著者

亀川 哲志 北郷 淳一 五福 明夫

出版者

一般社団法人 日本ロボット学会

雑誌

日本ロボット学会誌 (ISSN:02891824)

巻号頁・発行日

vol.35, no.4, pp.317-326, 2017 (Released:2017-06-15)

参考文献数

18

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We focus on a quadruped robot as a mobile platform which would work at various environment such as disaster sites, offices and factories. In this paper, we assume that terrain consists of slopes and we propose a walking gait for a quadruped robot on unknown slopes. In this method, the robot basically walks in trot gait because trot gait has both high stability and practical walking speed in order to walk stably on steep slopes. At first, robot estimates slant of the slope by using body attitude and foot positions on the slope. Then it generates walking pattern for the robot to walk stably on the slope by using inverted pendulum model and multi-mass model of the robot. The proposed method was verified through experiments with a quadruped robot TITAN-VIII walked on slopes where a step or other slope exist halfway.

著者

藤原 始史 竹森 達也 斉 偉 亀川 哲志 鈴木 陽介 坂東 宜昭 奥乃 博 松野 文俊

出版者

システム制御情報学会

雑誌

システム制御情報学会研究発表講演会講演論文集

巻号頁・発行日

vol.62, 2018-05-16

著者

五福 明夫 単 万里 柴田 光宣 山西 輝裕 亀川 哲志

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集C編 (ISSN:18848354)

巻号頁・発行日

vol.77, no.778, pp.2400-2406, 2011 (Released:2011-06-25)

参考文献数

13

被引用文献数

2

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This study develops a mixing machine driven by a spherical motor that can rotate around any axis. The developed mixing machine is composed of a rotor, a stator, a control PC, an electro-magnet excitation circuit, and a power supply. The rotor that its outer diameter is 200 [mm] is composed of double spherical shells in order to contain liquid in its inner spherical shell. Totally 91 permanent magnets are arranged in almost spherical symmetry on the inner surface of the outer spherical shell. On the other hand, 80 electro-magnets are arranged on the stator of a semi-spherical shell. The applicability of the mixing machine to material production under the condition of small influence of gravitational force is evaluated by mixing experiments to dissolve salt of 50 [g] in water of 200 [g]. The mixing performance is compared for five mixing methods. The results show that the mixing performance of the method to change randomly the rotation direction is only slightly lower than that of the method of rotating continuously around a horizontal axis that exhibits the highest mixing performance.