Experimental Verification of Adaptive Function Inherent in Passive Dynamic Walking and Walking Motion Stabilization Applying the Function

2020 ◽  
Vol 56 (12) ◽  
pp. 551-559
Author(s):  
Masatsugu IRIBE ◽  
Ryoichi HIROUJI ◽  
Daisuke URA ◽  
Koichi OSUKA ◽  
Tetsuya KINUGASA
Author(s):  
Masatsugu Iribe ◽  
Ryoichi Hirouji ◽  
Daisuke Ura ◽  
Koichi Osuka ◽  
Tetsuya Kinugasa

AbstractIt is well known that passive dynamic walking shows chaotic behavior owing to changes in the environment. In addition, when the environment changes continuously during walking, passive dynamic walking shows “adaptive behaviors” in which the stride angle changes itself in an attempt to keep walking. These behaviors are very interesting and useful for the legged robot design. However, the studies on passive dynamic walking are preceded only by numerical simulations. For this reason, it is very important to confirm, by actual experiments, whether these characteristic behaviors appear. In this paper, we verify the existence of these behaviors by several actual experiments.


ROBOT ◽  
2010 ◽  
Vol 32 (4) ◽  
pp. 478-483 ◽  
Author(s):  
Xiuhua NI ◽  
Weishan CHEN ◽  
Junkao LIU ◽  
Shengjun SHI

Robotica ◽  
2013 ◽  
Vol 31 (8) ◽  
pp. 1221-1227 ◽  
Author(s):  
Wenhao Guo ◽  
Tianshu Wang ◽  
Qi Wang

SUMMARYThis paper presents a modified passive dynamic walking model with hip friction. We add Coulomb friction to the hip joint of a two-dimensional straight-legged passive dynamic walker. The walking map is divided into two parts – the swing phase and the impact phase. Coulomb friction and impact make the model's dynamic equations nonlinear and non-smooth, and a numerical algorithm is given to deal with this model. We study the effects of hip friction on gait and obtain basins of attraction of different coefficients of friction.


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