吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (04): 976-982.doi: 10.7964/jdxbgxb201304022

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Structure design and performance analysis of bionic desert hiking stick

ZHANG Rui, ZHANG Si-hua, LIU Fang, LI Jian-qiao   

  1. Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022,China
  • Received:2012-06-14 Online:2013-07-01 Published:2013-07-01

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Abstract:

As an auxiliary tool for traveling, hiking stick is very useful for travelers, in particularly for desert hiking. A bionic desert hiking stick was developed inspired by the structure, morphology and excellent travelling mechanism of ostrich foot on sand. This design has a stick tray on the tip that mimics the foot pad of ostrich, which possesses excellent characteristics of san fixation and anti-sinkage. The structure of the bionic stick tray and the contacting area between the tray and sand could be automatically adjusted with the changes of vertical load of the stick and the rigidity of sand. Using Discrete Element Method (DEM) software PFC2D®, the interaction between the bionic stick and sand at three different work states, including the initial contacting sand state, the middle load bearing state and the ultimate load bearing state, were numerically investigated. Simulation results show that, compared with common desert hiking sticks, the bionic hiking stick possesses the excellent characteristics of sand flow fixation, anti-sinkage and high load bearing capacity.

Key words: bionic engineering, didactyl foot of ostrich, bionic hiking stick on sand, sand flow fixation, numerical simulation

CLC Number: 

  • TB17

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