Hybrid energy dissipation vibration damping device

Abstract

The invention relates to a hybrid energy dissipation vibration damping device which comprises a container, a particle system and viscous liquid. The particle system comprises solid particles, the viscous liquid can be a single type of liquid, or a plurality of types of liquid are mixed with one another to form the viscous liquid, and the viscous liquid is accommodated inside the container; the particle system is arranged in the viscous liquid, can float in the viscous liquid or can be sunken at the bottom of the viscous liquid; the viscous liquid can vibrate in the container. A function mechanism of the hybrid energy dissipation vibration damping device is similar to a function mechanism of a tuned liquid damper, the different types of liquid rub with one another to dissipate energy, structural restoring force is provided for lateral pressure of the container, and structural amplitude is reduced; the solid particles of the particle system are collided with one another and rub with one another in the container to dissipate energy; the viscous liquid rubs with the particle system or the particles to dissipate energy. The hybrid energy dissipation vibration damping device has the advantages that merits of a particle damper and merits of the tuned liquid damper are integrated in the hybrid energy dissipation vibration damping device, and the hybrid energy dissipation vibration damping device is superior to the traditional vibration damper with a single energy dissipation principle owing to various hybrid energy dissipation mechanisms for liquid-phase rubbing energy dissipation, solid-phase collision and rubbing energy dissipation, solid-liquid-phase rubbing energy dissipation and the like.

Description

technical field [0001] The invention belongs to the technical field of energy dissipation and vibration reduction, and relates to a hybrid energy dissipation and vibration reduction damping device. Background technique [0002] According to different control mechanisms, structural vibration reduction control can be divided into passive control (including foundation vibration isolation, energy consumption vibration reduction), active control, hybrid control and semi-active control. At present, passive control is commonly used in civil engineering, such as tuned mass damper, tuned liquid damper, particle damper, etc.; specific energy dissipation devices include (1) frictional energy dissipator (2) viscous (elastic) damping Device (3) metal damper (4) self-consumption energy damping element, etc. Many scholars have done a lot of research on the principle and optimization method of these dampers. The engineering technology is mature and the vibration reduction effect is stable....

AI Technical Summary

Problems solved by technology

For example, most dampers have a single mechanism of action and limited vibration reduction capabilities; in addition, some dampers also have negative effects during use, such as particle dampers often lag in response and generate noise, and metal dampers cannot recover after yielding, etc.

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