新型自复位摩擦耗能阻尼器的设计及数值模拟分析

常召群; 刘伯权; 韩萌; 白涛; 邢国华; 王双兵

doi:10.13204/j.gyjzG20080402

新型自复位摩擦耗能阻尼器的设计及数值模拟分析

doi: 10.13204/j.gyjzG20080402

长安大学建筑工程学院, 西安 710061

基金项目:

国家自然科学基金项目（51578077）；陕西省技术创新引导专项（基金）项目（2019CGHJ-06）；新疆自治区区域协同创新专项项目（2019E0231）；中央高校基本科研业务费资助项目（300102288302，300102288710）。

详细信息

作者简介:
常召群,男,1992年出生,博士研究生。

通讯作者:
邢国华,ghxing@chd.edu.cn。

计量
- 文章访问数: 111
- HTML全文浏览量: 9
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2020-08-04
- 网络出版日期: 2022-01-11

DESIGN AND NUMERICAL ANALYSIS OF AN INNOVATIVE SELF-CENTERING FRICTION DAMPER

School of Civil Engineering, Chang'an University, Xi'an 710061, China

摘要

摘要: 利用形状记忆合金（SMA）的超弹性性能设计出了一种新型的自复位摩擦耗能阻尼器，该阻尼器主要由基于大直径SMA棒的自复位装置和摩擦耗能装置两大部分组成，其构造简单、传力明确。为了验证该阻尼器的有效性及可靠性，首先在常温下对大直径SMA棒（10 mm）开展滞回性能试验研究，其次利用ABAQUS数值分析软件建立阻尼器的有限元数值模型，分析不同位移幅值、摩擦力、SMA预拉力等变量下，阻尼器等效刚度、单位循环耗能量、等效阻尼比和残余变形比等力学参数的变化规律。研究结果表明：该新型自复位摩擦耗能阻尼器具有良好的自复位能力和耗能能力，可通过改变摩擦力和SMA预拉力以调控阻尼器残余变形的大小。
- 形状记忆合金棒 /
- 超弹性 /
- 自复位摩擦阻尼器 /
- 残余变形 /
- 数值模拟
Abstract: An innovative self-centering friction damper was proposed by utilizing the superelastic property of shape-memory alloy (SMA). The damper with a simple structural configuration and clear load-transfer mechanism, consisted of the self-centering device based on large size SMA bars and frictional energy-dissipation devices. To verify the effectiveness and reliability, the experiment of SMA bars with a diameter of 10 mm subjected to cyclic loads was conducted. Then the numerical model of the damper was constructed by finite element analysis software ABAQUS. The change laws of equivalent stiffness, the energy-dissipation per cycle, the equivalent damping ratio and the residual deformation ratio of the damper were discussed in the different displacement amplitudes, friction and prestressing forces of SMA bars. The simulation results showed that the innovative friction damper exhibited a good self-centering and energy-dissipation capability. The residual deformation of the damper was controlled by the friction and the prestressing force of SMA bars.
- shape-memory alloy bar /
- superelasticity /
- self-centering friction damper /
- residual displacement /
- numerical simulation

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参考文献(15)

[1]	程选生, 贾传胜, 杜修力. 消能减震技术在结构抗震加固改造中的应用[J]. 土木工程学报, 2012, 45(增刊1):253-257.
[2]	周云, 商城豪, 张超. 消能减震技术研究与应用进展[J]. 建筑结构, 2019, 49(19):33-48.
[3]	DOLCE M, CARDONE D, MAMETTO R. Implementation and Testing of Passive Control Devices Based on Shape Memory Alloys[J]. Earthquake Engineering and Structural Dynamics, 2000, 29(7):945-968.
[4]	左晓宝, 李爱群, 倪立峰, 等. 一种超弹性SMA复合阻尼器的设计与试验[J]. 东南大学学报, 2004, 34(4):459-463.
[5]	LI H, MAO C X, QU J P. Experimental and Theoretical Study on Two Types of Shape Memory Devices[J]. Earthquake Engineering and Structural Dynamics, 2008, 37:407-426.
[6]	SILWAL B, MICHAEL R J, OZBULUT O E. A Superelastic Viscous Damper for Enhanced Seismic Performance of Steel Moment Frames[J]. Engineering Structures, 2015, 105:152-164.
[7]	凌育洪, 彭辉鸿, 张帅. 一种新型SMA阻尼器及其减震性能[J]. 华南理工大学学报, 2011, 39(6):119-125.
[8]	李宏男, 钱辉, 宋钢兵. 一种新型SMA阻尼器的试验和数值模拟研究[J]. 振动工程学报, 2008, 21(2):179-184.
[9]	任文杰, 李宏男, 宋钢兵, 等. 新型自复位SMA阻尼器对框架结构减震控制的研究[J]. 土木工程学报, 2013, 46(6):14-20.
[10]	孙彤, 李宏男. 新型多维形状记忆合金阻尼器的试验研究[J]. 工程力学, 2018, 35(3):178-185.
[11]	刘明明, 李宏男, 付兴. 一种新型自复位SMA-剪切型铅阻尼器的试验及其数值分析[J]. 工程力学, 2018, 35(6):52-67.
[12]	黄宙, 李宏男. 自复位放大位移型SMA阻尼器优化设计方法研究[J]. 工程力学, 2019, 36(6):202-210.
[13]	李灿军, 周臻, 谢钦. 摩擦耗能型SMA杆自复位梁柱节点滞回性能分析[J]. 工程力学, 2018, 35(4):115-123.
[14]	DURAN B, TUNABOYU O,ATLI K,et al. Seismic Performance Upgrading of Substandard RC Frames Using Shape Memory Alloy Bars[J]. Smart Materials and Structures,2019, 28(8).https//doi.org/10.1088/1361-665X/ab28f6.
[15]	ISSA A S, ALAM M S. Experimental and Numerical Study on the Seismic Performance of a Self-Centering Bracing System Using Closed-Loop Dynamic (CLD) Testing[J]. Engineering Structures, 2019, 195:144-158.