Scheme for improving efficiency of flapping-wing aircraft

A technology of aircraft and flapping rigidity, which is applied in the field of aircraft, can solve the problem of high energy utilization efficiency of orthopter aircraft, and achieve the effect of improving energy efficiency and reducing system energy consumption

Inactive Publication Date: 2015-08-12
李维农
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the energy utilization efficiency of the existing orthopter is not higher than that of the fixed-wing aircraft

Method used

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  • Scheme for improving efficiency of flapping-wing aircraft
  • Scheme for improving efficiency of flapping-wing aircraft
  • Scheme for improving efficiency of flapping-wing aircraft

Examples

Experimental program
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Embodiment Construction

[0020] Such as figure 1 As shown, the vibrator (3) composed of the eccentric wheel driven by the motor (A) vibrates, which can feed the vibration energy to the wing bar (1), and then drive the wing film (2), so that the whole flapping wing swings;

[0021] Such as figure 2 As shown, when the pump (5) works in a cycle of "suction-squeeze", the working medium fluid will "fill liquid-absorb liquid" to the bionic wing vein pipeline (4) on the flapping wings according to a certain period, and vibrate The mass and rigidity of the wings change periodically, and at the same time, the whole wing flaps due to the joint action of gravity and fluid;

[0022] The electronic control system regulates the flapping drive mechanism and the flapping rigidity and quality adjustment mechanism based on the signals collected by the pressure sensor or acceleration sensor, so that the rigidity or quality of the flapping wings, as well as the vibration frequency and amplitude can reach the best state...

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Abstract

The present invention relates to a scheme for improving efficiency of a flapping-wing aircraft, which acquires progressing force through swing in a fluid medium (air or water). In the field, bionic flapping wing aircraft is provided, but fails to catch the essence of energy efficiency of swing flying of insects, fish and birds. Therefore, the energy utilization efficiency of the flapping-wing aircraft in the prior art is not higher than that of fixed wing airplane. In order to greatly improve the energy efficiency of high flapping-wing aircrafts, the invention provides a scheme for high efficiency wing-flapping aircraft. The flapping-wing aircraft provided by the invention is characterized in that wing roots are connected to other parts of the aircraft by springs, so that the flapping wings have an intrinsic flutter frequency, and the system only needs to supplement energy dissipated by the flapping wings for power consumption in each flutter cycle to maintain flutter of wings. Thus, the scheme greatly reduces energy consumption and improves the energy efficiency of flapping-wing navigation. According to the invention, by means of flapping-wing aircraft, human being can realize high efficiency navigation like insects and birds.

Description

Technical field [0001] The invention relates to an aircraft in a fluid medium (air or water), in particular to a scheme for improving the performance of an aircraft with flapping wings and the natural frequency of fluid. Background technique [0002] At present, the robot dragonfly named "BionicOpter" developed by the well-known German Festo (Festo) company is an excellent representative in the swing class aircraft. According to Festool, the BionicOpter's four wings are made of carbon fiber and foil materials, which can flap their wings 20 times per second, driving the dragonfly to fly in the air. Existing flapping-wing aircraft, including the BionicOpter robot dragonfly, are also called fluttering machines. They all use a power mechanism to forcibly drive the flapping wings to obtain forward power and lift. They do not catch insects and fish (tadpoles, essentially It is the orthopter with wing-body fusion), the essence of high efficiency and energy saving of birds swinging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C33/02
Inventor 李维农李维纲
Owner 李维农
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