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A Vibration Aging Treatment Method for Large Metal Components of Rail Transit Equipment

A metal component, vibration aging technology, applied in the field of rail transit equipment testing, to achieve the effects of strong operability, elimination of residual stress, and high elimination of efficiency

Active Publication Date: 2018-05-15
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In view of this, the object of the present invention is to provide a vibration aging treatment method for large metal components of rail transit equipment, which can solve the technical problem of quickly and effectively eliminating the residual stress of large metal components

Method used

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  • A Vibration Aging Treatment Method for Large Metal Components of Rail Transit Equipment
  • A Vibration Aging Treatment Method for Large Metal Components of Rail Transit Equipment
  • A Vibration Aging Treatment Method for Large Metal Components of Rail Transit Equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0065] as attached figure 1 As shown, a specific embodiment of a vibration aging treatment method for large metal components of rail transit equipment, comprising the following steps:

[0066] S101: installing the large metal component 1 on the vibration test bench 3;

[0067] S102: Determine the location of the vibration test control point and response point;

[0068] S103: Conduct a sinusoidal scanning vibration test on the large metal component 1;

[0069] S104: determining the resonance frequency of the large metal component 1;

[0070] S105: Perform aging treatment of fixed-frequency sinusoidal vibration at the resonance frequency point for the large metal component 1;

[0071] S106: performing broadband random vibration aging treatment on the large metal component 1;

[0072] S107: Repeat the above steps S102 to S106 to respectively complete the vibration aging treatment of the large metal component 1 in the vertical, horizontal and longitudinal directions.

[0073]...

Embodiment 2

[0095] Another specific embodiment of the vibration aging treatment method for large metal components of rail transit equipment, including the following steps:

[0096] S101: installing the large metal component 1 on the vibration test bench 3;

[0097] S102: Determine the location of the vibration test control point and response point;

[0098] S103: Conduct a sinusoidal scanning vibration test on the large metal component 1;

[0099] S104: determining the resonance frequency of the large metal component 1;

[0100] S105: performing broadband random vibration aging treatment on the large metal component 1;

[0101] S106: Perform aging treatment of fixed-frequency sinusoidal vibration at the resonance frequency point on the large metal component 1;

[0102] S107: Repeat the above steps S102 to S106 to respectively complete the vibration aging treatment of the large metal component 1 in the vertical, horizontal and longitudinal directions.

[0103] Embodiment 2 On the basis...

Embodiment 3

[0105] Embodiment 3 On the basis of the foregoing embodiments 1 and 2, the vibration aging treatment of the large metal member 1 is completed in the order of vertical → horizontal → longitudinal vibration directions, which is the preferred sequence of vibration directions in the present invention. Of course, it is also possible to change the order of vibration directions of large metal components to achieve similar effects, such as vertical → vertical → horizontal and so on.

[0106] By implementing the technical scheme of the vibration aging treatment method for large metal components of rail transit equipment described in specific embodiments of the present invention, the following technical effects can be produced:

[0107] (1) The vibration aging treatment method for large metal components of rail transit equipment described in the specific embodiments of the present invention is simple, reliable, and highly operable, and can quickly and effectively eliminate the residual s...

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Abstract

The invention discloses a vibration aging treatment method for a railway traffic equipment large metal component. The method includes the following steps that the large metal component is installed on a vibration test table; the positions of a vibration test control point and a responding point are determined; a sine scanning vibration test is performed on the large metal component; the resonant frequency of the large metal component is determined; resonant frequency point fixed-frequency sine vibration aging treatment is performed on the large metal component; wide band random vibration aging treatment is performed on the large metal component; and the vibration aging treatment in the vertical direction, the transverse direction and the longitudinal direction of the large metal component is completed. The vibration aging treatment method for the railway traffic equipment large metal component can fast and effectively eliminate the remaining stress of the large metal component.

Description

technical field [0001] The invention relates to the field of rail transit equipment testing, in particular to a vibration aging treatment method applied to large metal components of rail transit equipment. Background technique [0002] With the continuous increase of train speed and axle load, rail transit equipment is also developing towards systematization and integration. For example, the size and quality of core train equipment such as traction converters are becoming larger and larger. The residual stress of the main structure (large metal component) due to welding, cutting and other processes during the manufacturing process has a significant impact on its dimensional accuracy and load capacity, which will cause the component to be in an unstable state, thereby reducing the dimensional stability of the component sex and mechanical properties. Residual stress has many hazards. It has a huge impact on the yield limit, fatigue life, deformation, and brittle damage of met...

Claims

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Application Information

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IPC IPC(8): C21D7/02
CPCC21D7/02
Inventor 王鹏廖岳汉刘护林黄成刘国涛余锋陈彪
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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