Design of six-legged walking robot, Little Crabster for underwater walking and operation

This paper describes the development of a ground test robot platform to study a multi-legged walking robot capable of precise proximity exploration and operations under a shallow sea in the presence of a strong tidal current environment. For both underwater walking and complex operations, a six-legged robot that uses two legs as manipulators during underwater operations is proposed. The dimensions, joint structure, range of motion, and mass distribution of the robot are determined by considering biological data, and then suitable joint actuators are chosen through a simple force analysis. In addition, a main controller, a communication bus, motor controllers, sensors, and a battery are chosen to build the whole control system. The detailed design is performed using 2D/3D computer aided design (CAD) software, and the robot is finally built by machining the parts and assembling them. The degree of design completion is proved by basic walking experiments and future works are addressed. Graphical Abstract

[1]  Bong-Huan Jun,et al.  Design, Implementation and Free Running Test of ISiMI; an AUV for Cruising in Ocean Engineering Basin Environment , 2007, OCEANS 2007 - Europe.

[2]  Hanumant Singh,et al.  Issues in AUV design and deployment for oceanographic research , 1997, Proceedings of International Conference on Robotics and Automation.

[3]  R. Wernli,et al.  ROV Technology Update From an International Perspective , 1984 .

[4]  Friedrich Pfeiffer,et al.  A design concept for legged robots derived from the walking stick insect , 1993, Proceedings of 1993 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS '93).

[5]  H. Sakai,et al.  Design concept of a prototype amphibious walking robot for automated shore line survey work , 2004, Oceans '04 MTS/IEEE Techno-Ocean '04 (IEEE Cat. No.04CH37600).

[6]  Friedrich Pfeiffer,et al.  The six-legged TUM walking robot , 1994, Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'94).

[7]  E. Omerdic,et al.  Design of an advanced AUV for deployment close to the seabed and other hazards , 2005, Europe Oceans 2005.

[8]  Toshinari Tanaka,et al.  Development of Automated Shoreline Surveying System Using Amphibious Walking Robot - The Design Concepts and the 1st Field Experiment - , 2006 .

[9]  Hidetoshi Takahashi,et al.  Development on Aquatic Walking Robot for Underwater Inspection , 1988 .

[10]  Full,et al.  Underwater punting by an intertidal crab: a novel gait revealed by the kinematics of pedestrian locomotion in air versus water , 1998, The Journal of experimental biology.

[11]  Taro Aoki,et al.  Development of deep sea free swimming ROV "UROV7K" , 1999, Oceans '99. MTS/IEEE. Riding the Crest into the 21st Century. Conference and Exhibition. Conference Proceedings (IEEE Cat. No.99CH37008).

[12]  V. S. Gurfinkel,et al.  The six-legged walking robot capable of terrain adaptation , 1983 .

[13]  Bong-Huan Jun,et al.  A new concept and technologies of multi-legged underwater robot for high tidal current environment , 2011, 2011 IEEE Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies.

[14]  J. Ayers.  Underwater walking. , 2004, Arthropod structure & development.

[15]  D. E. Okhotsimsky,et al.  Control Algorithm of the Walker Climbing Over Obstacles , 1973, IJCAI.