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Semi-active optimization control of space grid model with self-reset piezoelectric friction damper

Yang Liu ^*| Meng Zhan | Guangyuan Weng | Sheliang Wang

College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

School of Civil Engineering ＆ Geodesy, Shaanxi College of Communication Technology, Xi’an 710018, China

College of Architecture Engineering, HuangHuai University, Zhumadian 463000, China

Mechanical Engineering College Xi’an Shiyou University, Xi’an 710065, China

Corresponding Author Email:

yangliu1106@163.com

Received:

| |

Accepted:

| | Citation

503-515.pdf

OPEN ACCESS

https://acsm.revuesonline.com/accueil.jsp

Abstract:

This paper attempts to reduce the seismic hazards of building structure with an intelligent material called piezoelectric ceramics (PC). Specifically, the author designed a self-reset piezoelectric friction damper (SRPFD) based on laminated PC, and the number and position of dampers were optimized with genetic algorithm (GA) on the Matlab. On this basis, a large 24m×24m square pyramid space truss structure model was created, and the GA was optimized by the Gads toolbox. Then, 60 SRPFDs were selected to analyze the seismic response of the building structure. The results show that the control effect of the SRPFDs was improved by nearly 32.5% after the optimization. This research findings shed new light on semi-active optimization control of space grid models

Keywords:

genetic algorithm (GA), Optimal layout, Piezoelectric friction damper (PFD), Semi-active control

1. Introduction

2. Structure of SRPFD and damping force model

3. Control strategy

4. Structure model and optimization algorithm

5. Semi-active optimization control

6. Conclusions

Acknowledgment

The authors gratefully acknowledge the support of the Scientific Research Program Funded by Shaanxi Provincial Education Department (Program No.17JK0072).

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Semi-active optimization control of space grid model with self-reset piezoelectric friction damper