Design and Supporting Force Experimental for the Bionic Water Strider Model

Abstract:

A bionic water strider model was designed and fabricated, which has four supporting legs with length of 52mm. Supporting legs were made of copper wire with diameter of 0.45mm, through superhydrophobic treatment for copper surface, whose contact angle is 154.3 °. By experimental measurement, the maximum supporting force of bionic water strider model on water surface is 28.5mN, which is 5.6 times its own weight. Adjusting supporting legs spacing, it can affect supporting force of the bionic water strider model on water surface. Experimental determination, the distance of the supporting legs should be larger than 8mm.

• Periodical: Applied Mechanics and Materials (Volume 459)
• Pages: 543-546
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.459.543
• Online since: October 2013
• Authors: Qing Cheng Wang, Xiao Dong Yang, Zhuo Juan Yang
• Keywords: Superhydrophobic, Supporting Force, Supporting Legs, Water Strider Model

References

[1] David L Hu, Brian Chan, John W.M. Bush. The hydrodynamics of water strider locomotion. Nature, 2003, 424 (6949): 663-666.

DOI: 10.1038/nature01793

[2] Gao Xuefeng, Jiang Lei. Water-repellent legs of water striders. Nature, 2004, 432: 26.

DOI: 10.1038/432036a

[3] Pan Qinmin , Liu Jia, Zhu Qing. A water strider-like model with large and stable loading capacity fabricated from super hydrophobic copper foils. Applied Materials & Interfaces, 2010, 2(7): 2026-(2030).

DOI: 10.1021/am100308z

[4] Liu Jianlin, Feng Xiqiao, Wang Gangfeng. Buoyant force and sinking conditions of a hydrophobic thin rod floating on water. Physical Review E, 2007, 76: 066103.

DOI: 10.1103/physreve.76.066103

[5] Wang Shuhui , Wu Licheng. Statics analysis on the leg of water strider robot . Journal of Beijing University of Aeronautis and Astronautis, 2010，36(10): 1176-1179.