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Smart Structures and Systems Volume 36, Number 4, October 2025 , pages 223-237 DOI: https://doi.org/10.12989/sss.2025.36.4.223 |
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Smart vibro-acoustic control of FGP concrete structures via NC shunt damping and DNN-GA optimization |
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Bin Wang, Bo Han, Mehran Safarpour and Murat Yaylacı
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| Abstract | ||
| This research introduces a smart control paradigm for the stochastic vibro-acoustic suppression of functionally graded piezoelectric (FGP) concrete plates, which are developed for the smart concrete structures and systems domain. The proposed method integrates negative capacitance piezoelectric shunt damping (NCPSD), the Carrera Unified Formulation (CUF), and a smart hybrid optimization mechanism comprising deep neural networks and Genetic algorithms (DNN-GA). A detailed multi-layer modeling framework is created through CUF, which efficiently depicts the complex electromechanical responses such as shear deformation, geometric nonlinearity, and spatial grading in the piezoelectric properties. A smart passiveactive damping interface is realized by embedding piezoelectric sensor-actuator pairs connected to a negative capacitance-resistive-inductive (NC-RL) shunt circuit. This setup significantly boosts dynamic adaptability and provides broad bandwidth attenuation. The DNN-GA architecture controls the parameters by tuning them adaptively according to the stochastic excitations and thus navigating through the complex nonlinear response space of the FGP concrete system effectively. The genetic algorithm proceeds rapidly through the zones of the optimal solutions while the deep neural network ensures real-time prediction and adaptation amid the parametric uncertainties. There was a considerable reduction in structural vibration and radiation of acoustic energy particularly in the mid-to-high frequency range, as simulation results indicated. This research supports the possibility of using smart damping solutions for smart concrete structures and systems abroad, especially in the aerospace and automotive industries where the ability to reduce noise and vibrations adaptively is needed the most. | ||
| Key Words | ||
| DNN-GA algorithm; intelligent structural dynamics; functionally graded piezoelectric concrete plates; negative capacitance shunt damping; smart concrete structures and systems; stochastic vibro-acoustic control | ||
| Address | ||
| (1) Bin Wang: School of Civil Engineering and Transportation Engineering, Yellow River Conservancy Technical University, Kaifeng 475004, Henan, China; (2) Bo Han: College of Science, Xi'an University of Architecture and Technology, Xi'an 710311, Shanxi Province, China; (3) Mehran Safarpour: Faculty of Engineering, Department of Mechanics, Tarbiat Modares University, Tehran, Iran; (4) Murat Yaylacı: Department of Civil Engineering, Recep Tayyip Erdogan University, 53100, Rize, Turkey; (5) Murat Yaylacı: Turgut Kiran Maritime Faculty, Recep Tayyip Erdogan University, 53900, Rize, Turkey. | ||