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Micro-miniature spiral motion amphibious bionic propeller and driving method thereof

A spiral motion, amphibious bionic technology, applied in amphibious vehicles, motor vehicles, transportation and packaging, etc., can solve problems such as complex control, inability of mechanical fins and claws to handle complex environments, and large bionic system structure

Active Publication Date: 2021-09-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing bionic amphibious thrusters mostly rely on electromagnetic motors to control the mechanical fins or mechanical claws arranged on both sides of the body to achieve plane movement. The bionic system of this driving method has a large structure, complex control and problems such as water sealing.
The most important thing is that the movement of mechanical fins or mechanical claws on the plane is not suitable for complex environments

Method used

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  • Micro-miniature spiral motion amphibious bionic propeller and driving method thereof
  • Micro-miniature spiral motion amphibious bionic propeller and driving method thereof
  • Micro-miniature spiral motion amphibious bionic propeller and driving method thereof

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0037] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0038] Such as figure 1 As shown, the present invention discloses a micro-miniature helical motion amphibious bionic propeller, including 8N deformation units, and first to fourth elastic stay cords, where N is a natural number greater than or equal to 1;

[0039] Such as figure 2 As shown, the deformation unit includes first to second joints, piezoelectric bimorphs, and first to fourth guide pieces, wherein the piezoelectric bimorphs are rectangular, and the inner wafers are all po...

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Abstract

The invention discloses a micro-miniature spiral motion amphibious bionic propeller and a driving method thereof. The amphibious bionic propeller comprises 8N deformation units, a first elastic pull rope, a second elastic pull rope, a third elastic pull rope and a fourth elastic pull rope. The deformation unit comprises a first joint, a second joint, a piezoelectric bimorph, and first to fourth guide sheets. During work, two groups of electric signals with a phase difference of pi / 2 are adopted to excite the piezoelectric bimorphs of the 8N deformation units respectively, so that the bionic propeller forms two groups of standing waves with a phase difference of 90 degrees in space and time on the two planes with a phase difference of 90 degrees respectively; the two groups of standing waves are superposed on a certain plane to form traveling waves, and the traveling waves on the two planes are superposed to form the spiral motion in space. The bionic propeller is simple in structure, and is easy to realize microminiaturization and simple and convenient to control.

Description

technical field [0001] The invention relates to the fields of amphibious propellers and piezoelectric drives, in particular to a miniature helical motion amphibious bionic propeller and a driving method thereof. Background technique [0002] Ocean and island defense and economic development play a pivotal role. Due to the needs of hydrological information acquisition, marine resource exploration, island inspection, and island defense construction, amphibious thrusters have achieved a large degree of development, especially bionic amphibious thrusters. [0003] The biomimetic amphibious thruster can move both underwater and on rough ground, which makes it a multi-directional continuous information acquisition tool. Existing bionic amphibious propellers mostly rely on electromagnetic motors to control the mechanical fins or mechanical claws arranged on both sides of the body to achieve plane motion. The bionic system of this driving method has a large structure, complex contr...

Claims

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Application Information

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IPC IPC(8): H02N2/00B60F3/00B63C11/52
CPCH02N2/00H02N2/005H02N2/0075H02N2/0095H02N2/0015B60F3/0023B63C11/52Y02T70/10
Inventor 刘瑞金家楣许嘉嘉王亮
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS