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Automatic adjustable automobile wind tunnel testing platform with function of interference elimination

A technology of automobile wind tunnel and test platform, which is applied in the direction of aerodynamic test, vehicle test, machine/structural component test, etc. It can solve the problem of large dynamic noise, which is difficult to meet the applicability and test efficiency requirements of real vehicle wind tunnel test , manual adjustment time-consuming and labor-intensive problems, to achieve the effect of reducing the test noise

Inactive Publication Date: 2016-09-21
JILIN UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Automobile wind tunnel is a kind of test equipment for automobile aerodynamics research. In the prior art, when a real vehicle or large-scale model is used for wind tunnel test, due to the characteristics of traditional wind tunnel test support, the test support device exposed in the flow field It has a great influence on the quality of the flow field in the test section and there is a large aerodynamic noise; in addition, due to different models, wheelbases and wheelbases are different, it is time-consuming and laborious to manually adjust the support of the wheelbase and wheelbase, and it is difficult to meet the actual vehicle wind. The applicability of the hole test and the test efficiency requirements

Method used

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  • Automatic adjustable automobile wind tunnel testing platform with function of interference elimination
  • Automatic adjustable automobile wind tunnel testing platform with function of interference elimination
  • Automatic adjustable automobile wind tunnel testing platform with function of interference elimination

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Embodiment Construction

[0025] Describe technical scheme of the present invention in detail below in conjunction with accompanying drawing:

[0026] The automobile wind tunnel test device comprises a wind tunnel body, a power system, a control system, a test system, a force-measuring balance and a wind-tunnel test platform. The force-measuring balance is provided with a balance floating frame and two balance supports. The invention provides a The automatic adjustable vehicle wind tunnel test platform for eliminating interference is composed of a test bench, an automatic wheelbase adjustment part and a wheelbase adjustment part. The test bench is installed on the floor of the wind tunnel test section and is covered by the balance support; the wheelbase automatic adjustment part is installed at the bottom of the balance support, which is used to adjust the distance between the two balance supports along the vehicle axis to adapt to test vehicles with different wheelbases ; The wheelbase adjustment part...

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Abstract

The invention discloses an automatic adjustable automobile wind tunnel testing platform with the function of interference elimination. The testing platform comprises a testing bench, an automatic wheel base adjusting part, and a tread adjusting part. The testing bench is installed on a wind tunnel testing segment floor and covers a balance support. The automatic wheel base adjusting part is installed at the lower part of the balance support; and the tread adjusting part is installed in the balance support. The automatic wheel base adjusting part consists of a wheel base displacement sensor, a gear rack driving device, a drive motor, a wheel base adjustment support and a guide rod; the wheel base adjustment support is fixed at the bottom of the balance support; the guide rod passes through the wheel base adjustment support and the is connected with a balance floating frame; the wheel base adjustment support can move axially along the guide rod; the wheel base displacement sensor is arranged on the wheel base adjustment support; and the wheel base adjustment support is connected with the drive motor by the gear rack driving device. According to the invention, the interference on the process quality by the support exposed in the flow field in wind tunnel testing can be eliminated; and supports of vehicles with different wheel bases and threads can be realized.

Description

technical field [0001] The invention relates to an automobile wind tunnel test platform, in particular to an automatically adjustable automobile wind tunnel test platform capable of eliminating interference. Background technique [0002] Automobile wind tunnel is a kind of test equipment for automobile aerodynamics research. In the prior art, when a real vehicle or large-scale model is used for wind tunnel test, due to the characteristics of traditional wind tunnel test support, the test support device exposed in the flow field It has a great influence on the quality of the flow field in the test section and there is a large aerodynamic noise; in addition, due to different models, wheelbases and wheelbases are different, it is time-consuming and laborious to manually adjust the support of the wheelbase and wheelbase, and it is difficult to meet the actual vehicle wind. The applicability of the hole test and the test efficiency requirements. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): G01M9/06G01M17/007
CPCG01M9/06G01M17/007
Inventor 于旭涛胡兴军郭鹏王靖宇刘宇堃杜玮薛超坦曹杰汛李冠群翁桢金铃辛俐惠政
Owner JILIN UNIV
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