防灾减灾工程学报2025，Vol.45Issue(6)：1464-1474,11.DOI:10.13409/j.cnki.jdpme.20250430064
夹芯SMA蜂窝阻尼器的结构优化
Structural Optimization of SMA Sandwich Honeycomb Dampers
摘要
Abstract
To address the shortcomings of traditional seismic dampers,such as large residual deforma-tion and low energy dissipation efficiency after strong earthquakes,a novel nickel-titanium shape mem-ory alloy(NiTi-SMA)honeycomb sandwich damper was proposed.It adopted a three-layer composite structure.The core layer was a superelastic NiTi-SMA honeycomb plate to provide self-centering ca-pability,the intermediate layer was filled with high-damping rubber or rubber-steel plate composite material for energy dissipation,and the outer layer was equipped with buckling-restrained steel plates to ensure stability.A refined numerical model was established using ABAQUS to investigate the ef-fect of different filling material configurations on its mechanical properties.The results showed that fill-ing with high-damping rubber could significantly improve energy dissipation capacity,and it synergisti-cally exhibited excellent hysteretic performance with NiTi-SMA.Filling with steel plates could en-hance bearing capacity and initial stiffness,whose volume was positively correlated with the damper's performance without affecting the self-centering property.Circular steel plates demonstrated higher en-ergy dissipation efficiency than hexagonal ones,and variable wall thickness and fillet optimization could effectively alleviate stress concentration and improve fatigue performance.Through multi-materi-al synergy and structural optimization,this novel damper balances self-centering and high energy dissi-pation characteristics,providing a new technical solution for seismic engineering.关键词
形状记忆合金/蜂窝结构/高阻尼橡胶/阻尼器/拟静力试验Key words
shape memory alloy/honeycomb structure/high-damping rubber/damper/quasi-static test分类
建筑与水利引用本文复制引用
LIU Luwei,CAO Sasa..夹芯SMA蜂窝阻尼器的结构优化[J].防灾减灾工程学报,2025,45(6):1464-1474,11.基金项目
国家自然科学基金项目(52478151)资助 （52478151）
