A Fluid Damper Using Elastomer Vibration Energy Dissipation

Abstract

The invention relates to a fluid damper for consuming energy by using vibration of an elastomer. The fluid damper comprises connecting flanges, a guide rod, a sealing body, a main cylinder barrel, a piston and a secondary cylinder barrel; the fluid damper is connected with a main structure through the connecting flanges at two ends; the connecting flange at one end is connected with the guide rod, and the connecting flange at the other end is connected with the secondary cylinder barrel through a first nut; the piston is mounted in the middle position of the main cylinder barrel through the guide rod; the main cylinder barrel and the secondary cylinder barrel are connected through a second nut; and the main cylinder barrel is closed through the sealing body, the first nut and the second nut, and is fully filled with a damping fluid inside. The fluid damper has such advantages as simple structure, low damping fluid requirement and nonlinear energy consumption characteristic, can supply higher damping to a civil engineering structure, reduces the dynamic response of the structure, and improves the safety of the structure.

Description

Technical field [0001] The invention is a vibration damping device for engineering structures, which can be used for dynamic response control of civil engineering structures under seismic action or wind load, and in particular relates to a fluid damper that uses elastic body vibration and energy consumption. Background technique [0002] The viscous fluid damper is a passive energy dissipation and vibration reduction device, which mainly includes a cylinder, a piston arranged in the cylinder, a guide rod, a sealing body at both ends of the cylinder, and a viscous fluid filled in the cylinder. The piston of a commonly used viscous fluid damper is provided with a throttle hole. When the piston and the cylinder move relative to each other, the viscous fluid flows from one end of the piston through the throttle hole to the other end, thereby generating a velocity-dependent viscous damping force , To achieve the purpose of energy consumption. Commonly used viscous fluid dampers can g...

AI Technical Summary

Problems solved by technology

However, most of these dampers are based on the principle of throttling fluid small holes to produce damping, using fluid motion to dissipate the vibration energy transmitted by the structure, and the actual design has high requirements for the structure and production of small holes

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