Title :
Adaptive electromagnetic field analysis for axisymmetric structure and uniform waveguide using the finite element method
Author_Institution :
High Energy Accelerator Res. Organ., Ibaraki, Japan
Abstract :
An analysis of the electromagnetic field based on an adaptive finite element method is presented in this paper. The performance of the adaptive algorithms, based on an element-element h-refinement technique, is assessed. The features of the refinement indictors, adaptation criteria and error estimation parameters are discussed. The strategy of the adaptive mesh refinement method applied to the eigenvalue problem is studied to improve the accuracy of the eigenvector. Numerical results for a pill-box cavity and a disc-loaded structure are shown
Keywords :
accelerator RF systems; accelerator cavities; accelerator magnets; adaptive estimation; eigenvalues and eigenfunctions; error statistics; mesh generation; particle beam stability; FEM; adaptation criteria; adaptive algorithms; adaptive finite element analysis; adaptive mesh refinement method; axisymmetric structure; disc-loaded accelerating structure; eigenvalue problem; eigenvector accuracy; electromagnetic fields; element-element h-refinement technique; error estimation parameters; pill-box cavity; radiofrequency cavity; refinement indictors; uniform waveguide; Adaptive algorithm; Adaptive mesh refinement; Costs; Eigenvalues and eigenfunctions; Electromagnetic analysis; Electromagnetic fields; Electromagnetic waveguides; Error analysis; Finite element methods; Least squares approximation;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988000
