Benefits Acceleration of the product development process • Reduce number of design cycles • Reduce number of prototypes and physical tests • Facilitate weight and material savings • Improve product durability • Shorten time-to-market High quality designs • Produce designs that are stiffer, have lower mass and reduced stress • Develop reliable and competitive products • Reduce costly recalls Seamless integration • Leverage your existing CAE knowledge and IT environment • Take advantage of highquality calculated results • Extend usage of previous CAE software investments
FEMAP www.siemens.com/plm/femap
Summary Femap™ Topology Optimization is a module for nonparametric structural topology optimization analysis that functions in combination with the NX™ Nastran® solver. Topology optimization determines an optimum design proposal starting with a given maximum design domain. All loads and boundary conditions from the NX Nastran finite element model are taken into consideration during the automatic optimization process. Complete optimization workflow Model setup is very simple using Femap, and existing NX Nastran input data can be used for the optimization process. Femap Topology Optimization supports the complete optimization workflow including smoothing for results transfer back to the CAD system. A complete optimization process can be adopted using Femap Topology Optimization, from the first design concept to the optimized geometry for return back to the CAD system.
FEMAP
Femap Topology Optimization General capabilities • Topology optimization with NX Nastran for linear statics and normal modes analyses • Pre- and postprocessing with Femap • Based on best-in-class optimization system TOSCA Structure, by FE DESIGN GmbH • 2D and 3D finite element meshes • Linear and parabolic elements • Areas easily defined by Femap groups • Contact definitions within the FE model • Consideration of multiple load cases • No model parameterization necessary • Stable and fast optimization algorithms • Efficient handling of very large models
Design smoothing • Automatic generation of smoothed isosurfaces of the material distribution following topology optimization • Specification of the target volume for the isosurface calculation • Export of isosurface as triangulated surface mesh • STL data reduction for CAD transfer
Optimization targets • Maximize stiffness with volume constraint • Maximize the lowest eigenfrequency with volume constraint • Minimize volume with displacement constraint Manufacturing constraints Demolding constraints for casting and forging components including consideration of stamping conditions and tightness • Definition of one area for demolding constraint • Parting plane definition: Midplane = none, auto, stamp, autotight • Check Group all elements or design elements Symmetry constraints • Definition of one symmetry constraint • Plane or cyclic rotational symmetry Maximum wall thickness constraint Minimum wall thickness constraint Arbitrary number of frozen areas
Contact Siemens Industry Software Americas 800 807 2200 Europe 44 (0) 1202 243455 Asia-Pacific 852 2230 3308 www.siemens.com/plm/femap
supports the complete optimization workflow including smoothing for results. transfer back to the CAD system. A complete optimization process can be. adopted ...
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Nov 16, 2016 - Weiyang Lin, James C. Newman III, W. Kyle Anderson. Design of Broadband Acoustic Cloak. Using Topology Optimization. IMECE2016-68135 ...
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