Tool Test-2

                                          INTAKE MANIFOLD - {TOOL TEST-2}

AIM: To mesh the given component using tetra element as per the quality criteria given in the data

GEOMENTRY CLEAN UP :

• A new ansa file is opened and the given model is then imported on the work page 
• the model is then viewed in entity mode from drawing style to check for any orientation issues and if there is any issues its then connected using tools.
• Turn on the cross hatches from face draw so that surface be selected easily 
• To join the near by  parts a topo is done from topology module. the pixel correction can be done using ,mesh module(perimeter=1,macro=1).
• the model is then subjected to geomentry check up to find out any missing surfaces, free edges , duplicates etc. when check up was carried out , ansa throwed out error messages,in which some of them were done manually using other tools.
• the surfaces are then splitted and defeatured with respect to the quality criteria. Any component whose cross sectional thickness is more than 5mm. Solid meshing methodology is generally followed as per the CAE standard.

MESHING:

• Before doing tetra mesh ,the surface of the solid model is meshed with shell element and then its been converted to volume mesh. the mesh parameter from utility is opened to enter the target element type etc.
• similarly, the quality criteria option is also selected from the same tool bar and the value given data is then entered accordingly. now each splitted surfaces are meshed seperately using mesh generation.
• normal trias and ortho trias are the element type used while meshing the surfaces.for  better mesh flow the region can be again remeshed using shell mesh.
• the element can be arranged uniform using smooth tool from shell mesh option and while using this tool some of the element gets displaced from the splitted lines and these can projected on to those lines using grids.
• After the shell mesh and checking the quality criteria and ensuring the parts are fully closed, its been now taken for doing tetra mesh. tetra mesh is done in volume mesh module and its turned on now we need to define the model as volume for generating volume mesh for current model from seperate volumes were defined by using volume mesh .

TETRA RAPID:

• The tetra rapid algorithm meshes the volume with tetra elements the parameter used during the automatic generation of volume element are defined in the open window.

TETRA FEM:

• This function automatically creates a tetra hedral mesh inside selected volume .initially with pyramid element if the starting surface mesh contain quad element . it is to be used mainly for structural application, volume to be meshed with this function must have been defined using the volume function .

TETCOLLAPSE:

• which will be checked while generating tetra hedral element it can be calculated by measuring distance of a node from opposite face.

CONCLUSION :

thus the engine intake manifold model is checked for geomentric error and performed with volume meshing using tetra element as per the quality criteria using ANSA.