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Morphing with

Morphing with. Morphing with ANSA General. Reshape any type of FE mesh without the need to return to the CAD model for modifications Introduce parametric shape modifications for optimization purpose Morphing modifications on both FE and Geometry models Two main methods: Using Morphing Boxes

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Morphing with

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  1. Morphing with Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  2. Morphing with ANSA General • Reshape any type of FE mesh without the need to return to the CAD model for modifications • Introduce parametric shape modifications for optimization purpose • Morphing modifications on both FE and Geometry models • Two main methods: • Using Morphing Boxes • Direct Morphing Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  3. Direct Morphing – without Morphing Boxes • For local modifications of single components or assemblies • Applicable on FE-mesh and geometry models • Different type of movements: Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  4. Direct Morphing – without Morphing Boxes • Snapping to single or multiple target curves • Morphing of FE-mesh or geometry • Origin • Target • Boundary • Morphing • Reconstruct Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  5. Direct Morphing – without Morphing Boxes • Snapping to single or multiple target curves • Morphing of FE-mesh or geometry • Origin, Target, Boundary • Morphing Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  6. Direct Morphing – without Morphing Boxes Fitting surfaces – e.g. fit existing FE-mesh to new CAD-geometry • Original FE-surface • Target CAD-surface • Morphing Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  7. Direct Morphing – without Morphing Boxes Fitting Cross-Sections (applicable on FE-mesh and geometry) • Original Cross-Section • Target Cross-Section • Morphing Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  8. Direct Morphing Local Depressions • On arbitrary shell mesh • Different types of cross sections Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  9. Direct Morphing Local Depressions Selected Curves Depression Reconstruct Automatically created morphing boxes and morphing parameters Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  10. Box Morphing Entities (elements, connections, geometry) loaded to boxes → Moving of control points reshapes the entities Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  11. Box Morphing Types of Boxes Hexahedral, Cylindrical and 2D Boxes Topological connection of different types Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  12. Box Morphing Approach 1 • Multiple boxes which follow the shape of the structure • Moving / sliding of control points reshapes the model • Rough modification of model shape Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  13. Box Morphing Approach 2 • Single box, split into many whose edges fit on feature lines • Surrounding boxes as buffer zones • Precise modification of model shape Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  14. Box Morphing Approach 3 • Box in Box • Separate groups of boxes handle different features • Local and global modifications localmodification global modification Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  15. Box Morphing Creation of Boxes • Along coordinate system / Min. Volume • Multiple Boxes (Hexa-block, O-ring) • Sweep / Glide • Adapt • Cylindrical • Points • Curves • Offset • Link • ... Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  16. Box Morphing Modification of Boxes • Split / Join • Concentric split • Move • Slide / Extend • Fit (edges, surfaces) • Radius • Angle • Tangency • ... Translate Rotate Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  17. Box Morphing Linked Morphing Boxes • Taking advantage of model symmetry • Link according symmetry-/mirror plane, rotation axis or translation vector Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  18. Morph History States • Keep history of morphing actions • Can be stored automatically after morphing actions or manually at any time • Continuous morphing between history states Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  19. Additional Constraints – Nested Elements • Applicable for Direct and Box Morphing • Act as un-deformable shapes (rigid bodies) during Morphing • Dependent rigid movements WithNested Elements WithoutNested Elements Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  20. Morphing Parameter • Couples morphing tool with optimization software • Applicable for almost all interactive morphing modifications • Extend • Angle • Offset • Transform • Radius • Edge Fit • Direct • Deformation • User Tangent • DFM • … Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  21. Morphing Parameter Deformation Parameter • Records any morphing action (Direct or Box Morphing) • Retrieve undeformed shape as well as interpolations or extrapolations between undeformed and deformed shape Initial shape – startrecording Edge Fit Deformation Parameter Move Free Deformedshape – stoprecording Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  22. Morphing with Vectors • Morph according previous morphing actions: • Deformation Parameter • History States • DESVAR of Nastran SOL 200 • Text file • E.g. morph geometry according optimized FE-model or morph similar models in same manner Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  23. Functionalities assisting Morphing 3D Points and Curves • Act as initial or target positions • Suitable for Direct and Box Morphing • Obtained from FE mesh or CAD geometry Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  24. Functionalities assisting Morphing Part Manager • Useful for Box Morphing (esp. complex configurations) • To organize morph contents Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  25. Functionalities assisting Morphing Reconstruct / Smooth morphed mesh • Suitable for Direct and Box Morphing • Improve mesh after morphing with large deformations Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  26. Functionalities assisting Morphing Visualize Morphing Deviations • Suitable for Direct and Box Morphing • Measurement Tool • Fringe Plot of deformed shape Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

  27. Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012

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