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Smart damping-varying semi-active vibration absorption rubber mat based on vibration generation

A technology of vibration power generation and variable damping, which is applied in the direction of generator/motor, non-rotating vibration suppression, electrical components, etc., can solve the problems of unsatisfactory vibration control, fixed performance parameters, narrow vibration frequency range, etc., and achieve the damping value Small, compact and easy to install

Inactive Publication Date: 2017-02-22
YANSHAN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Among them, rubber, silica gel, asphalt, etc. are the most common damping materials, but they all have the problems of fixed performance parameters and narrow controllable vibration frequency range, which cannot meet the needs of wide-frequency domain vibration control of hydraulic systems under the development trend of high speed and high pressure.

Method used

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  • Smart damping-varying semi-active vibration absorption rubber mat based on vibration generation
  • Smart damping-varying semi-active vibration absorption rubber mat based on vibration generation
  • Smart damping-varying semi-active vibration absorption rubber mat based on vibration generation

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing:

[0021] Such as figure 1 As shown, the vibration-absorbing rubber pad of the present invention includes a vibration power generation layer 1, a dielectric elastomer layer 2 and a rubber layer 3, and the vibration power generation layer, the dielectric elastomer layer, and the rubber layer are sequentially bonded to form a three-layer composite structure; The power generation layer is used as the inner layer of the vibration-absorbing rubber pad, and the rubber layer is used as the outer layer of the vibration-absorbing rubber pad.

[0022] The dielectric elastic layer is an intelligent damping material composed of silicone rubber and PHT. When the voltage value output to the dielectric elastomer through the conductive electrode plate is high, the dielectric elastomer exhibits high damping characteristics; when the voltage value output to the dielectric elastomer through the...

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Abstract

The invention relates to a smart damping-varying semi-active vibration absorption rubber mat based on vibration generation, which is formed by bonding a vibration generation layer, a dielectric elastomer layer and a rubber layer. Vibration energy of different magnitudes are converted into different voltage values by the vibration generation layer so as to change damping of the dielectric elastomer layer, so that the object of changing the damping of the rubber mat at right time and proper amount according to different vibration frequencies and amplitudes is achieved. Problems that performance parameters of common damping materials such as rubber, silica gel and asphalt are fixed, and the controllable vibration frequency range is narrow are solved, and requirements for wide frequency range vibration control of a hydraulic system under the high speed and high pressure development trend are met.

Description

technical field [0001] The invention relates to the field of vibration control of hydraulic pipelines, in particular to a vibration-absorbing rubber pad that adopts intelligent materials to realize semi-active vibration control. Background technique [0002] With the development of hydraulic technology to high speed and high pressure, the harm caused by vibration and noise in the hydraulic system is becoming more and more serious. The vibration of the hydraulic system mainly comes from two aspects: mechanical vibration and fluid vibration. The mechanical vibration mainly comes from the unbalance of the rotating parts, the vibration of the coupling and the forced vibration of the pipeline and the fuel tank; the fluid vibration mainly comes from the flow pulsation of the hydraulic pump, the vibration caused by the action of the valve components, and the cavitation caused by Vibration and vibration caused by turbulence and eddy currents. Vibration and noise affect the working...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18F16F15/08
CPCH02N2/186F16F15/08
Inventor 权凌霄张琦玮李斌
Owner YANSHAN UNIV
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