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Efficient sensitivity analysis of lumped elements with respect to finite‐element geometry changes
Author(s) -
Stysch Jonathan,
Klaedtke Andreas,
De Gersem Herbert,
Aichele Hermann
Publication year - 2022
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.3012
Subject(s) - finite element method , sensitivity (control systems) , choke , computation , computer science , filter (signal processing) , mathematics , algorithm , electronic engineering , engineering , structural engineering , electrical engineering , computer vision
Sensitivity analysis enables powerful gradient‐based mathematical programming techniques in the optimization of electromechanical products with respect to electromagnetic compatibility requirements. We present a sensitivity analysis method based on finite element solutions of both a magnetoquasistatic system in a tree‐cotree gauge and an electrostatic system. A repeated application of the adjoint method ensures a high computational efficiency, which is showcased in a comparison with an earlier approach. Application examples provided are the optimization of a noise filter and the sensitivity computation of a choke with dispersive magnetic core.