摘要
黏滞阻尼墙作为一种速度相关型阻尼器,在不同速度下阻尼力和滞回特性都不同。目前国内外对于黏滞阻尼墙的力学性能还缺乏系统完善的研究成果。现对黏滞阻尼墙模型在非牛顿幂律流体本构关系的基础上结合微元法建立阻尼力计算模型和推导更具普适性的计算公式,再基于ANSYS Fluent进行阻尼力数值模拟,定量研究了黏滞阻尼力并得到黏滞阻尼墙模型的滞回特性,两者与现有的试验结果进行比较分析,得出研究结果具有准确性和可靠性,可应用于产品研发与实际工程。
As a speed-dependent damper,the viscous damping wall has different damping force and hysteretic behavior at different speeds.There was still a lack of systematic research results on the mechanical properties of viscous damping walls at home and abroad.In this paper,based on the constitute of non-Newtonian fluid and the micro-element method,the calculation model of viscous damping wall damping force is established and a more universal formula is derived.Then the numerical simulation of damping force is based on ANSYS Fluent.The viscous damping force is numerically studied and the hysteretic behavior of the viscous damping wall model is obtained.The results show that the research has relatively reliable accuracy by the comparison between the two and the existing test results,which can be used in product development and practical engineering.
作者
石文龙
施佳成
程荣
SHI Wenlong;SHI Jiacheng;CHENG Rong(Department of Civil Engineering,Shanghai University,Shanghai 200444,China;Shanghai Steel Damper Technology Co.,Ltd.,Shanghai 200092,China)
出处
《结构工程师》
北大核心
2020年第6期59-65,共7页
Structural Engineers
关键词
黏滞阻尼墙
数值模拟
黏滞阻尼力
滞回特性
viscous damping wall
numerical simulation
viscous damping force
hysteretic behavior
