Designing metainterfaces with specified friction laws

Designing metainterfaces with specified friction laws

January 11th 2024 | Antoine Aymard, Emilie Delplanque, Davy Dalmas, Julien Scheibert
This study presents a design strategy for creating metainterfaces with specified friction laws. The approach involves designing surface topographies composed of spherical asperities to achieve desired frictional behavior. By controlling the geometry and arrangement of these asperities, the researchers can tailor the frictional response of the interface. The method uses a combination of surface topography and a friction model to predict and achieve specific friction laws, including linear and non-linear behaviors. The strategy is validated through experiments with centimeter-scale elastomer-glass interfaces, demonstrating the ability to create interfaces with precisely defined friction characteristics. The design allows for the creation of interfaces that can adapt to different friction requirements, offering a scalable and material-independent solution for energy-efficient and adaptable smart interfaces. The study highlights the potential of this approach in various applications, including robotics, haptic feedback, and sports equipment, where precise control of friction is essential. The method provides a systematic way to design interfaces with specific frictional properties, overcoming the challenges of traditional tribology by simplifying the surface topography and focusing on the asperity-level interactions. The results show that the proposed strategy can accurately achieve complex friction laws, demonstrating its effectiveness in real-world applications.This study presents a design strategy for creating metainterfaces with specified friction laws. The approach involves designing surface topographies composed of spherical asperities to achieve desired frictional behavior. By controlling the geometry and arrangement of these asperities, the researchers can tailor the frictional response of the interface. The method uses a combination of surface topography and a friction model to predict and achieve specific friction laws, including linear and non-linear behaviors. The strategy is validated through experiments with centimeter-scale elastomer-glass interfaces, demonstrating the ability to create interfaces with precisely defined friction characteristics. The design allows for the creation of interfaces that can adapt to different friction requirements, offering a scalable and material-independent solution for energy-efficient and adaptable smart interfaces. The study highlights the potential of this approach in various applications, including robotics, haptic feedback, and sports equipment, where precise control of friction is essential. The method provides a systematic way to design interfaces with specific frictional properties, overcoming the challenges of traditional tribology by simplifying the surface topography and focusing on the asperity-level interactions. The results show that the proposed strategy can accurately achieve complex friction laws, demonstrating its effectiveness in real-world applications.
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[slides and audio] Designing metainterfaces with specified friction laws