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Flexible electronic device for wheel-rail force testing, and preparation method thereof

An electronic device and wheel-rail force technology, which is applied in the direction of wheel rim measurement/measurement, can solve problems such as difficult to do online monitoring of wheel-rail interaction relationship, improve health detection level and safety performance, realize structural health monitoring, good The effect of soft properties

Inactive Publication Date: 2020-07-24
EAST CHINA JIAOTONG UNIVERSITY +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The current technology for testing the wheels is offline, it is difficult to do a good job in the online monitoring of the wheel-rail interaction relationship during the train operation, flexible electronic technology will provide technical support for the online monitoring of the wheel-rail interaction relationship, embedded on the wheel or track surface , to improve the level of safe running, structural health monitoring and maintenance of high-speed trains

Method used

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  • Flexible electronic device for wheel-rail force testing, and preparation method thereof
  • Flexible electronic device for wheel-rail force testing, and preparation method thereof
  • Flexible electronic device for wheel-rail force testing, and preparation method thereof

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0029] see figure 1 , the flexible multifunctional electronic device is attached to the curved surface of the wheel web structure for on-line monitoring of the wheel-rail force. The upper left figure provides a high-speed train wheel web surface structure 13 and track 12 (below the track is The detection device for the functional relationship between the support of the sleeper 11) integrates a ...

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Abstract

The invention discloses a flexible multifunctional electronic device for wheel-rail force online monitoring, and relates to the field of rail transit wheel-rail relation and flexible electronics. Thedevice comprises a temperature sensing function module, a dynamic strain sensing function module and a piezoelectric vibration sensing function module. All the modules are integrated on the same flexible substrate, the device is installed on a wheel spoke curved surface, and keeps conformal contact with the wheel spoke curved surface, and the acting force between wheel rails is calculated by utilizing dynamic strain and vibration information of spoke plates, so real-time monitoring of the wheel-rail contact state (temperature, dynamic strain and vibration information) of the high-speed train is achieved, the flexible multifunctional electronic device is prepared through micro electro mechanical machining and a laser lift-off technology, and technical guarantee is provided for monitoring application of the flexible electronic technology in the wheel-rail relation.

Description

technical field [0001] The invention relates to the field of rail transit wheel-rail relationship and flexible electronics, in particular to a flexible electronic device for wheel-rail force testing and a preparation method thereof. Background technique [0002] The wheel-rail relationship largely determines the comfort, safety, and environmental friendliness of high-speed trains. The irregularities of the track and the periodic vibration of the vehicle itself are directly reflected in the action of the wheels and rails, resulting in friction between the wheels and rails. The role is also dynamic. Therefore, the state monitoring of the wheel-rail action has always been an important issue in the operation of the train. The structural health monitoring technology of the wheel-rail has broad application prospects, especially the online health monitoring technology. Technical Support. [0003] At present, the detection technology of wheel-rail relationship is mainly divided int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61K9/12
CPCB61K9/12
Inventor 董文涛黄永安刘林芽王晓明姚道金
Owner EAST CHINA JIAOTONG UNIVERSITY
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