mor4ansys: Generating Compact Models Directly From ANSYS Models

E.B. Rudnyi, J. Lienemann, A. Greiner and J.G. Korvink
IMTEK, Albert Ludwig University, DE

Keywords: model order reduction, damped second ordersystem, Rayleigh damping, Arnoldi process, Krylov subspace

Abstract:
Model reduction of linear large-scale dynamic systems is already quite an established area [1]-[3]. In a number of papers (see references in [3]), the advantages of model reduction have been demonstrated. In the present paper, we describe a software tool to perform moment-matching model reduction via the Arnoldi algorithm directly to ANSYS finite element models. We discuss the application of the tool to a structural mechanical problem with a second order linear differential equation (ODE). Its successful application to the first order case of electro-thermal modeling is demonstrated elsewhere [4], [5].

Nanotech 2004 Conference Technical Program Abstract