Three-freedom-degree flapping-wing comprehensive experiment platform

An experimental platform and degree of freedom technology, applied in the field of flapping wing comprehensive experimental platform, can solve the problems of complex mechanism and low accuracy, and achieve the effect of small windward area, simple structure and good flow field quality.

CN102338690BInactive Publication Date: 2013-11-06NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2013-11-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a three-freedom-degree flapping-wing comprehensive experiment platform which comprises a rack, a driving motor, a transmission mechanism, flapping wings and a control system, wherein a box-type structure is adopted under the rack and is used for installing the driving motor and the control system; two universal bearings are symmetrically arranged by a cross beam supported by vertical columns, so that one pair of flapping wings have three rotating freedom degrees; and the transmission mechanism transmits the rotation of the driving motor to the flapping wings to realize three-freedom-degree compound flapping, and measures the flapping force and the torque characteristic of the flapping wings by a sensor. According to the three-freedom-degree flapping-wing comprehensive experiment platform, any three-freedom-degree preset flapping law of the up-down flapping, the front-back sweeping and twisting can be accurately realized, and the direct real-time measurement is carried out on the force and moment in the flapping process. The three-freedom-degree flapping-wing comprehensive experiment platform is suitable for analysis and verification of the wind tunnel test for the complex moving law of the flapping wings.
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Description

technical field

[0001] The invention relates to a flapping wing driving mechanism, in particular to a flapping wing comprehensive experiment platform capable of realizing compound flapping and measuring. Background technique

[0002] The micro flapping wing aircraft is a new concept aircraft that imitates the flight of birds. It has the advantages of small size, light weight, flexible use, and high efficiency. If it is equipped with sensors and related data transmission and flight control systems, it will form a micro flapping wing unmanned machine platform, it will have broad application prospects.

[0003] In order to obtain a miniature flapping-wing aircraft with ideal performance, it is necessary to analyze and realize the bionic high-lift mechanism. Studies have shown that the high aerodynamic efficiency of birds and insects in nature is mainly due to the torsional movement around the span and the forward and backward sweeping movement in addition to the plane up and d...

Examples

Embodiment Construction

[0027] The three-degree-of-freedom flapping wing comprehensive experiment platform of the present invention includes a frame, a flapping wing, a transmission mechanism, a driving motor and a control system.

[0028] The frame 1 is left-right symmetrical, the lower part is a box-type structure 1A, the upper part is fixed with two columns 1B, 1B' front and rear, the axis of the columns is located in the symmetrical plane, and the upper surface of the box-type structure 1A has an opening between the two columns 1B and 1B'. The height of the two columns is equal, and the height of the flapping wing 2 does not interfere with the motion of the box structure when flapping. The tops of the two columns 1B and 1B' are respectively fixed with one end of the beam 1C.

[0029] For the convenience of expression, take the chord direction of the neutral position of the flapping wing 2 as the X axis, the span direction of the neutral position of the flapping wing as the Y axis, and the up and ...