Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental study on the dynamic performance of a winding rope fluid viscous damper
Highlights A combination of friction dampers and fluid viscous dampers. Innovative use of the amplification principle of the winding rope. Amplify the damping force of fluid viscous dampers by more than three times. Same hysteresis characteristics as fluid viscous dampers. The proposed theoretical formulation predicts the damping force accurately.
Abstract This study proposed a winding rope fluid viscous damper (WRFVD) using the winding ropes to amplify the damping force of a fluid viscous damper. To investigate the dynamic performance of the WRFVD, four different prototypes were fabricated and tested under a series of sinusoidal loading protocols. Experimental results demonstrated that the WRFVD is a velocity-dependent damping device with significant and stable energy dissipation capacity. The winding rope amplification mechanism can effectively amplify the damping force of the fluid viscous damper by 3 to 6 times, and amplify the energy dissipation of the fluid viscous damper by 3.5 to 6.9 times. After 30 cycles of fatigue loading, the maximum damping force and the energy dissipation capacity of the WRFVD almost not decayed. The damping force of the WRFVD had a linear relationship with the damping force of fluid viscous damper with the coefficient of β, and β was only related to the construction of the WRFVD itself. The theoretical model of damping force based on the Maxwell-β nonlinear model could reflect the mechanical properties of the WRFVD well, and the theoretical and experimental hysteresis curves are in good agreement.
Experimental study on the dynamic performance of a winding rope fluid viscous damper
Highlights A combination of friction dampers and fluid viscous dampers. Innovative use of the amplification principle of the winding rope. Amplify the damping force of fluid viscous dampers by more than three times. Same hysteresis characteristics as fluid viscous dampers. The proposed theoretical formulation predicts the damping force accurately.
Abstract This study proposed a winding rope fluid viscous damper (WRFVD) using the winding ropes to amplify the damping force of a fluid viscous damper. To investigate the dynamic performance of the WRFVD, four different prototypes were fabricated and tested under a series of sinusoidal loading protocols. Experimental results demonstrated that the WRFVD is a velocity-dependent damping device with significant and stable energy dissipation capacity. The winding rope amplification mechanism can effectively amplify the damping force of the fluid viscous damper by 3 to 6 times, and amplify the energy dissipation of the fluid viscous damper by 3.5 to 6.9 times. After 30 cycles of fatigue loading, the maximum damping force and the energy dissipation capacity of the WRFVD almost not decayed. The damping force of the WRFVD had a linear relationship with the damping force of fluid viscous damper with the coefficient of β, and β was only related to the construction of the WRFVD itself. The theoretical model of damping force based on the Maxwell-β nonlinear model could reflect the mechanical properties of the WRFVD well, and the theoretical and experimental hysteresis curves are in good agreement.
Experimental study on the dynamic performance of a winding rope fluid viscous damper
Zhang, Wenxue (Autor:in) / Zhang, Cheng (Autor:in) / Su, Lijun (Autor:in) / Zheng, Yongrui (Autor:in) / Du, Xiuli (Autor:in)
Engineering Structures ; 281
06.02.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| Taylor & Francis Verlag | 2023
| SAGE Publications | 2022
| Springer Verlag | 2020