Open Access

ARTICLE

A Stroke-Limitation AMD Control System with Variable Gain and Limited Area for High-Rise Buildings

Zuo-Hua Li¹, Qing-Gui Wu^1,*, Jun Teng^1,*, Chao-Jun Chen^1,2

1 School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
2 Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, 100872, China

* Corresponding Authors: Qing-Gui Wu. Email: ; Jun Teng. Email:

(This article belongs to the Special Issue: Computer-Aided Uncertainty Modeling and Reliability Evaluation for Complex Engineering Structures)

Computer Modeling in Engineering & Sciences 2024, 138(1), 865-884. https://doi.org/10.32604/cmes.2023.029927

Received 15 March 2023; Accepted 26 April 2023; Issue published 22 September 2023

Abstract

Collisions between a moving mass and an anti-collision device increase structural responses and threaten structural safety. An active mass damper (AMD) with stroke limitations is often used to avoid collisions. However, a stroke-limited AMD control system with a fixed limited area shortens the available AMD stroke and leads to significant control power. To solve this problem, the design approach with variable gain and limited area (VGLA) is proposed in this study. First, the boundary of variable-limited areas is calculated based on the real-time status of the moving mass. The variable gain (VG) expression at the variable limited area is deduced by considering the saturation of AMD stroke. Then, numerical simulations of a stroke-limited AMD control system with VGLA are conducted on a high-rise building structure. These numerical simulations show that the proposed approach has superior stroke-limitation performance compared with a stroke-limited AMD control system with a fixed limited area. Finally, the proposed approach is validated through experiments on a four-story steel frame.

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Keywords

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