High Power Actuator Based on Magnetostrictive Composite Core with Temperature Drift Compensation

Abstract:

The paper presents an actuator based on a coil placed in the casing, with specially prepared connection rods. The construction allows installation of the fiber Bragg grating sensors inside the coil. It allows to measure deformation of the composite that is located in the core of the coil. Thanks to the signal generation with use of DASYLab software, it is possible to precisely control the frequency, value of amplitude excitation and to send the signal to the system with use of the measurement card. The main goal of the experiment is to keep constant value of deformation, by means of a feedback loop with use of PID control, and to change the initial conditions of the test by change of the external force. The system is designed to return to the initial settings by appropriate control of the intensity of magnetic field, and thus the deformation of the sample.

• Periodical: Key Engineering Materials (Volume 598)
• Pages: 69-74
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.598.69
• Online since: January 2014
• Authors: Jerzy Kaleta, Krzysztof Kot, Rafał Mech*, Przemyslaw Wiewiorski
• Keywords: Composite, Feedback Loop, Giant Magnetostriction, Smart Material, Terfenol-D

References

[1] G. Engdahl, Handbook of Giant Magnetostrictive Material, Academic Press, San Diego, 2000.

[2] J. Kaleta, D. Lewandowski, Inelastic properties of magnetorheological composites: I. Fab-rication, experimental tests, cyclic shear properties, Smart Materials and Structures, 16 (2007) 1948-1953.

DOI: 10.1088/0964-1726/16/5/052

[3] D. Kendall, A.R. Piercy, Terfenol-based materials with reduced eddy-current loss for high frequency applications, Ferroelectrics, 187 (1996) 153-161.

DOI: 10.1080/00150199608244851

[4] C.Y. Lo, S.W. Or, H.L.W. Chan, Large Magnetostriction in Epoxy-Bonded Terfenol-D Continuous-Fiber Composite With [112] Crystallographic Orientation. IEEE Trans. on Mag., 42 (2006) 3111-3113.

DOI: 10.1109/tmag.2006.878873

[5] G.P. McKnight, G.P. Carman, Large magnetostriction in Terfenol-D particulate compo-sites with preferred [112] orientation, in: C.S. Lynch (Eds.), Proc. SPIE Vol. 4333, Smart Structures and Materials 2001: Active Materials: Behavior and Mechanics, 2001, pp.178-183.

DOI: 10.1117/12.432754

[6] R. Mech, Examining the magnetomechanical properties of composites on the basis of powders of giant magnetostrictive materials (in Polish), Master Thesis, Wroclaw University of Technology, (2008).

[7] J. Kaleta, D. Lewandowski, R. Mech, P. Gąsior, Magnetomechanical properiteis of Terfenol-D powder composites, Solid State Phenomena, 154 (2009) 35-40.

DOI: 10.4028/www.scientific.net/ssp.154.35

[8] W. Blazejewski, P. Gasior, J. Kaleta, Application of Optical Fibre Sensors to Measuring the Mechanical Properties of Composite Materials and Structures in: B. Attaf (Eds.) Advances in Composite Materials - Ecodesign and Analysis, InTech, Rijeka, 2011 pp.221-246.

DOI: 10.5772/13954