Femap with NX Nastran Structural Analysis Toolkit Fast and efficient post-processing of Nastran results combined with Nastran modal-based response dynamics simulation Benefits Summary • Significantly speeds up the Femap® with NX™ Nastran® Structural Analysis Toolkit software features an analysis and synthesis tasks advanced post-processing capability for general purpose Nastran analyses. It of Nastran results also includes efficient, state-of-the-art analytical tools for conducting Nastran • Efficiently processes Nastran modal-based response dynamics simulation. results for large models over many subcases Best-practice Nastran results processors • Efficiently processes static, transient, normal modes Stress and margin of safety The stress processor reads element stresses and and frequency response calculates margins of safety based on user-defined element groups, material analysis data allowable, safety factors and failure theories. The minimum margins of safety • Eliminates tedious pre- and for complex structures made of different materials subjected to various post processing of Nastran loadings can be assessed more efficiently than ever before. Margins are dynamics solution data exported to MS Excel worksheets and ranked by increasing value, by element • Increases the accuracy of label or both and results for sine and random can be sorted easily vibration simulations with the sort- • Saves valuable analysis time buttons created by by organizing data from the Structural numerous large datablocks Analysis Toolkit. into meaningful summaries Supported failure theories include von Features Mises stress, • Select nodes and/or honeycomb elements, subcases, sandwich panel formatting options and (intra-cell buckling, shear crimping and other results processing wrinkling) as well as all laminate failure parameters; leverage session theories found on the PCOMP data files to store processing entity directly. options and group definitions for future processing Element force The element force processor tabulates Nastran element forces • Interface directly with according to user-defined subcases and element groups. It allows for efficient Femap and extract node and evaluation of the maximum forces occurring in the entire FE model or in element group information selected regions. Group summaries identify the maximum force components for the active model along with the associated element, subcase and consistent forces. Since the forces are written directly to MS Excel files, ranking can easily be performed with the sort-buttons created by the Structural Analysis Toolkit. VELOCITY SERIES www.siemens.com/velocity FEMAP NX Nastran Femap with NX Nastran Structural Analysis Toolkit Features continued and associated allowable load vectors, Random vibration simulation The • Directly link to Microsoft so that joint margins of safety can be random processor reads the results of a Excel and eliminate cut and computed. Nodal and overall joint margins Nastran normal modes analysis and evalu- paste operations; also elimi- are calculated and provided. This permits ates the responses of a structure subjected nate time spent creating efficient assessment of bolted, welded, to a random base acceleration. It efficient- reports by leveraging and bonded joint integrity in large models, ly replaces all the steps following the initial Structural Analysis Toolkit to over many subcases. The grid point forces Nastran normal modes solution. Features format Nastran results with can be calculated for all dynamic and of the random processor include: Excel transient Nastran solutions. • Computation of stress margins of safety, • Efficiently read Nastran including the consideration of multiple binary results files generated Modal summary Understanding normal failure criteria (yield, ultimate) in a on all Windows and Unix modes of vibration can be easy for simple single run platforms structures, but for complex structures this • True von Mises stresses computed for • Sort and identify maximum knowledge is difficult to assimilate. The critical elements based on threshold element stresses, grid point following criteria can be used to assess the • Efficient integration methods for forces, element forces, importance of global and/or local modes of fast calculations energy density, and other a structure: • Automatic HTML graphical result Nastran results; calculate • Effective mass creation element and margins of • Response of the structure • No large mass requirement safety automatically from the to a base excitation • Ability to automatically calculate an chosen failure criteria and appropriate frequency resolution parameters The Nastran modal summary tool process- • Efficient residual flexibility method of es the modal information from a normal accounting for modal truncation Hardware platforms and modes analysis. Effective masses are tabu- • Tabular output provided as ASCII text file formats lated and graphed in MS Excel worksheets files or MS Excel spreadsheets • The Structural Analysis directly. Acceleration responses for select- • Graphical XY (results vs. frequency) Toolkit is available on ed groups of nodes are also tabulated. output available as either plots linked to Windows 2000 and XP Critical modes, in which effective masses an HTML page or a MS Excel spreadsheet platforms and/or dynamic responses exceed user- • The toolkit reads all NX defined thresholds, are automatically Sine vibration simulation The sine Nastran and MSC.Nastran flagged by the processor and highlighted processor is similar to the random .op2 software files created within the MS Excel worksheets. processor except that it sets up a harmonic on Windows and Unix base acceleration analysis. It features platforms for all versions Mass summary The mass processor phase-consistent calculation of maximum since NX Nastran Version 1 computes the mass properties of a Nastran von Mises stresses. MS Excel, HTML and and MSC.Nastran Version finite element model, allowing for efficient ASCII reports are generated automatically. 70.7 comparison with the detailed mass budget. The mass processor will scan the Nastran Direct data interfaces results file, identify all the physical proper- • Writes Microsoft Excel files Grid point force The grid point force ty tables and calculate the structural and • Writes HTML reports processor tabulates Nastran grid point non-structural mass of all the elements • Writes ASCII text files forces according to user-defined subcases associated to each table. Optionally, it will • Interfaces directly with as well as element and node groups. It calculate the mass properties of selected Femap Version 8 and later includes an option to define structural element groups as well. MS Excel graphs joints (for composite material joints, and pie charts will show the FE model’s laminate joints, weld calculations, etc.) mass distribution. © 2010 Siemens Product Lifecycle Management Software Contact Inc. All rights reserved. Siemens and the Siemens logo are registered trademarks of Siemens AG. D-Cubed, Femap, Siemens PLM Software Geolus, GO PLM, I-deas, Insight, Jack, JT, NX, Parasolid, Americas 800 807 2200 Solid Edge, Teamcenter, Tecnomatix and Velocity Series are Europe 44 (0) 1202 243455 trademarks or registered trademarks of Siemens Product Asia-Pacific 852 2230 3308 Lifecycle Management Software Inc. or its subsidiaries in the United States and in other countries. All other logos, trademarks, registered trademarks or service marks used www.siemens.com/velocity herein are the property of their respective holders. X4 11561 11/10 C.