The octopus arm has attracted many researchers� interests and became a research hot spot because of its amazing features. Several\ndynamic models inspired by an octopus arm are presented to realize the structure with a large number of degrees of freedom. The\noctopus arm is made of a soft material introducing high-dimensionality, nonlinearity, and elasticity, which makes the octopus arm\ndifficult to control. In this paper, three coupled central pattern generators (CPGs) are built and a 2-dimensional dynamic model\nof the octopus arm is presented to explore possible strategies of the octopus movement control. And the CPGs� signals treated as\nactivation are added on the ventral, dorsal, and transversal sides, respectively.The effects of the octopus arm are discussed when\nthe parameters of the CPGs are changed. Simulations show that the octopus arm movements are mainly determined by the shapes\nof three CPGs� phase diagrams. Therefore, some locomotion modes are supposed to be embedded in the neuromuscular system\nof the octopus arm. And the octopus arm movements can be achieved by modulating the parameters of the CPGs. The results are\nbeneficial for researchers to understand the octopus movement further.
Loading....