粘弹性
阻尼器
消散
结构工程
材料科学
振动
分数阶微积分
机械
工程类
数学
物理
复合材料
数学分析
声学
热力学
作者
Yeshou Xu,Zhao‐Dong Xu,Ying‐Qing Guo,Teng Ge,Chao Xu,Xing‐Huai Huang
出处
期刊:Journal of Vibration and Acoustics
日期:2019-01-16
卷期号:141 (3)
被引量:31
摘要
Viscoelastic dampers are one of the most popular earthquake mitigation devices for building structures with a large number of applications in civil engineering. The seismic performance of viscoelastic dampers is greatly affected by viscoelastic materials. The present paper addresses the theoretical and experimental studies of the viscoelastic damper. The regular polyhedron chain network models for viscoelastic materials are proposed based on the molecular chain network microstructures and the temperature–frequency equivalent principle. Several dynamic property tests for the viscoelastic damper at different temperatures, frequencies, and displacements are carried out, and the proposed models are verified by comparing the numerical and experimental results. The comparisons show that the viscoelastic damper has perfect energy dissipation capacity, and the regular polyhedron chain network models can well describe the mechanical properties of the viscoelastic damper at different environmental temperatures and excitation frequencies.
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