MESHING A SIDE DOOR OF A CAR USING HYPERMESH
OBJECTIVE:
- The main aim of this project is to mesh the side door of the car as per the quality criteria shown below.
- To assign thickness for the mesh elements.
QUALITY CRITERIA:
PROCEDURE:
- selected the radioss user profile for durability analysis.
- imported the model (.hm) file into the hypermesh.
- checked for any geometrical failure in the model as shown below,in order to attain good midsurface.
- cleared the necessary topological failures using the tool: goemetry-->quick edit (or) key fn+f11,as shown below.
- defeatured the unwanted surface fillets and edge fillets where the elements fail for minimum length after meshing.
- MIDSURFACE EXTRACTION:
- since, the component is the plastic component,the manual midsurface extraction method is used.
- the manual extraction method is done by using the tools:geometry-->distance(fn+f4) and geometry-->surface edit-->offset(shift+f9).
- checked for the geometrical failures like free edges, surface duplicates, irregular surfaces and cleared using quick edit panel.
- the surfaces are splitted and combined into one surface, in order to attain good mesh flow.
- MESHING:
- the midsurface is meshed surface by surface using the tool:2D-->automesh panel with the mixed type and element size of 4mm.
- the option tools-->check elements is used for the elements satisfaction to the given quality criteria.
- some unsatisfied elements are cleared by using the tool 2d-->quality index.
- some of them are cleared by the reverse masking technique and remeshing them.
- the options like project, element edit, node edit,replace also used for better feature capturing.
- checked for the presence of back to back trias, opposite trias, rotational quads, edge trias and cleared by remeshing the elements.
- checked for the presence of free edges between the elements and cleared by increasing the tolerance value and replace option.
- the concentration of trias is greatly reduced using the option quality index-->cleanup tools-->drag tria element.
- finally,smoothing is done for the better mesh flow.
- ASSIGNING THICKNESS:
- the component is measured for the varying thickness by using the option distance(f4).
- the collectors are created as per the thickness values and organized the components elements using the tool: tools-->organize(shift+f11).
- the properties are created with P1-shell as card image and respective thickness values.
- finally,assigned the each property to the respective collectors.
- the tool-2D detailed element representation is used to view the assigned thickness.
- finally, saved the file.
RESULT:
hence, the side door of the car is meshed as per the quality criteria and thickness is assigned to the 2D elements.
LINK TO VIEW THE MODEL: