Vibration isolation metamaterial device based on equivalent mass amplification and vibration isolation method

A technology of equivalent mass and metamaterials, applied in the direction of elastic shock absorbers, etc., can solve the problems of inconvenient installation and transportation, complex structure, etc., and achieve the effect of simple design, low construction precision and convenient installation

Active Publication Date: 2022-07-15
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design, installation, and transportation of seismic isolation structures using the equivalent amplification mechanism are inconvenient, and the structure is complex.

Method used

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  • Vibration isolation metamaterial device based on equivalent mass amplification and vibration isolation method
  • Vibration isolation metamaterial device based on equivalent mass amplification and vibration isolation method
  • Vibration isolation metamaterial device based on equivalent mass amplification and vibration isolation method

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Embodiment Construction

[0047] The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0048] It should be noted that, in the description of the present invention, the orientation or positional relationship indicated by the terms "top", "bottom", "inner", "outer", "upper end", "opposing side", etc. The orientation or positional relationship shown in the drawings is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present invention. Invention limitations.

[0049] like figure 1 As shown, the present invention provides a vibration isolation metamaterial device based on equivalent mass amplification, compr...

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Abstract

The invention discloses a vibration isolation metamaterial device based on equivalent mass amplification, which comprises a plurality of vibration isolation assembly structures, each vibration isolation assembly structure comprises a plurality of mass columns, a plurality of rotating shaft devices and a cross-shaped mass frame, the rotating shaft devices are welded and fixed on the tops of the mass columns, and the cross-shaped mass frames are fixed on the rotating shaft devices; the tail end of the cross-shaped mass frame is welded and fixed to the tops of the multiple rotating shaft devices. The invention provides a Rayleigh wave attenuation method based on an equivalent mass amplification mechanism. Based on the equivalent mass amplification principle, a shock insulation assembly structure is designed, a lower-frequency forbidden band is obtained, the requirement of the seismic wave field is met, and all Rayleigh waves in a band gap cannot penetrate through the barrier. According to the shock insulation assembly structure, Rayleigh waves in the band gap range are attenuated, and buildings in all areas behind a barrier can be effectively protected.

Description

technical field [0001] The present invention relates to the technical field of seismic isolation. More specifically, the present invention relates to a vibration isolating metamaterial device and a vibration isolating method that amplify the equivalent mass. Background technique [0002] The earliest seismic measures of buildings are mainly the seismic design of building structures. The working principle of this design is to use the nonlinear state of a single structure itself to store and consume seismic energy. The general method is to increase the section of the building structure and increase the reinforcement to ensure that the structure has sufficient strength, stiffness and ductility, and then enhance the seismic performance of the main structure itself to resist earthquake action. However, this method has some disadvantages, such as generally poor durability and short service life, and should be used with caution in harsh environments such as corrosiveness. Among th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/12
CPCF16F7/123F16F7/128F16F2228/04
Inventor 杜秋姣袁柯柯郭乃泉
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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