ANSA_Project 1_DASHBOARD

G DRIVE LINK: https://drive.google.com/drive/u/0/folders/1ZSQynm4SPgr_raqT7iuoOtjYrrmSpTgG

• PROCEDURE FOR MESHING
  • Once geometry cleanup is completed meshing is next.
• Some rules of thumb when meshing:
  • The mesh should look rather smooth and regular
  • Use the simplest element type suited for the problem.
  • Start with a coarse mesh and understand the modeling results; then use a finer mesh if needed.
  • Try to keep mesh related uncertainties to a minimum if possible. Keep it simple as it can get more complicated on its own.
• The mixed mode element type is the most common element type used due to the better mesh pattern that it produces (restriction: total tria % <5). Sometimes for structural analysis or for convergence and better results for a non linear analysis, the pure quadrilateral element meshing option is selected.

• • How Not to Mesh
    • Back to back triangles should be avoided. Two tria elements should not be connected to each other directly.
    • On plane surfaces triangular element should be avoided.
    • No mesh transition on constant radius fillets / curvatures
    • Circular holes should be modelled carefully with a washer (1.5 to 2 times diameter) and a minimum of two layers around the hole.
    • Holes should be modelled with an even number of equally spaced elements: For a better representation of the hole geometry and smooth mesh flow lines, holes should be modelled with an even number of elements (like 6, 8, 12,16 etc. rather than 5, 7, 9 or 13).
    • Nodes should lie properly on the surface, with no deviation (and no kinks).
    • Follow the feature lines (nodes should lie exactly on the edges).
    • Instead of a zig-zag distribution, a structured or smooth mesh is recommended
    • For crash analysis, follow the mesh flow line requirement
    • For crash analysis, rotating quads are not Recommended.
    • For crash analysis, constant mesh size (by using trias) is preferred (due to a minimum element length and a time step criteria).
  • PROCEDURE OF MID SURFACE EXTRACTION:
    
    • STEP:1 IMPORT THE MODEL AND VIUALIZE THE 2D TOPO
    • STEP:2 CLEAR THE ALL FREE EDGE BY USING THE CUT,RELEASE,DELETE IN HOT POINT AND CONS
    • STEP:3 CHECK NO FREE EDGE & 3 SURFACE ASSOCITATED SURFACE LINE
    • STEP:4 USE MID SURFACE APPRAPERIATE SELECTION METHOD
    • STEP :5 CHECK ANY SURFACE GILITICHES ARE FOUND AND CLEAR IT

• CHECKING THE MODEL IF UNIFORM THICKNESS OR NOT
  
• IF more complex part given means divided into small small parts in different PID
  
  • Totally given dash board is divided in to 25 small part and each having the different PID
• MID SURFACE EXTRACTION
  • The given part is variable thickness and complex part so,we don't apply the auto mid surface here(like skin,casting,etc..)
• MEASHING
  • For meshing more complx part dived in to smallpart as a different pid
  • IN same like this mesh the total mid surface
  • THEN THE MEASH THE SURFACE BY SURFACE
  • UNWANTED TRAIAS AND ROTATIONAL QUADS ARE REMOVED BY USING THE IMPROVE METHOD> USE THE RESHAPE OR RECONSTRACT
  • USE THE SMOOTH OPTION THE SMOOTH THE QUAD ELEMNTS
• SHELL AS SLOID
  • Give the proper thickness for the feature and mid surface
  • TO VIEW THE SHELL SOILD PRESS F11 >GO TO THE PRENSENTATION OF PARAMETR>CHECK THE DRAW SHELL SOILD

• RESULT AND LEARNING OUT COME
  • IN this assign-ment we learn the how to mesh the such complex part in automobile like dash board
  • how to mesh the part by part and how to get feature
  • how to use the mesh parameter and meshing feature in mehsh module etc..