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Wind tunnel experiment test device and method for aerodynamic characteristics of vehicle-bridge system under cross wind

A technology of wind tunnel test and aerodynamic characteristics, applied in aerodynamic test, measuring device, railway vehicle test, etc., can solve the problem of lack of relative motion device for vehicle-bridge system

Pending Publication Date: 2018-08-14
CENT SOUTH UNIV +1
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  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a wind tunnel test device and method for the aerodynamic characteristics of the vehicle-bridge system under the action of cross wind. Actions and technical issues of the relative motion device between the intersecting train and the surrounding environment

Method used

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  • Wind tunnel experiment test device and method for aerodynamic characteristics of vehicle-bridge system under cross wind
  • Wind tunnel experiment test device and method for aerodynamic characteristics of vehicle-bridge system under cross wind

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Embodiment Construction

[0026] The accompanying drawings constituting a part of this application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

[0027] see figure 1 , the vehicle-bridge system aerodynamic characteristics wind tunnel test device under the action of cross wind provided by the present invention comprises: vehicle model 100, ejection mechanism, buffer mechanism, wind tunnel test section 500, ejection guide rail 610, and ejection guide rail 610 passes through the wind tunnel The test section 500; the ejection mechanism and the buffer mechanism are respectively arranged at the two ends of the ejection guide rail 610; the vehicle model 100 stops running at the buffer mechanism; the ejection mechanism includes a compression ejection part and an ejection part, and the compression ejection ...

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Abstract

The invention provides a wind tunnel experiment test device and method for aerodynamic characteristics of a vehicle-bridge system under cross wind. The device comprises a vehicle model, an ejection mechanism, a buffer mechanism, a wind tunnel experiment section and an ejection guiding rail, and the ejection guiding rail penetrates through the wind tunnel experiment section; the ejection mechanismand the buffer mechanism are respectively disposed at two ends of the ejection guiding rail; the vehicle model stops operating at the buffer mechanism; the ejection mechanism includes a compression ejection member and an ejection portion, the compression ejection member presses the vehicle model against the ejection portion, and the vehicle model is released to run along the ejection guiding rail.A scale model is used for simulating a actual bridge and train to conduct a real simulation experiment, and the wind tunnel experiment test method and device thereof of the aerodynamic characteristics of the mobile vehicle-bridge system to restore the highly real simulation experiment are achieved. The invention further provides the experiment test method of the device.

Description

technical field [0001] The invention relates to the technical field of simulation test of the aerodynamic characteristics of the high-speed railway vehicle-bridge system, in particular to a wind tunnel test device and method for the aerodynamic characteristics of the vehicle-bridge system under the action of cross wind. Background technique [0002] Driving speed is the goal pursued by the development of transportation, and "safety" is the eternal theme. However, traffic safety accidents caused by strong winds emerge in endlessly: since the beginning of railway transportation in Japan, 28 train accidents caused by strong winds have occurred. The British "Eurostar" was forced to suspend operation due to strong winds; there were also many accidents where cars were blown over by strong winds on the Humen Bridge in Guangzhou. When a vehicle runs on a bridge, the dynamic shock generated when the vehicle crosses the bridge will cause the bridge to vibrate, and the vibration of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/02G01M9/08
CPCG01M9/02G01M9/08G01M9/04G01P3/36G01M17/08G01M9/06
Inventor 何旭辉邹思敏王汉封
Owner CENT SOUTH UNIV
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