Learning Forum

[Factoo,Anjum]

Hello all,

I have a cylindrical vessel which I have modeled using mid surface, most of the parts have constant thickness which can be assigned using sectype,,shell command followed by secdata. But one surface has variable thickness, which changes from 65mm to 110 mm. 

I have defined a table using *DIM command which defines the thickness with Y-coordinates. I have assigned this to the sectype using SECFUNCTION command. 

But when I mesh the surface, I dont see the tapered thickness, the EPLOT with /ESHAPE,on shows constant thickness (see plot below). How can I verify if the section thickness is defined correctly?

 

sectype,1,shell
*dim,var_thk,table,6,1

!Y-coordinates in meters 
var_thk(1,0)  = -1.405
var_thk(2,0)  = -1.442
var_thk(3,0)  = -1.479
var_thk(4,0)  = -1.516
var_thk(5,0)  = -1.553
var_thk(6,0)  = -1.590

!thickness in meters
var_thk(1,1)  = 0.110
var_thk(2,1)  = 0.101
var_thk(3,1)  = 0.092
var_thk(4,1)  = 0.083
var_thk(5,1)  = 0.074
var_thk(6,1)  = 0.065

secfunction,%var_thk%

 

[mrife]

Hi

The *DIM command is missing the label telling that this is Y position data:

*dim,var_thk,table,6,1,1,Y

Then the Y data should be is ascending order.  So -1.59 is the first value and -1.405 is the last.  Then flip the thickness values as well.

Mike