Distributed viscous damping energy dissipation device and energy dissipation method
A technology of viscous damping and energy-dissipating devices, which is applied in the direction of springs/shock absorbers, shock absorbers, solid shock absorbers, etc., can solve problems such as oil leakage, large volume and mass, and limited damping energy dissipation performance, and achieve suppression Effects of vibration of the main structure, improvement of damping output and energy dissipation capacity, and reduction of airtight performance requirements of the device
Active Publication Date: 2022-03-11
SOUTHEAST UNIV
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Problems solved by technology
[0003] However, traditional viscous dampers have large volume and mass, limited damping energy consumption performance, and often have oil leakage problems, which are the key bottlenecks for their popularization and application.
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[0042] In order to facilitate the understanding of the structure of the present invention, the following description will be made in conjunction with the accompanying drawings and embodiments.
[0043] Such as figure 1 and figure 2 As shown, the device is composed of an outer sleeve 1, a porous energy-dissipating support 2 and a dowel bar 3; wherein, the upper and lower ends of the outer sleeve 1 are provided with threads, filled with viscoelastic fluid material, and the porous energy-dissipating support is outside the upper and lower end plates. with corresponding thread
[0044] The outer sleeve 1 is connected with the upper and lower end plates through threads, filled with viscoelastic fluid, and the porous energy-dissipating support is immersed in the fluid, and is divided into upper and lower symmetrical parts by the middle partition 23. The support 22 is respectively connected with the middle partition 23 and the upper and lower end plates. The middle partition 23 is ...
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The invention discloses a distributed viscous damping energy dissipation device and a working method thereof. The device is composed of an outer sleeve, a porous energy dissipation support and a dowel rod. Among them, viscoelastic fluid is filled in the outer sleeve, and the porous energy-dissipating support is arranged in the outer sleeve and immersed in the fluid. There is a middle partition, which makes the two parts of the porous energy-dissipating support separate when the dowel rod is stressed. Deformation occurs under tension and pressure, and then the volume of the holes in the porous energy-dissipating support changes, thereby absorbing and extruding the viscoelastic fluid to dissipate energy. The device realizes distributed viscous energy dissipation by simultaneously generating viscoelastic fluid flow through a large number of holes located in the porous energy dissipation support. It has the advantages of small size, large output, strong energy dissipation capacity, simple manufacture, and adjustable stiffness, which is conducive to energy dissipation. Industrial applications of shock absorption technology.
Description
technical field [0001] The invention mainly relates to the field of structural vibration control, in particular to a distributed viscous damping energy dissipation device and an energy dissipation method. Background technique [0002] Energy dissipation and shock absorption technology is a popular vibration control technology. In particular, viscous energy dissipators are widely used in vibration control in many fields such as machinery, aviation, and ships due to their simple structure, no maintenance, and long service life. In particular, a large number of viscous energy dissipators are used in In high-rise building structures in earthquake-prone areas. [0003] However, traditional viscous dampers have large volume and mass, limited damping energy dissipation performance, and often have oil leakage problems, which are the key bottlenecks for their popularization and application. How to increase the output of viscous energy dissipators and improve their energy dissipatio...
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IPC IPC(8): F16F9/30F16F9/32
CPCF16F9/30F16F9/3207F16F2222/04F16F2224/048
Inventor 张中文徐赵东
Owner SOUTHEAST UNIV