Week 3

Aim: To generate mid surface and meshing in the given model. geometric errors and qualities are fixed in the process.

Procedure : 1.first ANSA is opened and the model is imported.

2. the whole model is selected and topology is applied. using check geometry , model is checked for errors and it is either auto fixed or manually fixed. triple cons are removed manually by applying topology. the cons are released using relase command in topo mode.

3. after geometry checking , mid surface is generated. offset is the comamnd used to generate mid surface. the outer,inner and features are extracted seperately. to apply offset we need to study about the different parts present. either in feature or in entity mode offset can be applied. the thickness of the part for which mid surface to be generated is checked and half of its value is offsetted.

4. after generating mid surface for each parts , PID is set. PID is set to split the mid from the whole part and it is kept seperately.

5. any of the extract is selected and meshing is done. BEST mesh option is used to do meshing and there are other commands too and it can be used accordingly. quality criteria is set after meshings and it is studied.

6. unwanted trias, the mesh flow, and trais in fillet regions and the node's maxi and min lengths are checked using quality criteria. they are rectified by using options like split.paste.smooth,reconstruct,reshape.

7. it is good to check for geometric errors then and there.

Learning outcomes :

using new options helped to study about software even better. fixing complicated meshes was learnt.

conclusion :

the following quality criteria was fixed and meshing was done.