PSI - Issue 64

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ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 64 (2024) 360–367

SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Stability-Based Optimum Design of Tuned Mass Damper using Chaos Game Optimization in Pole Placement Scheme Amir Shamsaddinlou a *, Dario De Domenico a , Sina Shirgir b , Sara Majidi b SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Stability-Based Optimum Design of Tuned Mass Damper using Chaos Game Optimization in Pole Placement Scheme Amir Shamsaddinlou a *, Dario De Domenico a , Sina Shirgir b , Sara Majidi b Abstract The present work investigates the optimization of Tuned Mass Dampers (TMDs) for improving the seismic behavior of structures by considering system stability using a well-known robust Chaos Game Optimization (CGO) metaheuristic algorithm. In this regard, a new approach was introduced to locate the system's poles as an objective function in the optimum design of TMDs. In this scheme, the mechanical parameters of TMD are designed to find the pole placement of the structural system with more stability. This research presents a dynamic analysis and comparative evaluation of various cost functions — including relative controlled drift response, the transfer function (TF) of acceleration response, and pole placement scheme — to determine the most effective design for TMD parameter optimization. Structural control performance indexes are used to compare the seismic behavior of each design. The results demonstrate the cost function based on the pole placement scheme's capability to enhance TMD design, suggesting valuable theoretical and practical understandings for more resilient and efficient structural designs. © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers Keywords: Tuned Mass Dampers (TMDs); Pole Placement Scheme; Transfer Function; Seismic response; Chaos Game Optimization (CGO) 1. Introduction Reducing vibrations and improving structural integrity under dynamic loads are essential considerations of Cheng et al. (2008). Tuned Mass Dampers (TMDs) are essential in this context, presenting a passive control system through © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers a Department of Engineering, University of Messina, Messina, Italy b Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran a Department of Engineering, University of Messina, Messina, Italy b Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran Abstract The present work investigates the optimization of Tuned Mass Dampers (TMDs) for improving the seismic behavior of structures by considering system stability using a well-known robust Chaos Game Optimization (CGO) metaheuristic algorithm. In this regard, a new approach was introduced to locate the system's poles as an objective function in the optimum design of TMDs. In this scheme, the mechanical parameters of TMD are designed to find the pole placement of the structural system with more stability. This research presents a dynamic analysis and comparative evaluation of various cost functions — including relative controlled drift response, the transfer function (TF) of acceleration response, and pole placement scheme — to determine the most effective design for TMD parameter optimization. Structural control performance indexes are used to compare the seismic behavior of each design. The results demonstrate the cost function based on the pole placement scheme's capability to enhance TMD design, suggesting valuable theoretical and practical understandings for more resilient and efficient structural designs. © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers Keywords: Tuned Mass Dampers (TMDs); Pole Placement Scheme; Transfer Function; Seismic response; Chaos Game Optimization (CGO) 1. Introduction Reducing vibrations and improving structural integrity under dynamic loads are essential considerations of Cheng et al. (2008). Tuned Mass Dampers (TMDs) are essential in this context, presenting a passive control system through

* Corresponding author. Tel.: +39-344-503-1712 E-mail address: amir.shamsaddinlou@studenti.umime.it * Corresponding author. Tel.: +39-344-503-1712 E-mail address: amir.shamsaddinlou@studenti.umime.it

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers 2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers

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