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drop off in two directions

Rahul_P1

Hi,

I would like to applicate a drop off in two directions X and Y.
I program as follows in the file .fem but the optimization does not run, please find the error below.
img]<br>[img]

How can I apply this option without mistakes ?

Also, if I put this option (drop off) in the free size optimization. Do this option stay until the end of the optimization ( size and shuffling) ?

Many thanks

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Rahul_P1

Hi Benoit,

In field 6 you must have Maximum allowed drop-off for the PLYDRP constraint, this is the reason for the error.

You need to use PDDEF

Optional definition to fine-tune the drop-off constraint. Currently only DIRECT is available to request directional drop-off, in which case PDX, PDY and PDZ specify the drop-off direction.

as in the image below this will be in the 5th field in the next line, try removing comp and plydrp from the second line.

read Reference Guide > Bulk Data Format > Input Data > Bulk Data Section > DSIZE

Rahul_P1

thank you very much for your reply.

in first I run the optimization with:
DSIZE 1 STACK 1
+ COMP PLYDRP ALL PLYSLP 0.0125
+ DIRECT 0.0125 0.0125

And it seems that it does not work, is it the correct procedure ?
The first line (+ COMP PLYDRP ALL PLYSLP 0.0125) is necessary ?

Could you please send me an example of correct script for this command ?

Many thanks per advance,

Rahul_P1

Benoit,

Here is an example

with the relevant optional continuation lines

PDX, PDY and PDZ are real numbers.
These values are used to specify the drop-off direction when DIRECT is input in the PDDEF field. They specify the three components of a directional vector defined with respect to the basic coordinate system.
Example:
If drop-off control is required in the X-direction then 1,0,0 can be defined in the PDX, PDY, PDZ fields respectively. 0,1,0 can be defined for Y-direction drop-off control.

Rahul_P1

Many thanks for your help it works !