A disc spring viscoelastic vibration damping device

Abstract

The invention discloses a viscoelastic vibration reduction and isolation device provided with belleville springs. The device comprises an upper steel plate and a lower steel plate which are symmetrically arranged, wherein an outer steel cylinder and an inner steel cylinder which are coaxially arranged are fixed on the lower steel plate, a plurality of belleville spring pairs and an annular steel cylinder which are sequentially and fixedly connected are nested outside the inner steel cylinder from bottom to top, the annular steel cylinder is fixedly connected with the upper steel plate, gaps between the belleville spring pairs and the outer steel cylinder, between the annular steel cylinder and the outer steel cylinder and between the annular steel cylinder and the inner steel cylinder are filled with viscoelastic materials, and the viscoelastic materials are connected with the belleville spring pairs, the outer steel cylinder, the inner steel cylinder and the annular steel cylinder in a vulcanization manner. The belleville springs and the viscoelastic materials are well combined through the device, the device has high stress bearing capacity and excellent energy dissipation capacity in the vibration process, enough rigidity can be provided in the vertical direction, the bearing capability requirements are met, vibration energy can be dissipated under tension, stress and torsion, and a good vibration reduction effect is realized.

Description

technical field [0001] The invention relates to a passive vibration reduction and isolation device which can be used to reduce structural vibration, in particular to a disc spring viscoelastic vibration reduction and isolation device. Background technique [0002] Engineering structures will vibrate under the action of external excitation, excessive vibration will lead to structural damage, even collapse and damage, resulting in heavy casualties and economic losses. How to effectively control the vibration of the structure and reduce the dynamic response of the structure is an important research field. At present, structural vibration control devices are mainly divided into active, semi-active, passive and hybrid control. Among them, passive control technology has been widely used in this field because of its simplicity, economy and practicality. [0003] Commonly used passive control technologies are mainly represented by various passive vibration damping devices developed...

AI Technical Summary

Problems solved by technology

However, ordinary viscoelastic dampers based on viscoelastic materials cannot provide large load-carrying capacity, so it is necessary to seek innovation in the structure of the damping device

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