Track board vibration-guiding vibration-isolating vibration absorber based on particle damping and phononic crystal

A phononic crystal and particle damping technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problems of the influence of the band gap characteristics of phononic crystals

Active Publication Date: 2018-12-11
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology

The existence of defect states will have an important impact on the bandgap properties of phononic crystals

Method used

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  • Track board vibration-guiding vibration-isolating vibration absorber based on particle damping and phononic crystal
  • Track board vibration-guiding vibration-isolating vibration absorber based on particle damping and phononic crystal
  • Track board vibration-guiding vibration-isolating vibration absorber based on particle damping and phononic crystal

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specific Embodiment approach 1

[0029] Specific implementation mode one: combine Figure 1-Figure 5 Explain that a track plate vibration-guiding vibration-isolation absorber based on particle damping and phononic crystals in this embodiment includes a sound insulation plate 1, a sound guide plate 2, a vibration-absorbing box 3, and a localized phononic crystal scatterer 4 .

[0030] Wherein, the sound guide plate 2 is installed under the track, and the vibration-absorbing box 3 is arranged on the sound guide plate 2 and between the two tracks through the spring A. The sound insulation panel 1 is connected to the edge of the sound panel 2 . The localized phononic crystal scatterer 4 is fixed on the inner side of the sound insulation board 1 and the upper side of the sound guide board 2 .

[0031] The localized phonon crystal scatterers 4 on the sound insulation board 1 are arranged in such a way that, compared with the uniform distribution, it removes some localized phonon crystal scatterers 4 and removes t...

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Abstract

The invention aims to provide a track board vibration-guiding vibration-isolating vibration absorber based on particle damping and a phononic crystal. The track board vibration-guiding vibration-isolating vibration absorber comprises a sound insulating plate, a sound guide plate, a vibration absorbing box, and a localized phononic crystal scatterer. The sound insulating plate and the sound guide plate are assembled together by a matrix and a 'point defect' localized phononic crystal vibration absorbing component through periodic uniform distribution. The vibration absorbing box is a dual-particle damping vibration absorber, and fixed on the sound guide plate through a spring. The track board vibration-guiding vibration-isolating vibration absorber is simple in whole structure, convenient to manufacture, has the good vibration and noise reduction effects to wheel track vibration and noise caused by an uneven rail track, lower requirements to a working environment, and can be used for reducing the noise generated by wheels of a high-speed train, improving noise and vibration performance of the high-speed train wheels, reducing the effect to the surrounding environment, and improvingthe working environment of workers and the like.

Description

technical field [0001] The invention relates to a vibration absorber, which belongs to the technical field of vibration noise reduction, in particular to a railway train track vibration absorber based on particle damping and phononic crystals. Background technique [0002] Among the existing vibration control measures, it needs to be understood that the vibration absorption isolation cannot completely isolate the vibration, but can only isolate or absorb part of it, so that the outgoing vibration meets our use or specification requirements. [0003] The dynamic vibration absorber is an important vibration damping device in the field of vibration control, and has been widely used in the industry. From the perspective of practicality, it is required that the dynamic vibration absorber is not sensitive to the influence of environmental factors such as temperature changes, and it is also easy to install. The damping vibration absorber is to dissipate energy through the internal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/00
CPCF16F7/00
Inventor 张凌张运来杨舟冯青松辛伟
Owner EAST CHINA JIAOTONG UNIVERSITY
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