@Article{benallegue:ijrr:2020, author = {Benallegue, Mehdi and Laumond, Jean-Paul and Berthoz, Alain}, title = {On the mechanical contribution of head stabilization to passive dynamics of anthropometric walkers}, journal = {The International Journal of Robotics Research}, year = {2020}, volume = {39}, number = {4}, pages = {461--475}, month = {March}, doi = {https://doi.org/10.1177/0278364919894387}, url = {https://journals.sagepub.com/doi/pdf/10.1177/0278364919894387}, keywords = {Humanoid robots, legged robots, biomimetics}, abstract = {During the steady gait, humans stabilize their head around the vertical orientation. While there are sensori-cognitive explanations for this phenomenon, its mechanical e fect on the body dynamics remains un-explored. In this study, we take profit from the similarities that human steady gait share with the locomotion of passive dynamics robots. We introduce a simplified anthropometric D model to reproduce a broad walking dynamics. In a previous study, we showed heuristically that the presence of a stabilized head-neck system significantly influences the dynamics of walking. This paper gives new insights that lead to understanding this mechanical e fect. In particular, we introduce an original cart upper-body model that allows to better understand the mechanical interest of head stabilization when walking, and we study how this e fect is sensitive to the choice of control parameters.}, publisher = {Sage Publications Ltd}, address = {1 Olivers Yard, 55 City Road, London EC1Y 1SP, England} }