Undulatory gait planning method of multi-legged robot with passive-spine

Abstract

In this paper, we propose a new gait planning method for a multi-legged robot which has only 1 degree-of-freedom in each leg and has a passive body joint between two body segments. We firstly introduce the Finite State Machine (FSM) to the undulatory gait planning method of the 2n-legged robot. Then, the undulatory gait sequence for straight line motion is achieved by undulations motion. The idea that legged locomotion is achievable by less actuation of 2n-legged robot as well as the gait planning methods are verified finally by simulations and experiments.