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High-frequency noise reduction restraining and damping wheel containing slits

A technology of constraining damping and wheels, which is applied to wheels, wheels characterized by rail running parts, vehicle parts, etc., can solve the problems that the effect of vibration and noise reduction needs to be improved, and local damage needs to be replaced as a whole, so as to achieve rich vibration modes , Improve shear energy consumption and suppress vibration

Inactive Publication Date: 2016-05-11
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the technical problems that the vibration and noise reduction effect of the existing constrained damping layer wheel in the high frequency band needs to be improved and the local damage needs to be replaced as a whole, a high-frequency noise reduction constrained damping wheel with slots is provided.

Method used

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  • High-frequency noise reduction restraining and damping wheel containing slits
  • High-frequency noise reduction restraining and damping wheel containing slits
  • High-frequency noise reduction restraining and damping wheel containing slits

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as Figure 1-7 , Figure 9 with Figure 10 As shown, a high-frequency noise-reducing constrained damping wheel with slits includes the standard wheel 1 and the constrained damping layer located outside the standard wheel, and the constrained damping layer includes a bonded damping layer 2 and a constraining layer 3, the constraining layer 3 is bonded to the standard wheel 1 through the damping layer 2, the damping layer 2 has 10 slits I21, and the constraining layer 3 has slits I21 Corresponding slot II31.

[0036] Described standard wheel 1 comprises wheel rim 11, wheel spoke 12 and wheel hub 13, and both sides of described wheel spoke 12 all have the annular groove 121 that takes the axis of described standard wheel 1 as axis, and the groove bottom 1211 of described annular groove 121 Perpendicular to the axis of the standard wheel 1, both sides of the groove bottom 1211 have concave arc groove walls 1212, the inner diameter of the annular groove 121 is equal ...

Embodiment 2

[0045] Such as Figure 1-6 , Figure 8 , Figure 9 , Figure 11As shown, a high-frequency noise-reducing constrained damping wheel with slits includes the standard wheel and the constrained damping layers respectively located on both sides of the standard wheel, and the constrained damping layer includes a bonded damping layer Layer 2 and constraining layer 3, the constraining layer 3 is bonded to the standard wheel 1 through the damping layer 2, the damping layer 2 has 10 slots I21, and the constraining layer 3 has Ⅰ21 corresponds to the slit Ⅱ31.

[0046] Described standard wheel 1 comprises wheel rim 11, wheel spoke 12 and wheel hub 13, and both sides of described wheel spoke 12 all have the annular groove 121 that takes the axis of described standard wheel 1 as axis, and the groove bottom 1211 of described annular groove 121 Perpendicular to the axis of the standard wheel 1, both sides of the groove bottom 1211 have concave arc groove walls 1212, the inner diameter of ...

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Abstract

The invention discloses a high-frequency noise reduction restraining and damping wheel containing slits. The wheel comprises a standard wheel and a wheel and damping layer positioned on at least one side of the standard wheel, wherein the wheel and damping layer comprises a damping layer and a restraining layer which are adhered into a whole body; the restraining layer is adhered to the standard wheel through the damping layer; the damping layer comprises a plurality of slits I; the restraining layer comprises a plurality of slits II corresponding to the slits I. The wheel performs slitting treatment on the restraining layer and the damping layer on the basis of a restraining and damping wheel, thereby properly restraining the high-frequency section vibration of the wheel, and greatly reducing noises produced in high-frequency section of the wheel; compared with an untreated restraining and damping wheel, the wheel has the advantages that the restraining layer and the damping layer are divided into different zones, during the later period of checking and maintenance, the only thing to do is to change a damaged restraining layer and damping layer in a certain zone, and the wheel is more time-saving and labor-saving to maintain, and is beneficial to material saving.

Description

technical field [0001] The invention relates to the design field of vibration reduction and noise reduction for high-speed trains, in particular to a high-frequency noise reduction constraint damping wheel with slots. Background technique [0002] The rapid development of high-speed railways in recent years has resulted in more and more serious noise pollution. When the train is running at high speed, the noise of the wheel-rail system is the main noise source of the train. The sleepers, rails and wheels in the wheel-rail system have different noise contributions in different frequency ranges: below 300Hz, the sleeper is the main noise source; in the range of 500Hz-2000Hz, the rail noise plays a dominant role; Noise is most important. As the train speed increases, the high-frequency noise becomes more and more obvious, so it is particularly important to suppress the noise radiation of high-frequency wheels in a targeted manner. [0003] Existing ways to reduce wheel vibra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B17/00
CPCB60B17/0024B60B2900/131
Inventor 陈文炯田晓琳刘书田
Owner DALIAN UNIV OF TECH
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