Optimization design of a voice coil actuator based on improved SOM

Abstract

Voice coil actuator is a new kind of direct drive motor. It has many good performances, such as high acceleration and fast response. We present an improved sequential optimization method (SOM) and dimension reduction optimization method to design optimization a cylindrical voice coil actuator in this work. In the implementation, design of experiments (DOE) technique and Kriging approximate model are employed to improve the optimization efficiency. From the discussion, we can see that the proposed methods are very efficient. And computation cost of finite element analysis can be reduced remarkably (more than 2/3 of the cost has been saved) by the proposed methods.Keywords-design of experimants, finite element analysis, Kriging model, sequential optimization method, voice coil actuator.

An Observer-Based Active Vibration Isolation System Using the Voice-Coil Actuator

“…The force is generated in the vertical direction perpendicular to the current flow and the magnetic flux when the current flows in the coil. The generated force is proportional to current, magnetic flux density, and coil length in the magnetic field [5] . The design of the magnetic circuit is verified by using the finite element analysis software.…”