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NX Advanced FEM Integrating Geometry and FE Modeling to Streamline the Product Development Process Siemens PLM Software NX Advanced FEM Integrating geometry and FE modeling to streamline the product development process Benefits Summary Providing finite element modeling for • Speed simulation processes NX™ Advanced FEM software is a modern, experienced CAE analysts by up to 70 percent multidiscipline computer-aided engineering Using NX Advanced FEM drastically reduces (CAE) environment for advanced analysts, the time you spend preparing simulation • Increase product quality by workgroups and designers that need to models. NX delivers all the advanced mesh- rapidly simulating design deliver high-quality performance insights in ing, boundary conditions and solver tradeoff studies a timely fashion to drive product decisions. interfaces that experienced analysts expect • Lower overall product NX Advanced FEM includes a full suite of and need to perform high-end analysis. development costs by direct geometry modeling and editing However, what makes NX Advanced FEM reducing costly, late design tools, and forms the analysis modeling unique from all other finite element (FE) change orders foundation on which you can pre- and post- preprocessors is its superior geometry foun- process analysis models for structural, dation that enables intuitive geometry • Efficiently manage large, thermal, flow, engineering optimization editing and analysis model associativity to complex analysis models and multiphysics analyses. NX Advanced multi-computer-aided design (CAD) data. • Capture and automate best FEM speeds CAE processes with a bi-direc- The tight integration of a powerful geome- practices and commonly tional analysis model to design geometry try engine with robust analysis modeling used processes association that enables users to rapidly commands is the key to reducing modeling update an analysis model when the base time by up to 70 percent compared to tradi- • Pre- and postprocess design changes. Multi-CAE environments tional FE modeling tools. analysis models for the enable analysts to build and export analysis most popular finite element Enabling fast, intuitive geometry editing models for industry standard solvers such solvers NX Advanced FEM is built on the same as Abaqus, ANSYS, LS-DYNA, MSC Nastran leading geometry foundation that powers as well as NX Nastran® software and the NX. By using NX Advanced FEM, you can LMS Samcef Solver Suite. Analysts can also rapidly clean up and prepare geometry import results from these external solvers from any CAD source through direct for postprocessing. www.siemens.com/nx NX NX Advanced FEM modeling. Geometry edits and the com- Rapid design-analysis iterations through plete analysis model remain associated to associativity: user-defined geometry edits, the base design, which means you can eas- FE mesh and boundary conditions are all ily update your analysis model each time associated to the base design. When the the design changes. As a result, the NX CAE design topology changes, NX rapidly geometry editor accelerates your design- updates the existing analysis geometry, analysis iterations and improves your mesh, loads and boundary conditions as overall productivity. required, avoiding the need for the analyst to manually recreate the analysis model. Direct geometry editing with synchro- This approach greatly reduces downstream nous technology: NX Advanced FEM modeling time, which is compounded includes direct geometry editing capabili- across a project’s many design-analysis ties powered by synchronous technology, iterations. combining the flexibility of direct modeling with the best of dimension- and constraint- Multi-CAD support: NX Advanced FEM driven techniques to provide you with the supports CAD geometry in a number of for- most control. Analysts can quickly edit mats, and all NX Advanced FEM direct Shown is an initial analysis model. geometry in intuitive ways that are not pos- editing and idealization capabilities can be sible in traditional CAE preprocessors or used on geometry from all of these feature-based CAD systems. Direct editing formats: will work on geometry from any source, • Direct geometry translators (CATIA V4, and analysts can use it to rapidly defeature CATIA V5 and Pro/Engineer) or modify geometry prior to meshing, create design alternatives for what-if • Neutral geometry transfer (IGES, STEP, evaluations, or rapidly generate fluid JT™ data format and Parasolid® software) domain volume geometry. In addition to synchronous technology, NX Use synchronous technology and select geometry to move Advanced FEM delivers a wide range of interactively. geometry editing capabilities that are needed to de-feature, abstract and idealize geometry for CAE purposes, such as: • Geometry healing and repair for gaps and other data inaccuracies • Mid-surfacing to create surfaces for thin- walled components • Defeaturing tools (geometry repair, Simply drag geometry to a new feature suppression, stitch surface, position. remove hole/fillet and partitioning) • Non-manifold topology generation for volumes • Ability to create a surface from an orphan mesh In a matter of seconds you can have associated • Split body and partitioning methods for mesh updates that are ready for immediate analysis. dividing solid geometry into more manageable sections prior to hex meshing New design ready to be analyzed. NX Delivering comprehensive meshing • Pyramid elements needed to smoothly NX Advanced FEM includes extensive model- transition from a hex mesh to a ing functions for automatic and manual tetrahedral mesh mesh generation of 0D, 1D, 2D and 3D ele- Mesh control and editing: in addition to ments, and also numerous techniques for creating meshes, NX Advanced FEM helps the application of loads and boundary condi- you fine tune and edit meshes to achieve tions. The NX Advanced FEM integrated quality criteria and more accurate results. environment is unique because it associates Capabilities include: the analysis model to its geometry. User- defined geometry edits, mesh and boundary • Mesh morphing to modify existing meshes conditions are all associated to the base to match new geometry dimensions design. When the design geometry changes, • 2D and 3D mesh controls for fillets and NX Advanced FEM maintains the existing cylinders analysis geometry, mesh, loads and bound- ary conditions, and rapidly updates them as • Extensive mesh quality checks and required, thereby avoiding the need for you reporting to recreate the analysis model. This approach • Local element control for precise mesh greatly reduces downstream modeling time, which results in huge time savings across a generation project’s many design-analysis iterations. • Batch meshing with mesh controls for 0D and 1D meshing: you can create 1D use in automated processes elements, such as welds, bolts, rigids and Flexibly apply loads and beams, and other elements with ease. NX boundary conditions Advanced FEM also leverages CAD informa- The geometry engine at the core of NX tion to help you quickly create beam Advanced FEM provides you with the flexi- section properties and facilitate the cre- bility to apply loads and boundary ation of FE weld connections based on data conditions either to geometry features or contained in the CAD assembly. directly to the FE mesh, depending on your 2D shell meshing: NX Advanced FEM pro- needs. Load and boundary conditions can vides a number of tools to help you create be applied in the following manner: accurate FE meshes needed for thin-walled • On geometry (face, edge or curve) to components. These tools can be used in maintain associativity when design Extensive meshing tools are conjunction with mid-surface, and the geometry changes available for thin-walled parts. types of 2D meshing methods include: • On FE entities (nodes, elements, element • Mapped meshing to control the faces and element edges), which is distribution of elements across a surface useful when working with imported • Free (unstructured) meshing for surfaces meshes with no underlying geometry with more than four sides • To local coordinate system • Dependent meshes to ensure meshes • To groups for easier management match in contact or symmetric regions • As axisymmetric boundary conditions for 3D solid meshing: thick, chunky compo- simplifying the study of revolved systems nents are often modeled using tetrahedral or hexahedral elements. NX Advanced FEM • As loads automatically obtained from offers the necessary tools to quickly create motion analysis in NX Motion solid elements, including: • As time-varying condition sequences for • Automatic best-in-class tetrahedral simulating mission profiles Quickly mesh complex geometry meshing with automatic best-in-class • As defined by expression, array or table tetrahedral meshing. • Swept hexahedral meshing input NX Facilitating efficient FE Preprocess assembly management with multi-CAE NX Advanced FEM is unique in the way it environments creates FE assembly models. Unlike tradi- NX Advanced tional CAE preprocessors that were FEM can be developed for component analysis and used as the pri- require you to build monolithic analysis mary pre- and models, the NX Advanced FEM assembly FE postprocessor model (AFEM) management tool creates for Siemens large FE assembly models by instancing and PLM Solvers, NX Easily build, connect and manage connecting FE component models together, Nastran and large FE assembly models. similar to a CAD assembly. When an FE LMS Samcef, or component is updated later in develop- for a number of ment, NX Advanced FEM updates all third party solv- instances of that component
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