AES E-Library

A. Voishvillo, and F. Kochendörfer, "Application of Static and Dynamic Magnetic Finite Elements Analysis to Design and Optimization of Transducers Moving Coil Motors," Paper 8989, (2013 October.). doi: A. Voishvillo, and F. Kochendörfer, "Application of Static and Dynamic Magnetic Finite Elements Analysis to Design and Optimization of Transducers Moving Coil Motors," Paper 8989, (2013 October.). doi:
Abstract: Transducer motors are potential source of nonlinear distortion. There are several nonlinear mechanisms that generate nonlinear distortion in motors. Typical loudspeaker nonlinear models include the dependence of the Bl-product and the voice coil inductance Lvc on the voice coil position and current. These effects cause nonlinearity in the driving force, electrodynamic damping, and generate nonlinear flux modulation and reluctance force. In reality, the voice coil inductance and resistive losses depend also on frequency. To take these effects into account the so-called LR-2 impedance model is used. The L2 and R2 elements are nonlinear functions of the voice coil position and current. In this work detailed analysis of a nonlinear model incorporating these elements is performed. The developed approach is illustrated by the FEA-based design and optimization of a new JBL ultra-linear transducer to be used in a new line array system.

@article{voishvillo2013application,
author={voishvillo, alexander and kochendörfer, felix},
journal={journal of the audio engineering society},
title={application of static and dynamic magnetic finite elements analysis to design and optimization of transducers moving coil motors},
year={2013},
volume={},
number={},
pages={},
doi={},
month={october},} @article{voishvillo2013application,
author={voishvillo, alexander and kochendörfer, felix},
journal={journal of the audio engineering society},
title={application of static and dynamic magnetic finite elements analysis to design and optimization of transducers moving coil motors},
year={2013},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={transducer motors are potential source of nonlinear distortion. there are several nonlinear mechanisms that generate nonlinear distortion in motors. typical loudspeaker nonlinear models include the dependence of the bl-product and the voice coil inductance lvc on the voice coil position and current. these effects cause nonlinearity in the driving force, electrodynamic damping, and generate nonlinear flux modulation and reluctance force. in reality, the voice coil inductance and resistive losses depend also on frequency. to take these effects into account the so-called lr-2 impedance model is used. the l2 and r2 elements are nonlinear functions of the voice coil position and current. in this work detailed analysis of a nonlinear model incorporating these elements is performed. the developed approach is illustrated by the fea-based design and optimization of a new jbl ultra-linear transducer to be used in a new line array system.},}

TY - paper
TI - Application of Static and Dynamic Magnetic Finite Elements Analysis to Design and Optimization of Transducers Moving Coil Motors
SP - EP -
AU - Voishvillo, Alexander
AU - Kochendörfer, Felix
PY - 2013
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2013 TY - paper
TI - Application of Static and Dynamic Magnetic Finite Elements Analysis to Design and Optimization of Transducers Moving Coil Motors
SP - EP -
AU - Voishvillo, Alexander
AU - Kochendörfer, Felix
PY - 2013
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2013
AB - Transducer motors are potential source of nonlinear distortion. There are several nonlinear mechanisms that generate nonlinear distortion in motors. Typical loudspeaker nonlinear models include the dependence of the Bl-product and the voice coil inductance Lvc on the voice coil position and current. These effects cause nonlinearity in the driving force, electrodynamic damping, and generate nonlinear flux modulation and reluctance force. In reality, the voice coil inductance and resistive losses depend also on frequency. To take these effects into account the so-called LR-2 impedance model is used. The L2 and R2 elements are nonlinear functions of the voice coil position and current. In this work detailed analysis of a nonlinear model incorporating these elements is performed. The developed approach is illustrated by the FEA-based design and optimization of a new JBL ultra-linear transducer to be used in a new line array system.