For Linux and Windows, v8.4 includes technical enhancements designed to benefit engineers in design, analysis, and simulation phases of product development. Major Solver features include: support for huge models of over 7 million degrees of freedom in Windows XP, enhanced nonlinear and dynamic solutions with 2-10x faster performance, more accurate and robust quad shell element, automated cyclic symmetric boundary conditions, faster Lanczos Eigensolver, Craig-Bampton reduction for substructuring and superelement generation, Modal Assurance Criteria (MAC), Modal Cross Orthogonality (MXO) plots, and new productivity tools for aerospace, maritime, and automotive customers.

NEi's industry unique Editor has been enhanced with full post-processing capability. Improvements include new graphics kernel, enhanced post-processing utilities, and global settings, which further leverage NEiNastran functionality. As an example, automatic xy plotting of modal effective mass, 3D xyz modal animation, and graphs of analysis correlation matrices can all be displayed in visual Windows format that aids complex analysis and problem solving.

Upgrades to NEiNastran Modeler v8.4 (FEMAP v9) provide state-of-the-art CAE capabilities to customers of major CAD systems including CATIA, Pro/Engineer, AutoDesk, SolidWorks, and Solid Edge. New navigation techniques, access commands, and functionality streamline geometry preparation, finite element modeling, analysis, and post-processing routines.