非線形電磁場解析とその鉄鋼材料の劣化評価への応用
英字タイトル:
Nonlinear Electromagnetic Field Analysis and Its Application to Nondestructive Evaluation in Material Degradation of Steel Samples
著者:
小島 史男 Fumio KOJIMA 西山 亮 Ryo NISHIYAMA
発刊日:
公開日:
magnetic permeabilityMaterial degradationparameter estimation
Nonlinear Electromagnetic Field Analysis and Its Application to Nondestructive Evaluation in Material Degradation of Steel Samples
著者:
小島 史男 Fumio KOJIMA 西山 亮 Ryo NISHIYAMA
発刊日:
公開日:
カテゴリ: 第2回
キーワードタグ:magnetic permeabilityMaterial degradationparameter estimation
概要
This paper is concerned with a computational method for evaluating a degradation level of magnetic materials. Applying current to a probe with magnetic yoke, the detecting signal can be measured by pick-up coil attached with the probe. An inspection model is described by a nonlinear Euler equation in two dimensions with the state dependent magnetic permeability. The nonlinear output l east square problem is formulated for identifying the material degradation parameter. Some numerical experiments are summarized.
