DocumentCode :
3450931
Title :
A bio-mimetic pipe crawling microrobot driven based on self-excited vibration
Author :
Li, Chaodong ; He, Xiaojing
Author_Institution :
Sch. of Mech. & Electron. Eng. & Autom., Shanghai Univ., Shanghai
fYear :
2007
fDate :
15-18 Dec. 2007
Firstpage :
984
Lastpage :
988
Abstract :
The pipe crawling micro-robot based on self-excited vibration is proposed and prototyped according to the bionics principles. Its significance lies in improving driving efficiency and reducing power consumption. A linear electromagnetic solenoid is utilized as actuator of the robot. Since the driving joints of pipe crawling robots have different force characteristics during moving process, the dynamic model is established stage by stage, and then the numerical value simulation is carried out by computer. The results show that the energy of system can reach maximum by self-excited vibration if robot works nearly at the resonance frequency. A closed-loop system of self-excited vibration with amplitude feedback near the resonance point is designed. The experiment on prototype indicates that this pipe crawling robot can move forward, draw back and climb very flexibly at the speed, which is 7~8 times of the speed of open-loop controlled peristaltic pipe crawling robot.
Keywords :
biomimetics; closed loop systems; feedback; microrobots; open loop systems; pipes; solenoids; vibration control; amplitude feedback; biomimetic pipe crawling microrobot; bionics principles; closed-loop system; linear electromagnetic solenoid; open-loop controlled peristaltic pipe crawling robot; resonance frequency; selfexcited vibration; Computational modeling; Electromagnetic forces; Energy consumption; Hydraulic actuators; Numerical simulation; Power system modeling; Prototypes; Resonance; Robots; Solenoids; Bio-mimetic Robot; Electromagnetic Solenoid; Pipe Crawling Micro-robot; Self-excited Vibration;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Robotics and Biomimetics, 2007. ROBIO 2007. IEEE International Conference on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-1761-2
Electronic_ISBN :
978-1-4244-1758-2
Type :
conf
DOI :
10.1109/ROBIO.2007.4522297
Filename :
4522297
Link To Document :
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