Challenge

2D meshing on the instrumental Panel

2D meshing on the instrumental Panel

AIM: To perform 2d meshing on the instrumental panel by checking the geometrical errors and mesh with the given element Quality criteria.

PROCEDURE:

STEP 1: Importing the model to the ANSA software.

To import the model to ANSA we have to have ".ansa or .igs".
First, open ANSA software and go toFILE and open the file and upload the file to ANSA.

"IMAGE 1: Import the geometry to ANSA"

STEP 2: Performing the geometry cleanup on the model (INSTRUMENTAL PANEL)

After the model is opened in the ANSA, we have to change the orientation of the model to grey
After the orientation is done we have to perform the geometry clean up on the model
After the orientation is done we have to perform Geometry cleanup on the model by using the TOPO option which is in the FACES command in TOPO modulus.

"IMAGE 2 : Topo clean up in the model "

"IMAGE 3 : Geometry clean up on the model "

After the geometry clean-up is done we have to set different PIDs for the models. LIST<PROPERTIES

"IMAGE 4:Setting PID for the model "

STEP 3: Obtaining mid surface of the model.

After the geometry check-up is done on the model. We have to obtain the mid surface of the model.
We have different methods to get the mid surface like OFFSET option, MIDDLE option, SKIN option, CASTING option in the FACES command in TOPO modulus.

"IMAGE 5: Mid surface of the model "

Dog houses in this model should be captured as a "Cross pattern" in Mid surface since dog houses are solid (Hollow from inside) and are not having any thickness.

"IMAGE 6: Cross pattern on the dog house in the model "

Make sure to measure the thickness of the model before using the offset option because the offset distance should be half the original length. so make sure to measure a few areas which are required and store them.
By using all the options get mid for the model.

STEP 4: Setting the Quality criteria and mesh parameters.

After the mid surface is generated, we have to set the mesh parameters and the quality criteria.
To set the quality and mesh parameters we have to go to UTILITIES modulus.
In the mesh parameters, we have to set the minimum, maximum, average length, and type of mesh.
In the Quality criteria, we have to set the quality according to the requirements of the customer.
UTILITIES < QUALITY CRITERIA for setting the quality criteria.

"IMAGE 7: Quality Criteria"

"IMAGE 8:Mesh parameters "

STEP 5: Performing the topological clean-up on the mid surface.

After the mid surface is generated we have to do some topological clean-up on the model as we will have unwanted double and triple cons on in the model.
By using the CUT option with a left mouse click, we can remove the double cons. FACES<CUT.
We have to delete some surfaces and create new surfaces on the mid surface.
By using the NEW option in FACES we can create new faces. FACES<NEW<(FILLTER,COONS).
After the topological clean-up is done on the model we have to start modeling the mid surface.

"IMAGE 9:Topological clean up on the mid surface of the model "

STEP 6: Meshing the mid surface.

After the topological clean-up is done on the mid surface. We have to mesh the mid surface of the model.
First, we have to set the LENGTH in the PARAMETERS of the model with Average length. MESH MODULES< PARAMETERS<LENGTH<PERAMETERS/MACROS.
The Trias in the mesh model has to remove or improve by using SPLIT, SWAP option in ELEMENTS Option In MESH MODULE.
Finally, the mesh needs to have ZERO OFF elements, ZERO UNMESHED SURFACES with minimum TRIA ELEMENTS.

"IMAGE 10: Mesh on the mid surface of the model "

STEP 7: Appling the thickness to the meshed model.

After the modeling of the model is done we have to apply the thickness of the model as per the parent geometry.
As we have measured and stored the lengths, refer and apply the thickness on the meshed model.
Finally, the model has meshed and the thickness is applied to the meshed model.

"IMAGE 11: Mesh model after appling thickness "

LEARNING OUTCOMES:

CONCLUSION: The modeling and the meshing of the Instrument panel model is performed according to the given mesh parameters and quality criteria.

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