# Analysis of Structure and Function of Ladybird Leg and Subsequent Design and Fabrication of a Simplified Leg Structure for Robotic Applications

https://mdr.nims.go.jp/datasets/8e054f1e-2642-43e9-98a4-b66fce83534e

## File

- [biomimetics-09-00184.pdf](https://mdr.nims.go.jp/filesets/8ab9002c-3ee4-40ad-9209-699d87504e34/download) ([Detail](https://mdr.nims.go.jp/filesets/8ab9002c-3ee4-40ad-9209-699d87504e34.md))

## Id

8e054f1e-2642-43e9-98a4-b66fce83534e

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-03-27T00:55:35.072596Z

## Updated at

2024-03-28T03:30:36.477619Z

## Published at

2024-03-28T03:30:36.588670Z

## Doi



## First published url

https://doi.org/10.3390/biomimetics9030184

## Date published

2024-03-18

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Analysis of Structure and Function of Ladybird Leg and Subsequent Design
    and Fabrication of a Simplified Leg Structure for Robotic Applications
  title_type: original
  lang: en

## Description

- description: Many insects are able to walk vertically or upside down on both hard
    and soft surfaces. In beetles such as the ladybird (Coccinella septempunctata),
    intermolecular forces between tarsal setae on the footpads of the insects make
    this movement possible. In prior work, adhesion structures made from polydimethylsiloxane
    (PDMS) that mimic the action of the tarsal setae have been developed. It is proposed
    that these adhesion structures could be attached to a simplified version of the
    leg of a ladybird and used in practical applications. For example, the leg structures
    could potentially be employed in small surveillance drones to enable attachment
    to surfaces during flights, in order to preserve battery power. Alternatively,
    the structures could be used in small robotic devices to en-able walking on steeply
    inclined surfaces. In this program of work, the morphology and move-ment of the
    leg of a ladybird were closely studied using 3D X-ray microscope and high speed
    mi-croscope. The positions of the tendons that facilitated movement were identified.
    From this knowledge, a simplified leg structure using pin-joints was designed
    and then fabricated using 3-D printing. The PDMS adhesion structures were then
    attached to the leg structure. The tendons in the actual insect leg were replicated
    using thread. Typical detachment forces of about 4N indi-cated that the simplified
    leg structure was, in principle, more than capable of supporting the weight of
    a small device and then detach successfully. Attachment/detachment movement opera-tions
    were performed using a linear actuator and controlled remotely. Therefore, proof
    of concept has been demonstrated for the use of such a simplified ladybird leg
    structure for the attach-ment/detachment of small robotic devices to horizontal,
    inclined or vertical surfaces.
  description_type: abstract
  lang: und

## Creator

- name: Christopher Mercer
  role: author
  orcid: https://orcid.org/0000-0002-4249-4075
  organization: National Institute for Materials Science
- name: Naoe Hosoda
  role: author
  orcid: https://orcid.org/0000-0002-7440-4927
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: MDPI AG

## Managing organization



## Keyword

- subject: ladybird leg
  schema: not_defined
- subject: bio-inspired
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

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## Data origin



## Embargo



## Journal

- title: Biomimetics
  issn: '23137673'
  start_page: 184
  end_page: 184

## Conference



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## Funding

- identifier: JPJ004596
  funder_name: Innovative Science and Technology Initiative for Security

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## Specimen



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## Fileset

- id: 8ab9002c-3ee4-40ad-9209-699d87504e34
  filename: biomimetics-09-00184.pdf
  content_type: application/pdf
  size: 5386832
  md5: bdb66a9b353e577949f0df94acd88093

## Thumbnail

fileset_id: 8ab9002c-3ee4-40ad-9209-699d87504e34
filename: biomimetics-09-00184.pdf