Drag and noise reducing high-speed train pantograph based on multi-factor coupling bionics

A technology for high-speed trains and pantographs, used in current collectors, motor vehicles, electric vehicles, etc., can solve problems such as difficulty in reducing drag and noise reduction, and achieve the effects of being easy to implement, simple to manufacture, and reducing aerodynamic noise.

Pending Publication Date: 2018-11-23
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two types of pantographs only use a bionic structure for drag reduction and noise reduction, and it is difficult to achieve significant drag and noise reduction effects

Method used

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  • Drag and noise reducing high-speed train pantograph based on multi-factor coupling bionics
  • Drag and noise reducing high-speed train pantograph based on multi-factor coupling bionics
  • Drag and noise reducing high-speed train pantograph based on multi-factor coupling bionics

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Embodiment Construction

[0022] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] as attached figure 1 Shown, the present invention mainly is made up of insulator 1, underframe 2, lower arm bar 3, upper arm bar 4, bow head 5, support bar 6.

[0024] as attached figure 2 As shown, the lower arm 3 distributes spherical protrusion structures 3-1 on both sides of the flow-around. The spherical protrusion structure 3-1 is distributed on both sides of the incoming flow direction, and has an effect on the flow around the rod; the spherical protrusion structure 3-1 is uniformly distributed in a strip along the shaft axis, with a height of 3-6mm and a diameter of 5-10mm , spacing 5-20mm.

[0025] as attached image 3 As shown, the upper arm 4 is distributed with sawtooth groove structures 4-1 on the windward side surface, which rectifies the incoming flow; the sawtooth groove structures 4-1 are closely arranged along t...

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Abstract

The invention discloses a drag and noise reducing high-speed train pantograph based on multi-factor coupling bionics. The drag and noise reducing high-speed train pantograph mainly consists of an insulator, an underframe, a lower arm lever, an upper arm lever, a pantograph head and a support lever, wherein spherical protuberance structures are distributed on two side surfaces around the flow of the lower arm lever; sawtooth groove structures are distributed on the surface of the windward side of the upper arm lever; columnar protuberance structures are distributed on the forward windward surface of the straight part of the pantograph; flat through hole structures are distributed between adjacent columnar protuberance structures; a circular through hole structure is arranged at the bent pantograph horn part; sawtooth stripe structures are distributed on the whole lower surface of the pantograph head; annular sawtooth structures are distributed on the middle straight lever of the supportlever, and non-uniform penetration structures are arranged on the bent lever parts on two sides. According to the drag and noise reducing high-speed train pantograph disclosed by the invention, by adopting a plurality of bionic coupling element structures, mutual coupling between the bionic units realizes the effects of rectification and control of boundary layer separation on the pantograph surface so as to remarkably reduce air resistance and aerodynamic noise.

Description

technical field [0001] The invention belongs to the technical field of rail train equipment, and in particular relates to a drag-reducing and noise-reducing high-speed train pantograph based on multiple coupling bionics. Background technique [0002] High-speed trains have the advantages of high transportation efficiency, energy saving and environmental protection, safety and convenience, and low transportation costs. They have triggered a profound transportation revolution in the world. However, with the increase of train speed, the noise caused by the railway is also increasing, which will have a serious impact on the surrounding environment along the line. The noise sources of railways mainly include wheel-rail noise, aerodynamic noise, and bridge structure noise caused by viaducts. For railway vehicles, according to relevant research, the wheel-rail rolling noise level is generally proportional to 30lgV (V is the vehicle speed), while the aerodynamic noise is proportion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L5/20B60L5/18
CPCB60L5/18B60L5/20B60L2200/26
Inventor 刘海涛
Owner EAST CHINA JIAOTONG UNIVERSITY
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