Optimization of legged robot locomotion by control of foot-force distribution

2004 ◽  
Vol 26 (4) ◽  
pp. 311-323 ◽  
Author(s):  
W. Y. Jiang ◽  
A. M. Liu ◽  
D. Howard
1992 ◽  
Vol 29 (4-5) ◽  
pp. 497-514 ◽  
Author(s):  
Chun Qi Zheng ◽  
Shin-Min Song ◽  
G.E.O. Widera

Author(s):  
Xiaochun Gao ◽  
Shin-Min Song

Abstract Unlike in wheeled vehicles, compliance in walking machine systems changes due to the variation of leg geometry, as its body proceeds. This variation in compliance will cause vibration, even if external loads remain constant. A theory is thus developed to predict the body vibrations of a walking machine during walking. On the other hand, dynamic foot forces under body vibrations can be computed by application of the existing numerical methods. As an example, the body vibrations of a quadrupedal walking chair under different walking conditions are simulated in terms of the developed theory. The results show that the influence of body vibrations on the foot force distribution is essential and, in some cases, the walking chair may lose its stability due to its body vibrations, even though it is identified to be stable in a quasi-static analysis. The developed theory can also be extended to other similar multi-limbed robotic systems, such as multi-fingered robot hands.


2019 ◽  
Vol 16 (4) ◽  
pp. 621-632 ◽  
Author(s):  
Teng Chen ◽  
Xiaobo Sun ◽  
Ze Xu ◽  
Yibin Li ◽  
Xuewen Rong ◽  
...  

Mechatronics ◽  
2003 ◽  
Vol 13 (8-9) ◽  
pp. 907-932 ◽  
Author(s):  
Jose A Galvez ◽  
Joaquin Estremera ◽  
Pablo Gonzalez de Santos

2020 ◽  
Vol 10 (2) ◽  
pp. 540
Author(s):  
Sebastian Klich ◽  
Biye Wang ◽  
Aiguo Chen ◽  
Jun Yan ◽  
Adam Kawczyński

The purpose of the present study was to investigate the changes in plantar foot force distribution (i.e., the percentage of force and force distribution under the rearfoot and forefoot) and plantar pressure pain sensitivity maps in professional futsal players after long-term low-dye taping (LDT). The subjects (n = 25) were male futsal players (age 23.03 ± 1.15 years). During the experiment, a nonelastic tape was applied on the plantar foot surface according to the standards of LDP. The experimental protocol consisted of a 3-day cycle during which the plantar foot force distribution (FFD) and plantar pressure pain threshold (PPT) were measured: (1) before the tape was applied, (2) 24 h after application, and (3) 72 h after application. The results revealed a significant decrease in the force distribution under the rearfoot (p ≤ 0.001) and forefoot (p ≤ 0.001) on the right and left sides. Moreover, the results showed an increase in the plantar pressure pain threshold in all regions of the foot (p ≤ 0.001). The results of this study suggest that plantar fascial taping can be an effective method for normalizing the force distribution on the foot and reducing the plantar pain threshold. The findings provide useful information regarding the prevention of and physical therapy of lower extremity injuries in soccer and futsal.


1992 ◽  
Vol 4 (3) ◽  
pp. 356-365 ◽  
Author(s):  
Randall D. Beer ◽  
Hillel J. Chiel ◽  
Roger D. Quinn ◽  
Kenneth S. Espenschied ◽  
Patrik Larsson

We present fully distributed neural network architecture for controlling the locomotion of a hexapod robot. The design of this network is directly based on work on the neuroethology of insect locomotion. Previously, we demonstrated in simulation that this controller could generate a continuous range of statically stable insect-like gaits as the activity of a single command neuron was varied and that it was robust to a variety of lesions. We now report that the controller can be utilized to direct the locomotion of an actual six-legged robot, and that it exhibits a range of gaits and degree of robustness in the real world that is quite similar to that observed in simulation.


Author(s):  
Sylvain Bertrand ◽  
Inho Lee ◽  
Bhavyansh Mishra ◽  
Duncan Calvert ◽  
Jerry Pratt ◽  
...  

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