Week 2 Challenge : Surface meshing on a Pressure valve

AIM-meshing the given model with three different target length(i.e. 1mm,3mm and 5 mm) and conclude best result.

OBJECTIVE-

1-topology cleanp of the given model of pressure valve.

2-generate mesh of target length 1mm ,3mm and 5 mm.

BODY-

Steps to be followed-1 open the given model in ANSA using File>open

    

2-enable labels of given icons in ANSA window by right clock on bottom and tick show labels

3-Go for geometry check by following step  tools>checks>geometry

tick all except unmeshed  and  click on exicute

image of error is shown below

4-created surface where single cons are present in the model

 GO   topo>faces>new

window as shown below appears

5- select any in    existing surface/coon/fitted

selest cons where surface is to be created >middle click    

alterante option go TOPO>cons>fill hole>select cons>middle click

6-repeat step 5 to fill all holes or surface where surface is absent or single cons are present

7-repeat step 3 now there is no error 

8-remove double cons where very amall area is formed or where distance between cons is less than mess length(i.e. 5mm)  GO  TOPO>Faces>cut>right click on cons to be romoved

9-swich into mesh mode  MESH>classic Mesh

change view fom EXT to PID

10-go     LISTS>Properties      

window as shown below appears

11-   right click>new>PSHELL>PSHELL

enter name and ok

12-repeat step 11and create all part's PIDs as shown below

13-apply these PIDs to respective parts of the model

right click on a particilar PID>show only

right click again on same PID>apply

 enable PID or PID region>select shown model part by box selection>middle click

14-repeat step 13  for all PIDs

image of model after creating all PIDs is shown below

15-set target length go  classic mesh>Perimeters>length

for MACROS and PERIMETER  one by one

select model by box selection >middle click>set target length as 1mm

16-GO Mesh parameter>target length(1 mm and minimum target length 0.5mm) and element type 'tria'

17-GO quality criteria>check all boxes and set maximum and minimum target length as 0.5 and 2 mm respectively

18- GO properties>right click on base surface>show only

19-GO  mesh generation>spot mesh>box selection of bse surface and middle lick

meshed part is given below

20- repeat step 18 AND 19  for all PIDs

images of all PIDs meshed are given below

21-NOW repeat step 15,16,17,18,19 and 20 for target length 3mm and 5 mm 

meshed model for 3 mm is given below

meshed part with 5 mm target length

1-base surface

2-body

3-column

4-inlet

5-isometric view of meshed model

6-outlet

7-spring

8-valve head

CONCLUSION-

meshed model with 1mm target length appear smoother and restore all feature of the model specially in spring where crossection dimension is low