Analysis-suitable CAD-to-CAE parameterization for isogeometric analysis
Date:
High-quality, analysis-suitable parameterization is a prerequisite for robust isogeometric analysis (IGA), especially in domains with thin air gaps, sliding interfaces, and pronounced anisotropy, as found in rotating machinery and electrical machines. This talk presents a suite of optimization- and PDE-based techniques for generating bijective, low-distortion parameterizations directly from CAD boundary descriptions. Key ingredients include barrier/penalty formulations for strict bijectivity, Jacobian-determinant regularization for distortion control, and adaptive strategies that respond to geometric and field-driven features. The methodology is demonstrated on challenging industrial geometries such as twin-screw compressors, which are representative of rotating machinery with narrow clearances.
Keywords: Isogeometric Analysis, Analysis-Suitable Parameterization, Bijective Parameterization, Electrical Machines, Twin-Screw Compressors