Aeroelastic flutter generating device

A technology of aeroelasticity and generation device, which is applied in measurement devices, aerodynamic tests, instruments, etc., can solve problems such as the difficulty of using flutter phenomenon, understanding and research of aeroelasticity, etc., and achieves economical, practical, high-quality linear working area Features adjustable, easy-to-achieve effects

Inactive Publication Date: 2009-04-29
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although some universities have already provided aeroelasticity courses, and some technicians are engaged in the research of aeroelasticity, no one has designed and provided artificial flutter generating devices, which not only makes it difficult for res...

Method used

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  • Aeroelastic flutter generating device
  • Aeroelastic flutter generating device
  • Aeroelastic flutter generating device

Examples

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Embodiment Construction

[0028] The structure of the present invention will be further described below through embodiments and in conjunction with the accompanying drawings.

[0029] The aeroelastic flutter generating device of the present invention is realized through rational design and assembly of typical wing sections, translation recovery devices, torsional recovery devices, wind tunnel test benches, data acquisition equipment and data analysis equipment. The technical scheme of concrete implementation is as follows:

[0030] refer to figure 1 and figure 2 , The basic structure of the aeroelastic flutter generating device according to an embodiment of the present invention includes: a wing section 1 , a translation recovery device 5 , a torsional recovery device 6 , and a wind tunnel stand 2 .

[0031] The wing section 1 must have sufficient bending stiffness and torsional stiffness to prevent resonance with the wind tunnel platform 2 . refer to figure 2 and Figure 5 As shown, the wing se...

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Abstract

The invention provides an aeroelastic flutter generator, which comprises a wing panel, a platform, a translation return mechanism which is coupled between the platform and the wing panel, and a torsion return mechanism which is coupled between the platform and the wing panel. The aeroelastic flutter generator can make the aeroelastic phenomenon easy to be observed by naked eyes and make the sinkage rigidity and the torsional rigidity adjustable, and has limitation protection.

Description

technical field [0001] The invention relates to an aeroelastic flutter generating device, in particular to a wing section flutter and divergence generating device. Background technique [0002] Flutter is an important phenomenon in aviation. Although some universities have already provided aeroelasticity courses, and some technicians are engaged in the research of aeroelasticity, no one has designed and provided an artificial flutter generating device, which not only creates difficulties for researchers to understand and study aeroelasticity, but also makes research Many active suppression control laws about aeroelasticity designed by researchers can rarely be verified by experiments, and it also makes the possible use of flutter phenomena more difficult. [0003] For example, how to design an aeroelastic flutter generating device so that: first, typical airfoil flutter and divergent aeroelastic phenomena can occur in a low-speed wind tunnel; second, it can be used as a res...

Claims

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Application Information

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IPC IPC(8): G01M9/06
Inventor 吴志刚荆志伟杨超
Owner BEIHANG UNIV
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