Mr. Takahiro Homma Profile

Takahiro Homma

at Tokyo Denki Univ

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Proceedings Article | 26 March 2015 Paper

Motion generation of peristaltic mobile robot with particle swarm optimization algorithm

Takahiro Homma, Norihiro Kamamichi

Proceedings Volume 9429, 94291D (2015) https://doi.org/10.1117/12.2084112

KEYWORDS: Robots, Mobile robots, Particle swarm optimization, Motion models, Particles, Motion analysis, Numerical simulations, Wave propagation, Optimization (mathematics), Mathematical modeling

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In developments of robots, bio-mimetics is attracting attention, which is a technology for the design of the structure and function inspired from biological system. There are a lot of examples of bio-mimetics in robotics such as legged robots, flapping robots, insect-type robots, fish-type robots. In this study, we focus on the motion of earthworm and aim to develop a peristaltic mobile robot. The earthworm is a slender animal moving in soil. It has a segmented body, and each segment can be shorted and lengthened by muscular actions. It can move forward by traveling expanding motions of each segment backward. By mimicking the structure and motion of the earthworm, we can construct a robot with high locomotive performance against an irregular ground or a narrow space. In this paper, to investigate the motion analytically, a dynamical model is introduced, which consist of a series-connected multi-mass model. Simple periodic patterns which mimic the motions of earthworms are applied in an open-loop fashion, and the moving patterns are verified through numerical simulations. Furthermore, to generate efficient motion of the robot, a particle swarm optimization algorithm, one of the meta-heuristic optimization, is applied. The optimized results are investigated by comparing to simple periodic patterns.

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