A method for generating rational interpolant reduced order models of two-parameter linear systems

✍ Scribed by D.S. Weile; E. Michielssen; E. Grimme; K. Gallivan

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 513 KB
• Volume: 12
• Category: Article
• ISSN: 0893-9659
• DOI: 10.1016/s0893-9659(99)00063-4

✦ Synopsis

A model order reduction technique for systems depending on two parameters is developed. Given a large system model, the method generates the descriptor matrices of a system model of lower order that is a rational interpolant of the transfer function of the large system--the transfer functions have identical values and derivatives for a finite set of parameter values. The new technique is a generalization of recently developed algorithms for one-parameter systems that are based on projections onto Krylov subspaces defined by the descriptor matrices. (~) 1999 Elsevier Science Ltd. All rights reserved.