Stabilization of the passive walking dynamics of the compass-gait biped robot by developing the analytical expression of the controlled Poincaré map

W Znegui, H Gritli, S Belghith - Nonlinear Dynamics, 2020 - Springer
The compass-gait biped robot is a two-DoF legged mechanical system that has been known
by its passive dynamic walking. This kind of passive biped robot is modeled by an impulsive …

Complex dynamics of the passive biped robot with flat feet: Gait bifurcation, intermittency and crisis

Z Liu, J Gao, X Rao, S Ding, D Liu - Mechanism and Machine Theory, 2024 - Elsevier
During the past decades, the walking dynamics of different types of passive biped robots
have garnered significant attention. This paper investigates the complex dynamics of a …

Trajectory tracking-based control of the chaotic behavior in the passive bipedal compass-type robot

E Added, H Gritli, S Belghith - The European Physical Journal Special …, 2022 - Springer
This paper deals mainly with the control of the complex and rhythmic behaviors of the
passive dynamic walk of the bipedal compass-type robot. The walking gait of such biped …

Gait cycles of passive walking biped robot model with flexible legs

M Safartoobi, M Dardel, HM Daniali - Mechanism and Machine Theory, 2021 - Elsevier
Passive dynamic walking of bipeds exhibits a new concept of robot locomotion that is well-
known for its success in human mimicry. Many efforts have been devoted in the literature to …

Further analysis of the passive dynamics of the compass biped walker and control of chaos via two trajectory tracking approaches

E Added, H Gritli, S Belghith - Complexity, 2021 - Wiley Online Library
This work consists in analyzing and controlling the walk of the compass‐type bipedal walker
in order to stabilize its passive dynamic gait. The dynamic walking of the compass‐gait …

Multistability of gaits, the basin of attraction and its external topology in the simplest passive walking model on stairs

XB Rao, JS Gao, SL Ding, J Liang, J Zhang - Chaos, Solitons & Fractals, 2023 - Elsevier
For the passive walking robot, the basin of attraction is very small and thin, and thus makes it
a great challenge to produce stable passive dynamic walking. This paper reports …

Occurrence of complex behaviors in the uncontrolled passive compass biped model

E Added, H Gritli, S Belghith - Chaos Theory and Applications, 2022 - dergipark.org.tr
It is widely known that an appropriately built unpowered bipedal robot can walk down an
inclined surface with a passive steady gait. The features of such gait are determined by the …

Piezoelectric energy harvesting from walking motion of a passive biped robot model with flexible legs

M Safartoobi, M Dardel, HM Daniali - Chaos, Solitons & Fractals, 2024 - Elsevier
Passive dynamic walking biped robots utilize the inherent dynamics of their structure to
achieve walking motion without continuous actuation, enhancing energy efficiency and …

Additional complex behaviors, bifurcations and chaos, in the passive walk of the compass-type bipedal robot

E Added, H Gritli, S Belghith - IFAC-PapersOnLine, 2021 - Elsevier
The compass-type bipedal robot is an impulsive hybrid mechanical system that can produce
complex behaviors, chaos and bifurcations. In this work, we analyze the passive dynamic …

Periodic gaits and flip bifurcation of a biped robot walking on level ground with two feasible switching patterns of motion

G Zhou, B Jiang, T Long… - Proceedings of the …, 2023 - royalsocietypublishing.org
In this article, a biped robot walking on horizontal ground with two feasible switching
patterns of motion (two-phase gait and three-phase gait) is presented. By using the first …