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Wind-tunnel model supporting device

A supporting device and model technology, applied in the direction of measuring devices, instruments, aerodynamic tests, etc., can solve the problems of large input acceleration, complex structure, high manufacturing and assembly costs, and achieve reduced motion speed, high transmission efficiency, and compact structure Effect

Inactive Publication Date: 2013-04-10
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the limitation of the radius of the wind tunnel, when the model moves with large amplitude and high frequency, the input acceleration required by the support system of the wind tunnel model will be quite large, which cannot be realized by the general drive unit, and the structure is complicated. Manufacturing, high assembly cost

Method used

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  • Wind-tunnel model supporting device
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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0044] In the description of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "top", "bottom" and O-XYZ coordinate system are based on the drawings The orientation or positional relationship is only for the convenience of describing the present invention and does not require the present invention to be constructed and operated in a specific orientation, so it should not be construed as a limitation of the present invention. For example, in the present...

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Abstract

The invention discloses a wind-tunnel model supporting device which comprises a moving platform, a clamping device, a first driving unit and a second driving unit, wherein the moving platform is provided with three translation degrees of freedom and at least one rotation degree of freedom, the clamping device is interconnected with the moving platform and used for fixing and supporting a model, the first and the second driving units are arranged on the moving platform and used for driving the clamping device so as to ensure that the clamping device obtains a free rotation degree along a longitudinal direction and a transverse direction, the first driving unit comprises a first driving motor and a first gear rack mechanism, and the second driving unit comprises a second driving motor and asecond gear rack mechanism. The wind-tunnel model supporting device can realize six degrees of freedom of a model in a wind-tunnel experiment, can effectively enlarge the pitching and rolling vibration amplitude which can be realized by a model support through the parallel-connected first driving unit and the second driving unit, thereby reducing the acceleration, the moving speed and the moving stroke of the driving unit. The invention has simple and reliable structure.

Description

technical field [0001] The invention relates to the field of wind tunnel experiment equipment, in particular to a wind tunnel model supporting device used for supporting models in wind tunnel experiments. Background technique [0002] Wind tunnel experiment is one of the three basic means of aerodynamic research, and the results of wind tunnel experiment have strongly promoted the development of aerospace industry. In the wind tunnel experiment, the aircraft model (hereinafter referred to as the model) is required to frequently make attitudes and actions such as pitch, yaw, roll, heave, lateral translation and longitudinal translation. In order to realize the above posture and action, the model must first be supported in the wind tunnel with a support system. This support is usually called the wind tunnel model support system, which is the mechanism to realize the attitude control of the model in the wind tunnel. In wind tunnel experiments, commonly used model support metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04
Inventor 关立文王立平汪劲松张浩
Owner TSINGHUA UNIV
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