Project 1 - Meshing of Floor Panel

2D MESHING OF MID SURFACE

AIM

The main aim to anlyse the geometric based correction in the given design and the generation of the mid surface of the given design and meshing based on the given parameters was undertaken and the quality criteria was analysed

PROCEDURE

*We will install the file which has to be used for the analysis

*We will import the design in our ANSA software

*We will run geometric check under checks manager and we will analyse the errors in the design

*We will first try to cover the single cons error in the design and we will covert the singles cons to double cons where ever needed

*We can use many commands like cut,insert,project,new surface fill hole and many other commands to elliminate the single cons

*After the single cons are elliminated we will run the geometric checks again to check for the single cons available and ones we have elliminated the single cons we can go for next stage of corrects which include cracks ,penetration and other geometrical errors

*The penetration are very difficult to be corrected as it is based on various parametrs of the surface

*Based on the practicality and the condition we will undertake various methods like the surface deletion ,new,fill hole,cuts insert and other commands to generate the corrected surface is generated

*after the penetration are ellimated we may notice that the curves in the design is not represented properly

*We can use the fine option and try to refien the curves at the various corners because it may improve the mesh flow along the surface while we undertake meshing

*After all the corrections are undertaken we can proceed to the next stage which is the developement of the mid surface for the given design based on the mentioned criteria

*As we know we have many methods which can be used to generate the mid surface for the given design we will select one which can generate a good result

* I selected the mid surface command to generate the mid surface for the given design as it is one of the simplest and takes less time as compared to other methods and the results which i got for my mid surface was satisfactory

*The mid surface results was generated with a thickness of 0.75

*The next step is to analyze the meshing parameters to be fulfilled for the given mid surface meshing

*The geometrical checks was initiated to elliminate errors in the mid surface before proceding to the meshing

*The mesh parameters were entered with average length kept at 4mm based on the minimum and maximum length given for the mesh

*After Parameters are assigned we will move to the assigning of quality criteria for the mesh were assigned

*After the quality criteria is assigned we will save the criteria and proceed to the next step of meshing

*We will assign Perimeters and macrons of length 4 mm to the mid surface under classical mesh

*We will then generate the mesh using spot mesh command for the whole mid surface

*After the initial mesh is generate we will enable hidden veiw to check for the mesh errors by analysing the elements which have failed in quality under offset

*We can correct the failed elements by various methods and we can start by improving the elements by clicking right on the offset

*We selected fix quality and then initiated the mesh correction and the offset was reduced to 504 which showa that the software effectively fixed the failed mesh

*We can use the task regenerate also for the fixing of the failed elements under improve and try to reduce the offset number

*We have now reduced the offset to 115 which can now be corrected using various other commands under meshing

*the failed elements were meshed again and the offset was reduced to zero which shows that the mesh has passed the quality criteria

*The mesh file was saved

*The mesh generated was saved in all the required file formats

TRIA %

The total trial elements= 3007

total elements =52374

tria concentration =5.74%

CONCLUSION

The given design was analysed and was corrected of all the errors and the mid surface was generated for the design and the mesh was generated based on the given quality criteria

*all the files are attached and the parent file google drive link --https://drive.google.com/file/d/1Z-6fRT8U1PKDE0clRBcPRaTZO1ZXWm76/view?usp=drive_link