Martin Rausch
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Publication
Featured researches published by Martin Rausch.
IEEE Transactions on Magnetics | 2005
Martin Rausch; Matthias Gebhardt; Manfred Kaltenbacher; H. Landes
This paper reports on an efficient finite-element scheme for computer-aided design of a clinical magnetic resonance imaging (MRI) scanner. The modeling scheme allows the full three-dimensional calculation of the electromagnetic, mechanical, and acoustic fields, including their mutual couplings. The validity of the computer simulations has been verified by appropriate measurements. Applications include the optimization of the gradient coil and the superconducting magnet with respect to eddy-current losses in the cryostat and the emitted noise.
Compel-the International Journal for Computation and Mathematics in Electrical and Electronic Engineering | 2003
Martin Rausch; M. Gebhardt; Manfred Kaltenbacher; H. Landes
In this paper, an efficient magnetomechanical calculation scheme based on the finite element method is presented. This scheme is used for the precise forecast of the dynamical behavior of a clinical magnetic resonance imaging scanner. The validity of the computer simulations has been verified by means of appropriate measurements. Application examples include the optimization of the superconducting magnet regarding the eddy currents and vibrations in its cryostat.
internaltional ultrasonics symposium | 2000
Reinhard Lerch; Manfred Kaltenbacher; H. Landes; M. Hofer; J. Hoffelner; Martin Rausch; M. Schinnerl
An advanced numerical calculation scheme based on finite and boundary elements as well as multigrid methods is presented. This scheme is used for the precise forecast of the dynamical behavior of magnetomechanical devices, especially sensors and actuators. Application examples include solenoid valves, electromagnetic sources for the generation of acoustic shock waves, magnetic surface acoustic wave (SAW) filters, electrodynamic loudspeakers and electromagnetic acoustic transducers (EMATs).
Compel-the International Journal for Computation and Mathematics in Electrical and Electronic Engineering | 1999
Manfred Kaltenbacher; Martin Rausch; H. Landes; Reinhard Lerch
A new method for the numerical computation of the dynamic behaviour of electro‐dynamic loudspeakers is presented. The numerical scheme, based on the finite element method (FEM), allows the simulation of coupled magnetic, mechanical and acoustic fields. The obtained simulation results are in good agreement with measured data.
Journal of the Acoustical Society of America | 1999
Martin Rausch; Reinhard Lerch; Manfred Kaltenbacher; H. Landes; Gerhard Krump; Leonhard Kreitmeier
A new technique for the computer modeling of fluid‐loaded magnetomechanical transducers is presented. This numerical technique is based on a finite‐element method (FEM) and allows the precise calculation of the magnetic, mechanical, and acoustic fields, including their couplings. Further on, nonlinear effects in the mechanical and magnetic behavior are considered. Therewith, the complex dynamic behavior of electrodynamic loudspeakers was studied and, furthermore, an appropriate computer‐aided engineering (CAE) environment has been established. This CAE tool allows an optimization of critical parameters, for example: The validity of the computer simulations is verified with the help of appropriate measurements. The calculated and measured values for eigenfrequencies, axial pressure responses, and electrical input impedances are in excellent agreement. The applicability of the presented calculation scheme with respect to the computer‐aided design of moving coil drivers is demonstrated by reporting several p...
Archive | 2008
Ludwig Kreischer; Juergen Nistler; Martin Rausch; Wolfgang Renz; Norbert Rietsch
International Journal of Applied Electromagnetics and Mechanics | 2003
Reinhard Lerch; Manfred Kaltenbacher; H. Landes; J. Hoffelner; Martin Rausch; M. Schinnerl
Journal of The Audio Engineering Society | 2001
Martin Rausch; Manfred Kaltenbacher; H. Landes; Reinhard Lerch; Gerhard Krump; Leonhard Kreitmeier
Archive | 2006
Jürgen Nistler; Martin Rausch; Wolfgang Renz
Archive | 2007
Ludwig Kreischer; Jürgen Nistler; Martin Rausch; Wolfgang Renz; Norbert Rietsch