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Dynamically induced friction reduction in micro-structured interfaces

delete2021-04-14
delete9
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OA
AI
N
Nicola Menga *
F
Francesco Bottiglione
G
Giuseppe Carbone
DOI:10.1038/s41598-021-87484-5delete
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摘要

摘要

En 中文
We investigate the dynamic behavior of a regular array of in-plane elastic supports interposed between a sliding rigid body and a rigid substrate. Each support is modelled as a mass connected to a fixed pivot by means of radial and tangential elastic elements. Frictional interactions are considered at the interface between the supports and the sliding body. Depending on the specific elastic properties of the supports, different dynamic regimes can be achieved, which, in turn, affect the system frictional behavior. Specifically, due to transverse microscopic vibration of the supports, a lower friction force opposing the macroscopic motion of the rigid body can be achieved compared to the case where no supports are present and rubbing occurs with the substrate. Furthermore, we found that the supports static orientation plays a key role in determining the frictional interactions, thus offering the chance to specifically design the array aiming at controlling the resulting interfacial friction force.
Keyword:
TANGENTIAL VIBRATIONS
VISCOELASTIC LAYERS
SURFACE
CONTACT
MODEL
BEHAVIOR
STEEL
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期刊

Scientific Reports 封面图
Scientific Reports
IF:
3.9
论文数:
28.0W
被引数:
83.5W

机构

P
Politecnico di Bari
学者数:
4.0K
论文数: 4.0K
被引数: 6
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