing MRE isolator with parameter identification based on NSGA-II with DCD', Earthquake and Structures, vol. 11, no. 6, pp. 1101-1121.
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Pokhrel, A, Li, J, Li, Y, Maksis, N & Yu, Y 2016, 'Comparative Studies of Base Isolation Systems featured with Lead Rubber Bearings and Friction Pendulum Bearings', Applied Mechanics and Materials, vol. 846, pp. 114-119.
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Yu, Y, Li, Y, Li, J & Gu, X 2016, 'A hysteresis model for dynamic behaviour of magnetorheological elastomer base isolator', Smart Materials and Structures, vol. 25, no. 5, pp. 1-15.
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Yu, Y, Li, Y, Li, J & Gu, X 2016, 'Self-adaptive step fruit fly algorithm optimized support vector regression model for dynamic response prediction of magnetorheological elastomer base isolator', Neurocomputing, vol. 211, pp. 41-52.
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Yu, Y, Li, Y, Li, J, Gu, X, Royel, S & Pokhrel, A 2016, 'Nonlinear and hysteretic modelling of magnetorheological elastomer base isolator using adaptive neuro-fuzzy inference system', Applied Mechanics and Materials, vol. 846, pp. 258-263.
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Yu, Y, Royel, S, Li, J, Li, Y & Ha, Q 2016, 'Magnetorheological elastomer base isolator for earthquake response mitigation on building structures: modeling and second-order sliding mode control', Earthquake and Structures, vol. 11, no. 6, pp. 943-966.
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Royel, S, Yu, Y, Li, Y, Li, J & Ha, QP 2015, 'A Hysteresis Model and Parameter Identification for MR Pin Joints using Immune Particle Swarm Optimization', Proceedings of the 2015 IEEE International Conference on Automation Science and Engineering., IEEE Conference on Automation Science and Engineering, IEEE, Gothenburg, Sweden, pp. 1319-1324.
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Keywords: Base isolation, Earthquake, Magnetorheology

FOR Codes: Construction Materials Performance and Processes not elsewhere classified, Manufacturing Processes and Technologies (excl. Textiles), Scientific Instruments, Earthquake Engineering, Structural Engineering