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Train model for tunnel pressure wave test

A technology for pressure wave and test, which is applied in the field of train model for tunnel pressure wave test, can solve the problems of high cost and difficulty in building, and achieve the effects of short building period, easy installation and disassembly, and low processing cost

Pending Publication Date: 2019-05-03
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The experimental model for testing tunnel pressure waves currently mainly uses high-pressure air acceleration or magnetic levitation acceleration, but the above research methods are expensive and difficult to build

Method used

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  • Train model for tunnel pressure wave test
  • Train model for tunnel pressure wave test
  • Train model for tunnel pressure wave test

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Experimental program
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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] The present invention provides a train model for tunnel pressure wave test, which includes a chassis 8, a vehicle body 12, a clamping device, a slideway 2, rollers 13, a traction wire rope 7 and a track wire rope 1. The clamping device and the lower end of the vehicle body 12 are all fixed to the chassis 8 by bolts; the front and rear surfaces of the chassis 8 are provided with wire holes for passing the traction wire rope 7 and the track wire rope 1, and the bottom of the chassis 8 is equipped with a friction-reducing roller 13; The track wire rope 1 passes through the line hole on the chassis 8 and the slideway 2, and the slideway 2 is fixed on the inner sides of the front and rear ends of the chassis 8 and the vehicle body 12 by bolts to support the track wire rope 1; the traction wire rope 7 passes through the line hole and ...

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Abstract

The invention discloses a train model for a tunnel pressure wave test. The train model comprises a chassis 8 and a train body 12 installed on the chassis. Slide ways that slide on track steel ropes and enable the train model to be suspended on the steel ropes are arranged at four corners of the train body respectively. Support standing columns 10 are formed by a front support column and a rear support column that are arranged on the chassis vertically and symmetrically. An X-shaped clamp arm 9 is arranged between the front support column and the rear support column by a hinge shaft 11. On thebasis of the structure, a motor drives a traction steel rope and thus the train model is driven to complete tunnel pressure wave testing at the slide ways, so that the experiment cost is lowered. On the basis of the rapid traction and clamping structure, the clamping device is in a loosening state all the time before the motor is accelerated at a designated speed; and after the motor drives the traction steel rope to arrive at a designated speed, a wedge-shaped pressing block is loosened instantaneously and the clamping device clamps the traction steel rope instantaneously, thereby realizing high-speed starting of the train and reducing the starting accelerating speed substantially.

Description

technical field [0001] The invention relates to the technical field of vehicle testing, in particular to a train model for tunnel pressure wave testing. Background technique [0002] With the rapid development of my country's subway construction, the operating speed of subway trains has been continuously improved. However, the increase of train speed leads to the intensification of the interaction between the train and the air, which makes many problems that can be ignored at low speeds become obvious. Therefore, it is necessary to conduct aerodynamic research on the train, and the tunnel pressure wave is one of the key problems. The experimental model for testing tunnel pressure waves currently mainly uses high-pressure air acceleration or magnetic levitation acceleration, but the above research methods are expensive and difficult to build. For this reason, the applicant proposed a scheme of using a motor to drive a traction wire rope to pull a train model, and provided a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/08G01M17/08
Inventor 孟祥印彭杰王宏林毕海权李刚方谊
Owner SOUTHWEST JIAOTONG UNIV
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