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Publisher DOI: 10.3390/biomimetics5020014
Title: Structure and frictional properties of the leg joint of the beetle Pachnoda marginata (Scarabaeidae, Cetoniinae) as an inspiration for technical joints
Language: English
Authors: Vagts, Steffen 
Schlattmann, Josef 
Kovalev, Alexander 
Gorb, Stanislav N. 
Keywords: locomotion; walking; leg; joints; insects; Arthropoda; friction; coefficient of friction; biotribology; biomimetics
Issue Date: 20-Apr-2020
Publisher: Multidisciplinary Digital Publishing Institute
Source: Biomimetics 5 (2): 14 (2020)
Abstract (english): 
The efficient locomotion of insects is not only inspiring for control algorithms but also promises innovations for the reduction of friction in joints. After previous analysis of the leg kinematics and the topological characterization of the contacting joint surfaces in the beetle Pachnoda marginata, in the present paper, we report on the measurement of the coefficient of friction within the leg joints exhibiting an anisotropic frictional behavior in different sliding directions. In addition, the simulation of the mechanical behavior of a single microstructural element helped us to understand the interactions between the contact parts of this tribological system. These findings were partly transferred to a technical contact pair which is typical for such an application as joint connectors in the automotive field. This innovation helped to reduce the coefficient of friction under dry sliding conditions up to 17%.
DOI: 10.15480/882.2750
ISSN: 2313-7673
Journal: Biomimetics 
Other Identifiers: doi: 10.3390/biomimetics5020014
Institute: Laser- und Anlagensystemtechnik G-2 
Document Type: Article
Project: Project CARBTRIB 
More Funding information: Leverhulme Trust
Human Frontier Science Program (HFSP) (research grant RGP0002/2017)
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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