A support and limit device for a wind tunnel and a wind tunnel test system having the same
A limit device and wind tunnel test technology, which is applied in the field of wind tunnel tests, can solve problems such as endangering model safety, model out of control, and influence on the accuracy of test results, and achieve the effects of simple installation and operation, prevention of interference, and improvement of accuracy performance
Active Publication Date: 2017-09-29
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology
[0003] For example, in the aircraft flutter test, the existing technology usually uses multi-point elastic suspension, supplemented by steel cable protection to limit the displacement of the aircraft. This method can simulate the heave and pitch modes of the aircraft, but using this The method requires the cooperation of multiple people, and the operation convenience and protection reliability are not high. A slight improper operation in the test will easily lead to the rapid loss of control of the model and endanger the safety of the model.
In addition, the introduction of protective steel cables will also affect the accuracy of the test results to a certain extent.
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[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...
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The invention discloses a support limiting device for a wind tunnel and a wind tunnel test system with the same. The supporting and limiting device for the wind tunnel includes: a supporting body, one end of which is used for detachably connecting with the wind tunnel upper wall of the wind tunnel, and the other end is used for detachably connecting with the wind tunnel floor of the wind tunnel; and A clamping device, which is arranged on the support body and is detachably connected with the flutter model, and the clamping device is elastically connected to the two ends of the support body or one of the two ends; the clamping device is used to follow the The flutter model moves in the direction of the aerodynamic upper wall-wind tunnel bottom plate, and when the locking device moves, it is acted by an elastic force opposite to the moving direction to hinder the movement of the locking device. With this structure, not only can the ups and downs and pitching modes of the aircraft be simulated, but also there is no interference from the protective cables, and the installation reliability of the flutter model and the accuracy of the test results are effectively improved.
Description
technical field [0001] The present invention relates to the technical field of wind tunnel tests, in particular to a wind tunnel support and limit device and a wind tunnel test system having the same, wherein the wind tunnel support and limit device is used to limit vibration in wind tunnel tests. The displacement of the vibration model. Background technique [0002] Usually, when flutter tests of flutter models are performed using wind tunnel tests, it is necessary to limit the displacement of the flutter model, and only allow the flutter model to have flutter displacement. [0003] For example, in the aircraft flutter test, the existing technology usually uses multi-point elastic suspension, supplemented by steel cable protection to limit the displacement of the aircraft. This method can simulate the heave and pitch modes of the aircraft, but using this The method requires the cooperation of multiple people, and the convenience of operation and the reliability of protecti...
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IPC IPC(8): G01M9/04G01M9/00
Inventor 胡志勇陈海孙晓红
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA