EFFECT OF ELECTRICAL CABLE ON MOVEMENT-RANGE OF AGNETIC ACTUATOR SYSTEM CAPABLE OF INSPECTION IN A PIPE
DOI:
https://doi.org/10.15282/jmes.7.2014.1.0099Keywords:
Magnetic actuator system; pipe inside mover; frictional force; inspectionAbstract
This paper proposes a magnetic actuator system of a new type capable of inspection in a complex pipe by means of a new motion principle. Using plural vibration components, the magnetic actuator is able to move in the complex pipe. A magnetic actuator of the reversible type, due to opening and closing of a compound material by using elongation and contraction of four shape-memory-alloy (SMA) coils, was fabricated. In this paper, the influence of the electrical cable length on the moving characteristics of the magnetic actuator is discussed. Twenty electrical cables of 0.12 mm diameter were used in this paper. The experimental result shows that the prototype actuator was able to climb at 15.3 mm/s in the straight pipe when pulling a load mass of 50 g. In addition, the result demonstrated that the magnetic actuator system was able to inspect the complex pipe over a distance of 10 m. This actuator system can inspect a complex pipe with an inside diameter from 40 mm to 50 mm. In addition, the actuator system was able to inspect the pipe with a simple apparatus of three amplifiers and one signal generator.
References
Saito H, Sato K, Kudo K, Sato K. Fundamental study of mover travel inside a small diameter pipe. Transactions of the Japan Society of Mechanical Engineers. 2000;66:346-53.
Fujita J, Shiraogawa Y, Yamamoto S, Kato T. Study of mobile mechanism with elastic fibers by using vibration. Transactions of the Japan Society of Mechanical Engineers. 2004;70:22-6.
Jamil N, Yusoff AR, Mansor MH. Literature review of electromagnetic actuator force generation for dynamic modal testing applications. Journal of Mechanical Engineering and Sciences. 2012;3:311-9.
Reynaerts D, Peirs J, Van Brussel H. Design of a shape memory actuated gastrointestinal intervention system. Eurosensors X. 1996:1181-4.
Kwon J, Park S, Kim B, Park J-O. Bio-material property measurement system for locomotive mechanism in gastro-intestinal tract. IEEE International Conference on Robotics and Automation. 2005, p. 1315-20.
Suzumori K, Wakimoto S, Tanaka M. In pipe inspection micro robot adaptable to changes in pipe diameter. IEEE International Conference on Robotics and Automation. 2003, p. 2735-40.
Guo S, Pan Q. A paddling type of microrobot in pipe. International Conference on Intelligent Robots and Systems. 2005, p. 2265-70.
Brunete I, Torres, J., Hernando, M. & Gambao, E. A 2 DOF servomotor-based module for pipe inspection modular micro-robots. International Conference on Intelligent Robots and Systems. 2006.
Choi H, Roh S. In-pipe robot with active steering capability for moving inside of pipelines. Bioinspiration and Robotics Walking and Climbing Robots. 2007;23:375-400.
Miyagawa T, Iwatsuki N. Moving characteristics in bent pipes of in-pipe mobile robot with wheel drive mechanism using planetary gear drive. Journal of the Japan Society for Precision Engineering. 2008;74:1346-50.
Bocko J, Kelemen M, Kelemenova T, Jezný J. Wheeled locomotion inside pipe. Bulletin of Applied Mechanics. 2009;5:34-6.
Yaguchi H, Sato N. Globular magnetic actuator capable of free movement in a complex pipe. IEEE Transactions on Magnetics. 2010;46:1350-5.
Yaguchi H, Sato N, Shikoda A. Magnetic actuator group of globular type capable of free movement in a complex pipe. IEEE Transactions on Magnetics. 2011;47:4159-62.
Yaguchi H, Kamata K. In-piping magnetic actuator capable of inspection in a thin complex pipe. Mechanical Engineering Research. 2012;2:1-9.
Yaguchi H, Sasaki K. New type of magnetic actuator system for inspection in a complex pipe. IEEE Transactions on Magnetics. 2013;49:3905-8.
