Study on bio-jumping mechanism inspired from locust take-off jumping mechanism

NI Hong;ZHEN Yong-qian;WANG Yan-cheng;MEI De-qing;CHEN Zi-chen

Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (2) : 7-13.

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PDF(3014 KB)
Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (2) : 7-13.
论文

Study on bio-jumping mechanism inspired from locust take-off jumping mechanism

  • NI Hong1,2, ZHEN Yong-qian1,WANG Yan-cheng1, MEI De-qing1, CHEN Zi-chen1
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Abstract

A bio-jumping mechanism inspired from locust take-off mechanism is designed and fabricated. Firstly, the kinematics and mechanical characteristics of the locusts’ take-off phase were investigated by high-speed camera experimental study. The results show that the locust saltatorial leg has a non-linear force output characteristic in take-off phase, which could effectively avoid the impact of instantaneous force changes. Then, a bio-jumping mechanism inspired from locust take-off mechanism was designed. By adopting a six link mechanism as the saltatorial leg and a linear spring as storage mechanism, the linear force generated by the spring can be converted into nonlinear output force of foot. Finally, a prototype of bio-jumping mechanism was developed and the experiments for the take-off phase were carried out. The experimental results show that the designed bio-jumping mechanism has the similar movement characteristics as that of the locust during take-off phase, and it can realize relative to 129% of its own jumping height. The results provide a new approach for design of the jumping robot.



Key words

jumping mechanism / bio-inspired / locust / non-linear

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NI Hong;ZHEN Yong-qian;WANG Yan-cheng;MEI De-qing;CHEN Zi-chen. Study on bio-jumping mechanism inspired from locust take-off jumping mechanism[J]. Journal of Vibration and Shock, 2014, 33(2): 7-13
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