A Multifunctional Underwater Biomimetic Microrobot

Robots play an important role in underwater monitoring and recovery operations, such as pollution detection, submarine sampling and data collection, video mapping, and object recovery in dangerous places. However, regular-sized robots may not be suitable for applications in some restricted underwater environments. Accordingly, in previous research we designed several novel types of bio-inspired microrobots, using ionic polymer metal composite (IPMC) and shape memory alloy (SMA) actuators. These microrobots possess some of the attributes of compact structure, multifunctionality, flexibility, and precise positioning. However, they lack the attributes of long endurance, stable high speed, and large load capacity necessary for real-world applications. To overcome these disadvantages, we propose a mother–son robot system, composed of several microrobots as sons and a newly designed amphibious spherical robot as the mother. In this system, the mother robot is actuated by four water-jet propellers and eight servomotors, capable of providing stable high speed and carrying the microrobots to the desired target location where tasks are to be performed. Generally speaking, compact structure, multifunctionality, and precise positioning are considered incompatible characteristics for underwater microrobots. To realize the necessary multifunctionality for adapting to complex underwater environments, we introduce a walking biomimetic microrobot with two kinds of motion attitudes: a lying state and a standing state. The microrobot uses eleven IPMC actuators to move and two SMA actuators to change its motion attitude. In the lying state, the microrobot implements stick-insect-inspired walking/rotating motion, fishlike swimming motion, horizontal grasping motion, and floating motion. In the standing state, it implements inchworm-inspired crawling motion in two horizontal directions and grasping motion in the vertical direction. We constructed a prototype of this biomimetic microrobot and evaluated its walking, rotating, and floating speeds experimentally. The experimental results indicated that the robot could attain a maximum walking speed of 3.6 mm/s, a maximum rotational speed of 9 °/s, and a maximum floating speed of 7.14 mm/s. Obstacle-avoidance and swimming experiments were also carried out to demonstrate its multifunctionality.

[1]  Dominique Valentian,et al.  Multi-Channel Hall-Effect Thrusters: Mission Applications and Architecture Trade-Offs , 2007 .

[2]  Sheng Liu,et al.  Extensional ionomeric polymer conductor composite actuators with ionic liquids , 2008, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[3]  Shuxiang Guo,et al.  A novel butterfly-inspired underwater microrobot with pectoral fins , 2011, 2011 IEEE International Conference on Mechatronics and Automation.

[4]  Shuxiang Guo,et al.  Experiments and characteristics analysis of a bio-inspired underwater microrobot , 2009, 2009 International Conference on Mechatronics and Automation.

[5]  Kinji Asaka,et al.  Biped walking of passive dynamic walker with IPMC linear actuator , 2003, SICE 2003 Annual Conference (IEEE Cat. No.03TH8734).

[6]  Shuxiang Guo,et al.  Development of a New Jellyfish-Type Underwater Microrobot , 2011, Int. J. Robotics Autom..

[7]  Shuxiang Guo,et al.  Development of a Spherical Underwater Robot Equipped with Multiple Vectored Water-Jet-Based Thrusters , 2012, J. Intell. Robotic Syst..

[8]  Shuxiang Guo,et al.  Development of a Venus flytrap-inspired robotic flytrap , 2012, 2012 IEEE International Conference on Robotics and Biomimetics (ROBIO).

[9]  Shuxiang Guo,et al.  Development of an Infrared Ray controlled fish-like underwater microrobot , 2010, 2010 IEEE International Conference on Automation and Logistics.

[10]  Byungkyu Kim,et al.  A biomimetic undulatory tadpole robot using ionic polymer–metal composite actuators , 2005 .

[11]  G. M. Spinks,et al.  Fast bender actuators for fish-like aquatic robots , 2008, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[12]  Shuxiang Guo,et al.  A Novel Soft Biomimetic Microrobot with Two Motion Attitudes , 2012, Sensors.

[13]  Shuxiang Guo,et al.  Development of an amphibious mother spherical robot used as the carrier for underwater microrobots , 2012, 2012 ICME International Conference on Complex Medical Engineering (CME).

[14]  Shuxiang Guo,et al.  A new type of hybrid fish-like microrobot , 2006, Int. J. Autom. Comput..

[15]  Metin Sitti,et al.  Design Methodology for Biomimetic Propulsion of Miniature Swimming Robots , 2004 .

[16]  Shuxiang Guo,et al.  A biomimetic underwater microrobot with multifunctional locomotion , 2012, Robotics Auton. Syst..

[17]  Shuxiang Guo,et al.  Design and realization of a remote control centimeter-scale robotic fish , 2008, 2008 IEEE/ASME International Conference on Advanced Intelligent Mechatronics.

[18]  Shuxiang Guo,et al.  Design and kinematic analysis of an amphibious spherical robot , 2012, 2012 IEEE International Conference on Mechatronics and Automation.

[19]  Kinji Asaka,et al.  A snake-like swimming robot using IPMC actuator/sensor , 2006, Proceedings 2006 IEEE International Conference on Robotics and Automation, 2006. ICRA 2006..

[20]  Kai Xiao,et al.  A micro-robot fish with embedded SMA wire actuated flexible biomimetic fin , 2008 .

[21]  Shuxiang Guo,et al.  Development of an Amphibious Turtle-Inspired Spherical Mother Robot , 2013 .

[22]  S. Priya,et al.  A bio-inspired shape memory alloy composite (BISMAC) actuator , 2010 .

[23]  Shuxiang Guo,et al.  A Novel Jellyfish- and Butterfly-Inspired Underwater microrobot with pectoral fins , 2012, Int. J. Robotics Autom..

[24]  Hoon Cheol Park,et al.  Effect of an artificial caudal fin on the performance of a biomimetic fish robot propelled by piezoelectric actuators , 2007 .

[25]  Shuxiang Guo,et al.  A bio-inspired underwater microrobot with compact structure and multifunctional locomotion , 2011, 2011 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM).

[26]  W. Yim,et al.  An artificial muscle actuator for biomimetic underwater propulsors , 2007, Bioinspiration & biomimetics.

[27]  Shuxiang Guo,et al.  Development of an underwater biomimetic microrobot with compact structure and flexible locomotion , 2007 .

[28]  Kyu-Jin Cho,et al.  Review of biomimetic underwater robots using smart actuators , 2012 .

[29]  Shuxiang Guo,et al.  Modeling and experiments of IPMC actuators for the position precision of underwater legged microrobots , 2012, 2012 IEEE International Conference on Automation and Logistics.

[30]  K. Kim,et al.  Modeling and experiment of a muscle-like linear actuator using an ionic polymer?metal composite and its actuation characteristics , 2007 .

[31]  Xiufen Ye,et al.  Motion-control analysis of ICPF-actuated underwater biomimetic microrobots , 2011, Int. J. Mechatronics Autom..

[32]  C. Tsui,et al.  Numerical simulation of dynamic electro-mechanical response of ionic polymer-metal composites , 2011 .

[33]  Xiu Fen Ye,et al.  Driving mechanism of a new jellyfish-like microrobot , 2008, 2008 IEEE International Conference on Mechatronics and Automation.

[34]  Rinaldo C. Michelini,et al.  Conceptual Design of an AUV Equipped with a Three Degrees of Freedom Vectored Thruster , 2004, J. Intell. Robotic Syst..

[35]  Kwang J. Kim,et al.  The mechanical properties of ionic polymer-metal composites , 2007, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[36]  Shuxiang Guo,et al.  A smart actuator-based underwater microrobot with two motion attitudes , 2012, 2012 IEEE International Conference on Mechatronics and Automation.

[37]  Shuxiang Guo,et al.  of Advanced Robotic Systems Development of a Lobster-Inspired Underwater Microrobot Regular Paper , 2012 .

[38]  M. Yamakita,et al.  Integrated Actuator-Sensor System on Patterned IPMC Film : Consideration of Electoric Interference , 2007, 2007 IEEE International Conference on Mechatronics.

[39]  Shuxiang Guo,et al.  Dynamic mechanics and electric field analysis of an ICPF actuated fish-like underwater microrobot , 2011, 2011 IEEE International Conference on Automation and Logistics (ICAL).

[40]  Shuxiang Guo,et al.  A novel multifunctional underwater microrobot , 2010, 2010 IEEE International Conference on Robotics and Biomimetics.