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Experimental Test and Numerical Analysis of a Structure Equipped with a Multi-Tuned Liquid Damper Subjected to Dynamic Loading
International Journal of Structural Stability and Dynamics ( IF 3.6 ) Pub Date : 2020-07-02 , DOI: 10.1142/s0219455420500753 Bui Pham Duc Tuong 1 , Phan Duc Huynh 1
International Journal of Structural Stability and Dynamics ( IF 3.6 ) Pub Date : 2020-07-02 , DOI: 10.1142/s0219455420500753 Bui Pham Duc Tuong 1 , Phan Duc Huynh 1
Affiliation
Tuned liquid dampers (TLDs) have many advantages in controlling building vibrations, among which multi-tuned liquid dampers (MTLDs) appear to have better stability and effectiveness. However, the tank wall was assumed to be rigid in the past by ignoring the fluid-structure interaction (FSI) at the interface, resulting in simplified calculation for the design of the TLDs. Moreover, the fluid in the tank was considered to be separate from the structure. This paper presents two numerical methods to control the responses of the frame under the dynamic loadings: (1) the lumped mass method for quickly designing the TLDs, and (2) the finite volume method/finite element method (FVM/FEM) for analyzing the fluid and solid domains of the TLDs in a single computational 3D model. In addition, the multi-field interaction between the structure-fluid-tank walls is considered by solving the coupling equations at the interfaces. A steel frame is fitted with an MTLD and tested experimentally on a shaking table to investigate its dynamic response. Numerical results are verified with the experimental ones, which show good agreement.
中文翻译:
动态加载多调谐液体阻尼器结构的试验试验与数值分析
调谐液体阻尼器(TLD)在控制建筑物振动方面具有许多优势,其中多调谐液体阻尼器(MTLD)似乎具有更好的稳定性和有效性。然而,过去通过忽略界面处的流固耦合 (FSI),假设罐壁是刚性的,从而简化了 TLD 设计的计算。此外,罐中的流体被认为是与结构分离的。本文提出了两种数值方法来控制框架在动态载荷下的响应:(1)用于快速设计 TLD 的集中质量法,以及(2)用于分析的有限体积法/有限元法(FVM/FEM)单个计算 3D 模型中的 TLD 的流体和固体域。此外,通过求解界面处的耦合方程来考虑结构-流体-罐壁之间的多场相互作用。钢架装有 MTLD,并在振动台上进行实验测试,以研究其动态响应。数值结果与实验结果进行了验证,显示出良好的一致性。
更新日期:2020-07-02
中文翻译:
动态加载多调谐液体阻尼器结构的试验试验与数值分析
调谐液体阻尼器(TLD)在控制建筑物振动方面具有许多优势,其中多调谐液体阻尼器(MTLD)似乎具有更好的稳定性和有效性。然而,过去通过忽略界面处的流固耦合 (FSI),假设罐壁是刚性的,从而简化了 TLD 设计的计算。此外,罐中的流体被认为是与结构分离的。本文提出了两种数值方法来控制框架在动态载荷下的响应:(1)用于快速设计 TLD 的集中质量法,以及(2)用于分析的有限体积法/有限元法(FVM/FEM)单个计算 3D 模型中的 TLD 的流体和固体域。此外,通过求解界面处的耦合方程来考虑结构-流体-罐壁之间的多场相互作用。钢架装有 MTLD,并在振动台上进行实验测试,以研究其动态响应。数值结果与实验结果进行了验证,显示出良好的一致性。