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FEMAP

1/ Overview

Femap is an advanced engineering simulation software program that creates finite element analysis models of complex engineering products and systems, and displays solution results. Femap can virtually model components, assemblies or systems and determine the behavioral response for a given operating environment.

Using Femap’s digital simulation capabilities you can:

  • Predict and improve product performance and reliability
  • Reduce time-consuming and costly physical prototyping and testing
  • Evaluate different designs and materials
  • Optimize your designs and reduce material usage

  • CAD-Independent

Femap is CAD-independent and can access geometry data from all major CAD systems including CATIA, Pro/Engineer, NX, Solid Edge, SolidWorks and AutoCAD. Once imported you can prepare the model for analysis using the geometry locator to identify and display potentially troublesome entities, such as slivers, and either remove them completely with the geometry cleanup tools or suppress them. Femap also offers a wealth of geometry creation and modification functions so you can make necessary model changes in preparation for finite element model creation.

  • Finite Element Modeling

The full finite element model with underlying data is fully exposed by Femap, allowing you to view, create or modify entities directly. Femap’s grouping, layering and visualization tools help you to manage model display while creating and setting up the finite element model.

Femap includes specialized capabilities to help with modeling tasks including:

  • Mid-plane extraction of thin-walled structures to aid creation of more efficient and accurate shell models
  • Weldment modeling that connects discrete solid welded parts together into a contiguous model
  • Data surfaces that allow you to create complex loading conditions based on prior analysis output for multi-physics applications
  • Finite Element Meshing

Femap’s 3D solid and surface meshers are tuned to generate high-quality meshes, providing well-shaped elements to ensure accurate results. Femap gives you full control over all mesh generation parameters including mesh sizing, meshing of small features, growth factors, short edge suppression, etc. With complex geometry, modification of the mesh is often required in areas where greater accuracy is desired. For this situation Femap’s Meshing Toolbox allows you to interactively modify mesh sizing parameters on the underlying geometry, and see the mesh update automatically. You can also view element quality feedback live while modifying the mesh, to ensure that a high-quality finite element model is created.

  • Assembly Modeling

Femap with NX Nastran supports assembly modeling, including automatic contact detection that determines the components initially in contact. The contact regions can be set to be simply in contact (with or without friction) or glued together. The contact calculations performed by NX Nastran are iterative and update during the solution, to take into account deformation changes representing the true contact condition in the final results.

Other types of component assembly modeling techniques also supported include spot-weld, fastener elements, and bolted joints with optional pre-loading.

  • Beam Modeling

Besides solid and shell element models Femap also supports beam modeling and meshing. This technique allows models comprising long, slender components (for which a solid meshing approach would create a large, unwieldy model) to be represented by one-dimensional elements with associated properties.

Model visualization is key to beam modeling, and with Femap you can view these elements as solid components and include offsets. Femap features a section property editor which includes a library of standard cross-section shapes. You can also define your own sections, and the built-in section property calculator automatically determines the required properties.

Also available are full beam visualization and results display options including shear and bending moment diagrams.

  • Composite Modeling

The use of composite materials in designs has increased significantly in recent years, and Femap can help you model and postprocess results on composite structures. With Femap’s a laminate editor and viewer, you can update the laminate properties interactively as you create and modify plies in the laminate.

You can also postprocess composite laminate results using Femap’s global composite ply feature, which allows you to view results on continuous plies through the structural model.

  • Solver Neutral

Femap is solver-neutral and provides in-depth pre- and postprocessing support for all of the main commercial solvers on the market, including NX Nastran, Ansys, LS-DYNA, Abaqus and TMG. You can take full advantage of the advanced analysis capabilities of these solvers using Femap’s comprehensive modeling and analysis support, particularly for dynamic, geometric and material nonlinear, heat transfer and fluid flow analyses.

  • Postprocessing

A wealth of visualization capabilities help you view and interpret the results to quickly understand the model behavior. You’ll find everything you need to view and interpret the output data, including:

  • Contour and criteria plots
  • Deformed shape animations
  • Dynamic cutting plane and iso-surfaces
  • Full output selection
  • XY plots
  • Free body diagrams and grid point force balance output
  • Time and frequency domain animations

Complete access to results data is provided through the Data Table pane, which you can use to gather, sort and control the amount and type of data that is visible, to compile an analysis report.

  • Scalable Simulation Solutions

The Velocity Series CAE products offer scalable solutions for design engineers in the form of the CAD-embedded Solid Edge Simulation program, and Femap with NX Nastran for CAE analysts.

The Femap with NX Nastran product line itself offers solution scalability, from the more general simulation capabilities available in the base module to more advanced applications including dynamics, optimization, advanced nonlinear, rotor dynamics, heat transfer and fluid flow in add-on modules.

  • Customization

Femap’s open customization capability allows complete access to all Femap functions through an OLE/COM object-oriented Application Programming Interface (API), which employs standard, non-proprietary programming languages. Access to the API is through a development environment within the user interface where you can create custom programs that automate workflows and processes, and which can interact and exchange data with third-party programs such as Microsoft® Word and Excel.

  • Usability

Femap is an intuitive Windows®-native application. Femap’s support of multiple graphics windows and specialized panes, such as the Model Info Tree and Data Table, allow complete access to the finite element model and results data and help promote efficient work flows. You can modify the appearance of the interface to suit your requirements, including repositioning panes, modifying the level of functionality exposed, and complete toolbar and icon customization.

2/ Packages

  • Femap Base

Femap Finite Element Modeling and Post-Processing. Femap is a general purpose, CAD-independent, solver neutral, pre- and post-processor for engineering finite element analysis (FEA). Femap can import CAD data from I-deas, NX, Solid Edge, SolidWorks, Catia v4, Pro/E, ACIS, Parasolid, IGES, STEP etc. An optional Catia v5 CAD Data Translator (E076) can be added to this license.  Femap is available with either floating or node locked licensing.

Finite Element models for structural, thermal, and dynamic analysis of engineered parts or assemblies can be constructed using CAD geometry as the baseline, or constructed bottom up in a traditional finite element modeling process.

Femap supports twenty FEA solvers, most notably NX Nastran, MSC Nastran, ANSYS, ABAQUS and LS-DYNA. An extensive array of element types, material models, idealization, including mid-surfacing and solid geometry cleanup and simplification make it possible to create efficient and accurate models of any engineered structure. Femap includes integrated geometry editing and creation for wireframe, surface, and solid geometry using the Parasolid geometry kernel.

Femap E004 serves as the prerequisite for numerous Femap options, including several levels of NX Nastran functionality, basic and advanced thermal analysis, fluid flow analysis, and a specialized structural analysis toolkit with extensive NASTRAN post-processing functionality.

  • FEMAP Thermal Solver

The Femap Thermal Solver adds state-of-the-art thermal analysis solutions to the Femap environment and provides fast and accurate solutions to complex thermal engineering problems. Using finite-element mesh, finite-volume based numerical techniques, the Femap Thermal Solver makes it easy to model nonlinear and transient heat transfer processes including conduction, radiation as well as phase change.

Leading-edge solver technology provides solid reliability and superior solution speed for even the most challenging problems. With Femap, accurate thermal analysis can be performed quickly and effectively, delivering the engineering insight and turnaround speed needed to ensure success within today’s rapid development cycles.

  • FEMAP Advanced Thermal Solver

The Femap Advanced Thermal Solver adds a number of more advanced thermal modeling and simulation capabilities to the Femap Thermal Solver package including 1D fluid network modeling and free and forced convection.

An extensive suite of thermal modeling tools are provided to allow users to define more advanced and sophisticated thermal simulations, such as radiation and spacecraft modeling, including solar and orbital heating, orbit modeling and display, ray tracing capabilities, and articulating structures. These extensive modeling tools are also complemented by a number of more advanced solver features such as custom user subroutines, model simplification, sub-structuring and interfaces to industry thermal codes.

  • Femap with NX Nastran Options

  • Dynamic Response
  • Aeroelasticity
  • Design Optimization
  • Super Elements
  • DMAP
  • Advanced Nonlinear Solver
  • Rotor Dynamics
  • Topology Optimization

3/ Case Study

Adams Golf: Adams Golf® designs, assembles, markets and distributes premium quality, technologically innovative golf clubs. All of the equipment at Adams Golf is designed and tested using a variety of sophisticated, state-of-the-art tools, such as 3D CAD and rendering, CAE, advanced mass property analysis and equipment durability testing. And it’s this high-quality craftsmanship, cutting-edge engineering and superior customer service that have made Adams Golf a true leader and innovator in the golf business.

Dynamic Concepts Inc: Founded in 1995,Dynamic Concepts Inc. (DCI) has forged a reputation for simulation expertise in the aerospace and defense communities. DCI’s structural engineering group provides contract support for programs at the National Aeronautics and Space Administration (NASA), for the U.S. Army’s Aviation Engineering Directorate, and for other companies involved in missile defense projects.

Ben Ainslie Racing :“The ability within the NX system to use scripts and produce hundreds of CFD geometries at the press of a button is immensely powerful.”

Lockheed Martin Space Systems: “ Using Femap, you can view your model in a lot of different ways, and turn different elements and geometry on and off. This helps us doublecheck and catch mistakes.”

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