Contactless Linear Electromechanical Actuator: Experimental Verification of the Improved Design

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Published Jul 1, 2008
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Vol 8 No 2 (2008): Volume 8 / 2008

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Anton LEBEDEV
EPE Group, Department of Electrical Engineering, Eindhoven University of Technology, The Netherlands
Dipali THAKKAR
AM Group, Department of Mechanical, Maritime and Materials Engineering, Delft University of Technology, The Netherlands
Elena LOMONOVA
AM Group, Department of Mechanical, Maritime and Materials Engineering, Delft University of Technology, The Netherlands
Andre VANDENPUT
EPE Group, Department of Electrical Engineering, Eindhoven University of Technology, The Netherlands

Abstract

This paper describes ways to overcome the major applicability limitations of a novel linear
electromechanical actuator. Guidelines for selecting a proper soft magnetic material for a magnetic system of the
actuator are presented. Conventional laminated electric steel and a soft magnetic composite material are
compared based on the measured dynamic performance (up to 1000 Hz) and manufacturability. A serious
cross-coupling between two actuation directions of the actuator is identified and investigated. Improvements to
the design are described. Experimental verification of the improved design is carried out by the two scientific
groups. First measurement results show a significant (3 to 7 times) reduction of the cross-coupling.

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