https://sam.ensam.eu:443 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. Sun, 14 Jun 2026 10:45:50 GMT 2026-06-14T10:45:50Z http://hdl.handle.net/10985/22541 Error Estimator for Cauer Ladder Network Representation HIRUMA, Shingo; IGARASHI, Hajime; HENNERON, Thomas; CLENET, Stephane The Cauer Ladder Network (CLN) method enables to construct a reduced based circuit model of analytical or numerical models, e.g. Finite Element (FE) model, under quasistatic approximation. This paper proposes an estimator which provides guaranteed upper bounds of the truncation error due to the CLN method. The error estimator is tested on an analytical model and a Finite Element model to validate the approach. Thu, 01 Sep 2022 00:00:00 GMT http://hdl.handle.net/10985/22541 2022-09-01T00:00:00Z HIRUMA, Shingo IGARASHI, Hajime HENNERON, Thomas CLENET, Stephane The Cauer Ladder Network (CLN) method enables to construct a reduced based circuit model of analytical or numerical models, e.g. Finite Element (FE) model, under quasistatic approximation. This paper proposes an estimator which provides guaranteed upper bounds of the truncation error due to the CLN method. The error estimator is tested on an analytical model and a Finite Element model to validate the approach. http://hdl.handle.net/10985/26703 Error Estimation of the Cauer Ladder Network Method for the Time-Domain Analysis and Its Application to a Multiport System TOBITA, Miwa; CLÉNET, Stéphane; HIRUMA, Shingo; CHEN, Wei; MATSUO, Tetsuji The Cauer ladder network (CLN) method can accelerate eddy current field analysis of electromagnetic devices in the time domain by reducing the order of the finite element (FE) model. To control its accuracy, the reduction error should be estimated without conducting the FE analysis. In this study, we extend the estimation method in the frequency domain developed in a previous study to time-domain analysis. The proposed method is also extended to a multiport system. Numerical examples illustrate that the proposed error estimation method is effective. Sun, 01 Dec 2024 00:00:00 GMT http://hdl.handle.net/10985/26703 2024-12-01T00:00:00Z TOBITA, Miwa CLÉNET, Stéphane HIRUMA, Shingo CHEN, Wei MATSUO, Tetsuji The Cauer ladder network (CLN) method can accelerate eddy current field analysis of electromagnetic devices in the time domain by reducing the order of the finite element (FE) model. To control its accuracy, the reduction error should be estimated without conducting the FE analysis. In this study, we extend the estimation method in the frequency domain developed in a previous study to time-domain analysis. The proposed method is also extended to a multiport system. Numerical examples illustrate that the proposed error estimation method is effective.