3D Modelling of Biped Robot Locomotion with Walking Primitives Approach in Simulink Environment

In the past decades bipedal robots related research gained significant attention as the technology progresses towards acceptable humanoid robot assistants. Serious challenges of human-like biped robot locomotion include such issues as obtaining a human gait multi-functionality, energy efficiency and flexibility. In this paper we present Russian biped robot AR-601M and its locomotion modelling in Simulink environment using walking primitives approach. We consider two robot models: with 6 and 12 Degrees of Freedom (DoFs) per legs, using the same walking strategies. While the 6-DoF model is constrained to move only in sagittal plan, the 12-DoF model supports 3D motion and precisely reflects the hardware of AR-601M robot legs. The locomotion algorithm utilizes position control and involves inverse kinematics computations for the joints. The resulting simulation of robot locomotion is dynamically stable for both models at a small step length and short step time with relatively long damping pauses between the steps.

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