Unlock instant, AI-driven research and patent intelligence for your innovation.

A soft driver based on Yoshimura origami and its preparation method and application

A soft drive and liquid technology, applied in the field of soft origami tubes, can solve the problems of small pressure bearing performance and output force, limiting the application range of soft origami drives, etc.

Active Publication Date: 2022-04-12
BEIHANG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the processing technology of soft origami tubes, Woongbae et al. (W.Kim et al., Bioinspired dual-morphing stretchable origami, Science Robotics, 2019, 4(36): eaay3493, doi: 10.1126 / scirobotics.aay3493.) according to "Strange Inspired by "Fish", the integrated processing technology of soft origami unit layered casting was proposed, but it can only withstand the air pressure below 15kPa, and the maximum output force is only about 5N
The small pressure-bearing performance and output force of the above-mentioned soft origami tube limit the application range and safety of the soft origami driver to a large extent

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A soft driver based on Yoshimura origami and its preparation method and application
  • A soft driver based on Yoshimura origami and its preparation method and application
  • A soft driver based on Yoshimura origami and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The invention provides a method for preparing a software driver based on Yoshimura origami, comprising the following steps;

[0038] Utilize toughness and high temperature resistant resin to 3D print wax film molds and positioning rods;

[0039] Utilize photosensitive resin 3D to print the first outer mold and the second outer mold; the relationship between the geometric dimensions of the wax mold, the second outer mold and the first outer mold satisfies: the second outer mold>the first An outer mold mold>wax mold mold, the first outer mold mold has a mirror-symmetrical spiral protrusion, and the positioning rod has a spiral line; the wax film mold, the first outer mold mold and the second outer mold mold The shapes of the molds are all based on Yoshimura-style origami;

[0040] After inserting the positioning rod into the wax film mold, pouring paraffin, and then demoulding to obtain the wax film inner mold;

[0041] Mix components A and B of Dragon Skin 20 silica ge...

Embodiment 1

[0093] Step 1: Mold Preparation

[0094] Using tough high temperature resistant resin ( Somos) 3D printing generates a wax film mold and a positioning rod, and photosensitive resin 3D printing generates a first outer mold and a second outer mold.

[0095] The shapes of the molds are all based on Yoshimura-style origami, whose structure is as follows: figure 1 shown. figure 1 in, a 1 and a 2 is the length of two parallel sides of an equilateral trapezoid, h is the height of the trapezoid, γ is the base angle of the isosceles trapezoid, θ is the dihedral angle of adjacent planes connected by creases, N is the number of vertical layers, and M is the upper layer in the horizontal direction For equilateral trapezoidal numbers, the geometric parameters of Yoshimura-style origami preferably satisfy formula 1:

[0096]

[0097]The relationship between the geometric dimensions of the molds satisfies: the second outer mold > the first outer mold > the wax mold. All molds are c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a soft driver based on Yoshimura origami and its preparation method and application, belonging to the technical field of soft origami tubes. The present invention is based on the structure of Yoshimura-style origami, and aims to achieve a larger folding-expansion ratio through preset creases; the use of liquid silica gel further breaks through the folding-expansion ratio of traditional origami mechanisms, because liquid silica gel has certain ductility and carbon fiber filaments The radial deformation of the soft actuator is limited. Therefore, under the action of air pressure, the soft actuator can break through the limitation of the traditional origami mechanism structure, and further perform axial elongation to achieve a greater expansion height. In the present invention, the carbon fiber plays a role in limiting the soft The role of radial expansion of the driver, and the carbon fiber also bears a certain pressure, and the overall pressure-bearing performance of the software driver is improved; the outer layer of silica gel mainly plays the role of positioning the carbon fiber.

Description

technical field [0001] The invention relates to the technical field of soft origami tubes, in particular to a Yoshimura origami-based soft driver and its preparation method and application. Background technique [0002] The main application for introducing origami patterns into thin-walled structures is origami crash boxes. Crash boxes are widely used as energy-absorbing devices in low-speed crashes due to their predictable and stable collapse modes and low manufacturing cost. The axial buckling behavior of different tubular thin-walled energy-absorbing structures such as rectangular, polygonal cross-section, tapered tubes, etc. has been intensively studied in the prior art. [0003] For the processing technology of soft origami tubes, Woongbae et al. (W.Kim et al., Bioinspired dual-morphing stretchable origami, Science Robotics, 2019, 4(36): eaay3493, doi: 10.1126 / scirobotics.aay3493.) according to "Strange Inspired by "Fish", the integrated processing technology of soft ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B29D22/02B29C69/00B29C70/68B29C39/02B29C39/10B29C65/48B29L22/02
CPCB29D22/02B29C69/00B29C70/68B29C39/02B29C39/10B29C65/48B29L2022/02
Inventor 王党校张艳王子琦张玉茹
Owner BEIHANG UNIV