Comparative Analysis of Novel Nonlinear Tuned Mass Damper Inerter and Traditional Tuned Mass Dampers in Steel Shear Frame Structures Mohammad Alibabaei Shahraki, Seyyed Amirhossein Hosseini Chaleshtori International Journal of Structural Stability and Dynamics, 2026 This study thoroughly analyzes the Nonlinear Tuned Mass Damper Inerter (NTMDI) system and its performance relative to traditional systems like the Tuned Mass Damper (TMD) and Tuned Mass Damper Inerter (TMDI) in steel shear frame structures. Utilizing Opensees software, a 10-story steel shear frame is modeled, examining its dynamic responses under 10 seismic events. The Slime Mold Algorithm (SMA) is deployed to optimize the parameters of all three dampers, focusing on minimizing the maximum relative roof displacement. The findings indicate that while the TMD system effectively absorbs and dissipates energy, it demonstrates lower efficiency in reducing structural responses such as relative roof displacement, acceleration, and base shear due to its linear damping and stiffness characteristics and reliance on mass motion. Conversely, the TMDI employs inertial amplification, while the NTMDI integrates both inertial amplification and nonlinear stiffness mechanisms, leading to superior energy dissipation and enhanced control of structural response. Among the evaluated systems, the NTMDI consistently outperforms the others, achieving average reductions of 23.80% in relative displacement, 30.73% in base shear, and 17.25% in roof acceleration compared to an uncontrolled structure. Time-history evaluations validate NTMDI’s efficiency in mitigating seismic effects. Despite the TMD having the largest damper stroke and energy absorption, the NTMDI achieves more significant response reductions with reduced damper motion, highlighting the importance of nonlinear stiffness. In conclusion, the NTMDI system significantly advances passive seismic control by integrating nonlinear stiffness with an inerter device, enhancing energy dissipation, and improving structural stability during seismic events.
Seismic Performance of FTMDs in High-Rise Structures Considering Uncertainties Mohammad Alibabaei Shahraki ASCE ASME Journal of Risk and Uncertainty in Engineering Systems Part A Civil Engineering, 2026 Addressing seismic vibrations in tall buildings has long been a challenge, with tuned mass dampers (TMDs) recognized as a vital solution. The friction tuned mass damper (FTMD) is particularly notable for its nonlinear characteristics and independence from velocity-based damping systems. This research investigates the performance of FTMDs in 20- and 40-story steel moment-resisting frames (MRF) modeled using OpenSees, with a focus on structures featuring rigid connections and panel zones to replicate real-world nonlinear behavior. Nonlinear dynamic analysis, combined with Monte Carlo simulations, was employed to evaluate the effectiveness of FTMD under variations in mass ratio, damping ratio, frequency tuning, and friction coefficient. The Monte Carlo approach provided a probabilistic perspective for evaluating structural responses, such as roof displacement, inter-story drift, and acceleration, under a range of earthquake intensities. Results indicate that FTMDs can significantly reduce seismic vibrations, thereby enhancing structural resilience through decreased displacements and improved energy dissipation. However, sensitivity analyses reveal that even slight changes in parameters can significantly impact performance, underscoring the need for robust optimization methods. The study demonstrates the versatility of FTMDs across various structural models, underscoring their significance in enhancing sustainability, disaster resilience, and economic viability in contemporary high-rise construction. These insights advance the field of seismic control technologies and interdisciplinary studies in structural engineering.
Cloud drift optimization algorithm as a nature-inspired metaheuristic Mohammad Alibabaei Shahraki Discover Computing, 2025 This study introduces the Cloud Drift Optimization (CDO) algorithm, an innovative nature-inspired metaheuristic approach to solving complex optimization problems. The CDO algorithm mimics the dynamic behavior of cloud particles influenced by atmospheric forces, striking a refined balance between exploration and exploitation. It features an adaptive weight adjustment mechanism that alters the cloud’s real-time drift behavior, allowing for efficient navigation through the search space. Using a cloud-based drift strategy, CDO harnesses probabilistic movements to maneuver through the optimization landscape more effectively. The algorithm has undergone rigorous testing against various established unimodal and multimodal benchmark functions, where it showcases outstanding performance characterized by faster convergence rates, high robustness, and exceptional solution accuracy compared to top contemporary optimization techniques. Additionally, CDO applies to numerous real-world engineering optimization tasks, such as designing cantilever beams, three-bar trusses, tension/compression springs, and pressure vessels. The empirical data highlight CDO’s ability to deliver innovative solutions across engineering fields, machine learning applications, and other practical optimization scenarios. These results indicate that CDO is a promising tool for tackling highly complex and multidimensional problems in academic and industrial environments.
Energy-based wind vibration control of turbines equipped with nonlinear tuned mass damper inerter considering soil-structure interaction Mohammad Alibabaei Shahraki, Onur Araz Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy, 2025 This study evaluates the effectiveness of a Nonlinear Tuned Mass Damper Inerter (NTMDI) in mitigating wind-induced vibrations in wind turbines, with explicit consideration of soil–structure interaction (SSI). Kinetic energy is selected as the primary response metric, supported by nacelle displacement, total structural energy, soil energy absorption, acceleration reduction, and residual soil energy to provide a comprehensive assessment. A detailed numerical model is developed in OpenSees, incorporating SSI effects and subjected to turbulent wind loads generated using the Shinozuka method. NTMDI parameters are optimized using the Multi-Objective Cuckoo Search Algorithm (MOCS) to balance kinetic-energy minimization, displacement suppression, and soil-energy management. The results show that NTMDI implementation achieves approximately 45% reduction in total kinetic energy, 20% reduction in nacelle displacement, and 25% reduction in tower acceleration relative to the uncontrolled system. When SSI is considered, the NTMDI further improves performance by reducing soil energy demand by an additional 15–20%, highlighting the importance of absorber–soil coupling. Compared with traditional TMDIs, the NTMDI exhibits superior adaptability and efficiency, particularly for flexible foundations. These findings confirm NTMDIs as an effective passive control strategy for enhancing wind-turbine stability.
Optimal design of a novel enhanced inerter-based tuned mass damper in seismic-excited structures considering SSI effects O Araz, MA Shahraki Advances in Engineering Software 217, 104162 , 2026 2026 Citations: 3
Impact of soil-structure interaction on earthquake response of high-rise steel frames equipped with TMD and FTMD optimized through cloud drift optimization M Alibaabaei Shahraki, O Araz, H Ahmadi Soil Dynamics and Earthquake Engineering 208 (1), 1-19 , 2026 2026
Optimization of NTMDI parameters using metaheuristic algorithms and spectral analysis for seismic response mitigation M Alibabaei Shahraki Discover Civil Engineering 2 (1), 164 , 2025 2025 Citations: 2
Cloud drift optimization algorithm as a nature-inspired metaheuristic M Alibabaei Shahraki Discover Computing 28 (1), 173 , 2025 2025 Citations: 12
Reduction of pounding between adjacent structures with NTMDI: energy-oriented approach M Alibabaei Shahraki, M Basili Innovative Infrastructure Solutions 10 (7), 290 , 2025 2025 Citations: 2
Energy-based wind vibration control of turbines equipped with nonlinear tuned mass damper inerter considering soil-structure interaction M Alibabaei Shahraki, O Araz Proceedings of the Institution of Mechanical Engineers, Part A: Journal of … , 2025 2025 Citations: 8
Comparative Analysis of Novel Non-Linear Tuned Mass Damper Inerter and Traditional Tuned Mass Dampers in Steel Shear Frame Structures M Alibabaei Shahraki, SA Hosseini Chaleshtori International Journal of Structural Stability and Dynamics , 2025 2025 Citations: 13
Seismic Performance of FTMD in High-Rise Structures Considering Uncertainties M Alibabaei Shahraki ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A … , 2025 2025 Citations: 1
Evaluating the Seismic Performance of Advanced Tuned Mass Dampers Considering Soil–Structure Interaction Effect M Alibabaei Shahraki, M Roozbahan Iranian Journal of Science and Technology, Transactions of Civil Engineering … , 2025 2025 Citations: 2
Response mitigations of adjacent structure with MPTMD under real and stochastic excitations M Alibabaei Shahraki Discover Geoscience 3 (47), 1-20 , 2025 2025 Citations: 5
Assessing the Impact of NTMDI on the Dynamic Response of Steel Structures with Consideration for Soil-Structure Interaction M Alibabaei Shahraki, M Nikpay, M Basili Available at SSRN 5133469 , 2025 2025
Exploring the Impact of Incorporating Fine-Grained Materials on the Resistance Characteristics of Cement-Reinforced Clay SA Hosseini Chaleshtori, M Alibabaei Shahraki American Journal of Engineering and Applied Sciences 17 (3), 142-154 , 2024 2024 Citations: 2
Assessing the seismic behavior of structures controlled with a novel elastoplastic-tuned mass damper inerter considering the effects of soil-structure interactions M Alibabaei Shahraki, R Kamgar, H Heidarzadeh Structures 57, 105265 , 2023 2023 Citations: 38
Damage-based design of multiple tuned mass dampers to improve the seismic performance of steel frame structures M Alibabaei Shahraki, R Kamgar, H Heidarzadeh Soil Dynamics and Earthquake Engineering 173, 108062 , 2023 2023 Citations: 52
Assessing the Effectiveness of Viscous Damper in Enhancing Steel Frame Performance Level M Alibabaei Shahraki, A Hosseini Chaleshtori 2023 Citations: 2
Optimizing the Parameters of the Tuned Mass Damper Inerter to Reduce the Park-Ang Damage Index M Alibabaei Shahraki, A Hosseini Chaleshtori 2023 Citations: 4
Optimization of elastoplastic-tuned mass damper parameters to reduce the story drift ratio under earthquake excitation (In Persian) M Alibabaei Shahraki, AH Hosseini chaleshtori, M Moussavi bidleh, ... 7th international conference on civil, architecture and urbanity engineering , 2023 2023
Seismic performance of Elastoplastic Tuned Mass Damper Inerter M Alibabaei Shahraki 2022
MOST CITED SCHOLAR PUBLICATIONS
Damage-based design of multiple tuned mass dampers to improve the seismic performance of steel frame structures M Alibabaei Shahraki, R Kamgar, H Heidarzadeh Soil Dynamics and Earthquake Engineering 173, 108062 , 2023 2023 Citations: 52
Assessing the seismic behavior of structures controlled with a novel elastoplastic-tuned mass damper inerter considering the effects of soil-structure interactions M Alibabaei Shahraki, R Kamgar, H Heidarzadeh Structures 57, 105265 , 2023 2023 Citations: 38
Comparative Analysis of Novel Non-Linear Tuned Mass Damper Inerter and Traditional Tuned Mass Dampers in Steel Shear Frame Structures M Alibabaei Shahraki, SA Hosseini Chaleshtori International Journal of Structural Stability and Dynamics , 2025 2025 Citations: 13
Cloud drift optimization algorithm as a nature-inspired metaheuristic M Alibabaei Shahraki Discover Computing 28 (1), 173 , 2025 2025 Citations: 12
Energy-based wind vibration control of turbines equipped with nonlinear tuned mass damper inerter considering soil-structure interaction M Alibabaei Shahraki, O Araz Proceedings of the Institution of Mechanical Engineers, Part A: Journal of … , 2025 2025 Citations: 8
Response mitigations of adjacent structure with MPTMD under real and stochastic excitations M Alibabaei Shahraki Discover Geoscience 3 (47), 1-20 , 2025 2025 Citations: 5
Optimizing the Parameters of the Tuned Mass Damper Inerter to Reduce the Park-Ang Damage Index M Alibabaei Shahraki, A Hosseini Chaleshtori 2023 Citations: 4
Optimal design of a novel enhanced inerter-based tuned mass damper in seismic-excited structures considering SSI effects O Araz, MA Shahraki Advances in Engineering Software 217, 104162 , 2026 2026 Citations: 3
Optimization of NTMDI parameters using metaheuristic algorithms and spectral analysis for seismic response mitigation M Alibabaei Shahraki Discover Civil Engineering 2 (1), 164 , 2025 2025 Citations: 2
Reduction of pounding between adjacent structures with NTMDI: energy-oriented approach M Alibabaei Shahraki, M Basili Innovative Infrastructure Solutions 10 (7), 290 , 2025 2025 Citations: 2
Evaluating the Seismic Performance of Advanced Tuned Mass Dampers Considering Soil–Structure Interaction Effect M Alibabaei Shahraki, M Roozbahan Iranian Journal of Science and Technology, Transactions of Civil Engineering … , 2025 2025 Citations: 2
Exploring the Impact of Incorporating Fine-Grained Materials on the Resistance Characteristics of Cement-Reinforced Clay SA Hosseini Chaleshtori, M Alibabaei Shahraki American Journal of Engineering and Applied Sciences 17 (3), 142-154 , 2024 2024 Citations: 2
Assessing the Effectiveness of Viscous Damper in Enhancing Steel Frame Performance Level M Alibabaei Shahraki, A Hosseini Chaleshtori 2023 Citations: 2
Seismic Performance of FTMD in High-Rise Structures Considering Uncertainties M Alibabaei Shahraki ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A … , 2025 2025 Citations: 1
Impact of soil-structure interaction on earthquake response of high-rise steel frames equipped with TMD and FTMD optimized through cloud drift optimization M Alibaabaei Shahraki, O Araz, H Ahmadi Soil Dynamics and Earthquake Engineering 208 (1), 1-19 , 2026 2026
Assessing the Impact of NTMDI on the Dynamic Response of Steel Structures with Consideration for Soil-Structure Interaction M Alibabaei Shahraki, M Nikpay, M Basili Available at SSRN 5133469 , 2025 2025
Optimization of elastoplastic-tuned mass damper parameters to reduce the story drift ratio under earthquake excitation (In Persian) M Alibabaei Shahraki, AH Hosseini chaleshtori, M Moussavi bidleh, ... 7th international conference on civil, architecture and urbanity engineering , 2023 2023
Seismic performance of Elastoplastic Tuned Mass Damper Inerter M Alibabaei Shahraki 2022