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广州大学土木与交通工程学院,广东 广州 510006
Received:30 April 2025,
Revised:2025-08-19,
Published:28 December 2025
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柳露薇,曹飒飒.夹芯SMA蜂窝阻尼器的结构优化[J].防灾减灾工程学报,2025,45(06):1464-1474.
LIU Luwei,CAO Sasa.Structural Optimization of SMA Sandwich Honeycomb Dampers[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(06):1464-1474.
柳露薇,曹飒飒.夹芯SMA蜂窝阻尼器的结构优化[J].防灾减灾工程学报,2025,45(06):1464-1474. DOI: 10.13409/j.cnki.jdpme.20250430064.
LIU Luwei,CAO Sasa.Structural Optimization of SMA Sandwich Honeycomb Dampers[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(06):1464-1474. DOI: 10.13409/j.cnki.jdpme.20250430064.
针对传统抗震阻尼器强震后残余变形大、耗能效率低的不足,提出一种新型镍钛形状记忆合金(NiTi‑SMA)蜂窝夹层阻尼器。其采用三层复合结构:核心层为超弹性NiTi‑SMA蜂窝板提供自复位能力,中间层填充高阻尼橡胶或橡胶‑钢板组合材料实现耗能,外层设防屈曲约束钢板保障稳定性。采用ABAQUS建立精细化数值模型,探究不同填充材料配置对其力学性能的影响。结果表明,高阻尼橡胶填充可显著提升耗能能力,与NiTi‑SMA协同表现出优异滞回性能;填充钢板能提高承载能力与初始刚度,其体积与性能呈正相关且不影响自定心特性;圆形钢板耗能效率优于六角形,变壁厚与圆角优化可缓解应力集中、提升疲劳性能。该新型阻尼器通过多材料协同与结构优化,兼顾自复位与高耗能特性,为抗震工程提供了新型技术方案。
To address the shortcomings of traditional seismic dampers
such as large residual deformation and low energy dissipation efficiency after strong earthquakes
a novel nickel-titanium shape memory 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 capability
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 effect of different filling material configurations on its mechanical properties. The results showed that filling with high-damping rubber could significantly improve energy dissipation capacity
and it synergistically exhibited excellent hysteretic performance with NiTi-SMA. Filling with steel plates could enhance 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 energy dissipation efficiency than hexagonal ones
and variable wall thickness and fillet optimization could effectively alleviate stress concentration and improve fatigue performance. Through multi-material synergy and structural optimization
this novel damper balances self-centering and high energy dissipation characteristics
providing a new technical solution for seismic engineering.
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