A shock-absorbing wheel based on phononic crystals

A phononic crystal and wheel technology is applied in the field of shock-absorbing wheels, which can solve problems such as affecting the driving safety of vehicles, large elastic deformation of wheels, and differences in wheel deformation, and achieve the effects of good shock absorption, good stiffness and simple structure.

Pending Publication Date: 2018-12-11
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above-mentioned prior art can make the wheel itself have a damping function, this function needs to be realized through the elastic deformation of the wheel. If the wheel is under too much force, the wheel will undergo excessive elastic deformation or even plastic deformation. Deformation, if the stress on several wheels is uneven, the deformation of each wheel will be very different, and even cause the vehicle to overturn in severe cases, which seriously affect the driving safety of the vehicle

Method used

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  • A shock-absorbing wheel based on phononic crystals
  • A shock-absorbing wheel based on phononic crystals
  • A shock-absorbing wheel based on phononic crystals

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Embodiment approach

[0028] figure 1 with figure 2 Represents the first embodiment of the present invention, which is mainly applicable to non-motorized vehicles. image 3 with Figure 4 represents a second embodiment of the invention, which is primarily applicable to motor vehicles.

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Abstract

The invention discloses a shock-absorbing wheel based on phononic crystal, which includes a tire, a wheel rim, spokes, a wheel hub, a wheel shaft bore, a local resonator, a bragg scatter type phononiccrystal ring, and an end cap, wherein the local resonator is symmetrically distributed on both ends of the same radial size portion on the spoke, the local resonators are arranged at equal intervalsin the radial direction of the spokes, the spokes and the local resonators periodically arranged thereon forming a local resonance type phononic crystal structure, and the bragg scattering type phononic crystal ringis a layered periodic structure formed by alternately closely fitting a matrix and a scatterer having a large density difference. The invention utilizes the suppression of elastic wavepropagation by the phononic crystal whose frequency falls within the frequency range of its band gap to reduce vibration. The invention has the advantages of simple structure, high strength, good rigidity, convenient manufacture and installation, and good shock absorption effect.

Description

technical field [0001] The invention relates to the technical field of wheels, in particular to a shock-absorbing wheel based on phononic crystals. Background technique [0002] Wheels are an important part of all vehicles, rotating components that carry loads between tires and axles. Generally, the wheel is a rigid structure as a whole. Although most of the wheels are equipped with tires, the damping effect of the tires is very limited. At present, the shock absorption of vehicles is not mainly achieved by wheels, but by installing shock absorbers and other structures. This makes the structure of the frame more complicated and the maintenance cost increases. If the wheel itself has good shock absorption performance, the overall shock absorption performance of the vehicle will be greatly improved. [0003] In the prior art, the wheel itself has a damping function mainly through the elastic deformation of the wheel. For example, the Chinese Invention Patent Application Pub...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B60B19/00
CPCB60B19/00B60B2900/131
Inventor吴宏章顾云风倪晓宇
OwnerNANJING FORESTRY UNIV