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A curved capillary wave propeller and preparation method and propulsion system

A capillary wave and thruster technology, applied in the field of mechanical engineering, can solve problems such as limited capillary wave amplitude, low capillary wave strength, and limited propulsion capacity, and achieve the goal of increased Coulomb force, improved propulsion capacity, and strong propulsion capacity Effect

Active Publication Date: 2022-07-08
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the capillary wave amplitude generated by the existing straight plate dielectric wetting unit is limited, so the wave intensity of the capillary wave is not high, and its propulsion ability is limited when it is used as a propeller, which hinders its application

Method used

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  • A curved capillary wave propeller and preparation method and propulsion system
  • A curved capillary wave propeller and preparation method and propulsion system
  • A curved capillary wave propeller and preparation method and propulsion system

Examples

Experimental program
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Effect test

preparation example Construction

[0023] like figure 2 A preparation method of a curved capillary wave thruster is shown, comprising:

[0024] Use a 3D printer to print the ABS material into a curved substrate 1-1 with a horizontal concave 120°;

[0025] The conductive layer 1-2 is formed by magnetron sputtering indium tin oxide on the polyethylene terephthalate film, and the conductive layer 1-2 with a thickness of 0.05mm is attached to the curved substrate 1-1;

[0026] Use conductive resin to adhere the nickel wire on the conductive layer 1-2 and heat it for a certain period of time to form the electrode 1-3;

[0027] The silicon dioxide magnetron is sputtered on the upper surface of the conductive layer 1-2 with the electrodes 1-3 to form the dielectric layer 1-4;

[0028] The polytetrafluoroethylene solution was plated on the surface of the dielectric layer 1-4 to form a hydrophobic layer 1-5, and the curved substrate 1-1 with the dielectric layer 1-4 was immersed in a 5% polytetrafluoroethylene soluti...

Embodiment 1

[0032] A method for preparing a curved capillary wave propeller includes the following steps: using a 3D printer to print a curved substrate 1-1 with a curvature of 120°, using ABS as the material, and the deformation temperature of the ABS is higher than the baking temperature in the subsequent steps, which can ensure The substrate is not deformed during the baking process. A 0.05mm-thick conductive film with indium tin oxide on the surface was adhered to the above-mentioned curved substrate 1-1, the nickel wire was fixed on the conductive film with conductive resin at the upper end, and placed in an oven to bake at 70°C for 60 minutes. After the conductive resin is solidified, the silicon dioxide magnetron is sputtered onto the conductive resin and the electrodes 1-3 to serve as the dielectric layers 1-4 of the curved capillary wave thruster to prevent the unit from being broken down after power-on. Using polytetrafluoroethylene solution as the hydrophobic layer 1-5 of the c...

Embodiment 2

[0034] According to the operation steps of Example 1, a capillary wave propeller bent at 120° was prepared, and the curved capillary wave propeller was added to the propulsion system as a water surface propeller.

[0035] Lightweight unmanned ships and aquatic micro-robots have extremely high requirements on their own weight. Traditional propulsion devices use mechanical structures such as motors and blades, which will greatly increase the weight and complexity of the propulsion device, thereby increasing the size of the device and limiting its application scenarios. . Compared with the existing small propulsion devices, the capillary wave propulsion system based on the dielectric wetting effect does not rely on mechanical motion to achieve propulsion. When alternating current is applied at both ends of the loop, it will cause the oscillation of the liquid contact angle on the surface of the capillary wave thruster. The change of the contact angle causes the displacement of th...

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Abstract

The invention discloses a curved capillary wave thruster, a preparation method of the curved capillary wave thruster, and a propulsion system based on the curved capillary wave thruster. The structure of the curved capillary wave thruster comprises: a curved substrate, a conductive layer, an electrode, Dielectric layer and hydrophobic layer; the conductive layer is adhered to the substrate, the electrode is adhered to the conductive layer, the dielectric layer is sprayed on the conductive layer and the dielectric layer by magnetron sputtering, and the hydrophobic layer is adhered to the dielectric layer. on the electrical layer. In the working state, the initial contact angle of the curved capillary wave propeller with the liquid is 129°. After applying the electrical signal, the contact angle changes to 68°. By changing the shape of the capillary wave thruster substrate, when the curvature of the capillary wave thruster is larger, the capillary waves close to the hydrophobic layer are bound in a smaller space, and the distance between the same charges carried by the liquid decreases, and they The Coulomb force between them increases and the repulsive force increases, which makes the contact angle change more and thus causes the capillary wave amplitude to increase.

Description

technical field [0001] The invention relates to the field of mechanical engineering, and in particular relates to a curved capillary wave propeller, a preparation method of the curved capillary wave propeller, and a propulsion system based on the curved capillary wave propeller. Background technique [0002] With the increasing demand of aquatic microrobots in water environment monitoring and confined space exploration in recent years, its application potential has attracted more and more attention, but it is limited by its complex electronic devices such as batteries, controllers, flaps, etc. Parts that coordinate actions, such microrobots don't really reach "miniature" in size and weight. There is a need for a light-weight, simple-structured actuation method that enables the micro-robots to operate covertly without being detected by optical technology or infrared instruments. [0003] The use of mechanical structures such as motors and blades in traditional surface propul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H1/37H02N11/00
CPCB63H1/37H02N11/006Y02T70/5236
Inventor 姜东岳田鹏昊陈贵军
Owner DALIAN UNIV OF TECH
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