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Jumping on water: Surface tension–dominated jumping of water striders and robotic insects

Koh, Je-Sung ; Yang, Eunjin ; Jung, Gwang-Pil ; Jung, Sun-Pill ; Son, Jae Hak ; Lee, Sang-Im ; Jablonski, Piotr G. ; Wood, Robert J. ; Kim, Ho-Young ; Cho, Kyu-Jin

Science (American Association for the Advancement of Science), 2015-07, Vol.349 (6247), p.517-521 [Periódico revisado por pares]

Washington: American Association for the Advancement of Science

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Título:
Jumping on water: Surface tension–dominated jumping of water striders and robotic insects
Autor: Koh, Je-Sung ; Yang, Eunjin ; Jung, Gwang-Pil ; Jung, Sun-Pill ; Son, Jae Hak ; Lee, Sang-Im ; Jablonski, Piotr G. ; Wood, Robert J. ; Kim, Ho-Young ; Cho, Kyu-Jin
Assuntos: Araneae ; Arthropoda ; Arthropods ; Automation ; Biomechanics ; Breaking ; Hydrodynamics ; Insects ; Jumping ; Legs ; Momentum transfer ; Motion ; Movement ; Robots ; Surface tension ; Water
É parte de: Science (American Association for the Advancement of Science), 2015-07, Vol.349 (6247), p.517-521
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: Jumping on water is a unique locomotion mode found in semi-aquatic arthropods, such as water striders. To reproduce this feat in a surface tension–dominant jumping robot, we elucidated the hydrodynamics involved and applied them to develop a bio-inspired impulsive mechanism that maximizes momentum transfer to water. We found that water striders rotate the curved tips of their legs inward at a relatively low descending velocity with a force just below that required to break the water surface (144 millinewtons/meter). We built a 68-milligram at-scale jumping robotic insect and verified that it jumps on water with maximum momentum transfer. The results suggest an understanding of the hydrodynamic phenomena used by semi-aquatic arthropods during water jumping and prescribe a method for reproducing these capabilities in artificial systems.
Editor: Washington: American Association for the Advancement of Science
Idioma: Inglês

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Jumping on water: Surface tension–dominated jumping of water striders and robotic insects

Koh, Je-Sung ; Yang, Eunjin ; Jung, Gwang-Pil ; Jung, Sun-Pill ; Son, Jae Hak ; Lee, Sang-Im ; Jablonski, Piotr G. ; Wood, Robert J. ; Kim, Ho-Young ; Cho, Kyu-Jin

Washington: American Association for the Advancement of Science

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