A spring damping cooperative vibration isolation/shock reduction device

Abstract

The invention provides a spring damping synergistic vibration / shock isolating and reducing device. The spring damping synergistic vibration / shock isolating and reducing device includes an upper steelplate, a lower steel plate, a spiral spring clamped and installed between the steel plates and a barbed-type viscoelastic cylinder damper placed in the spiral spring. The barbed-type viscoelastic cylindrical damper includes an upper inner sleeve, a lower inner sleeve, a lower outer sleeve, a viscoelastic damping layer and a position controlling plate, wherein the upper inner sleeve is fixed to theupper steel plate, the lower inner sleeve and the lower outer sleeve are installed in a sleeved mode coaxially, the viscoelastic damping layer is arranged between the lower inner sleeve and the lowerouter sleeve in a clamped mode, and the position controlling plate is hooped in the lower inner sleeve in the clamped mode along the section. The outer diameter of the upper inner sleeve is less thanthe inner diameter of the lower inner sleeve, and the inner periphery of the bottom end of the upper inner sleeve is provided with upwards-arranged barbs extending upwards obliquely. The outer periphery of the top end of the lower inner sleeve is provided with downwards-arranged barbs extending downwards obliquely. After the upper inner sleeve slides to the lower inner sleeve, the upwards-arranged barbs and the downwards-arranged barbs are engaged and locked, the bottom surfaces of the inner sleeves abut against the position controlling plate. According to the spring damping synergistic vibration / shock isolating and reducing device, a complete spring damping synergistic working system suitable for vertical excitation bearing of a vertical load bearing structure is designed, the problem oflow damping of the system is solved, and excellent vibration isolating and reducing effects are played.

Description

technical field

[0001] The invention relates to a structure vibration control device, in particular to a vertical vibration isolation / shock reduction device. Background technique

[0002] Structural vibration control is a new type of anti-vibration / seismic measure, which consumes or isolates vibration / vibration energy by setting vibration reduction / vibration / vibration / vibration / seismic devices in the structure, or applies external energy to counteract the impact of external excitation on the structure. The role of structure. As a common form of passive vibration control, vibration isolation / vibration isolation devices are widely used because of their relatively simple structure, no need for manual intervention, strong robustness and stability.

[0003] In the field of building vibration control, vertical vibration isolation has always been a difficult problem to solve. In design codes, conventional buildings do not need to consider vertical seismic action under frequent ea...

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