[GiDlist] A question about conditio

[ţ־ΰ]

hi!
when I assign condition to node,I meet a problem.
I assign X condition on some nodes and then assign Y condition on some nodes(include some nodes I select when assign X condition),then I write a calculate file,those nodes I select both when I assign X condition and Y condition only have Y condition value,but the X condition is lost.Could you tell me the reason?

when I assign surface-load to element, why only one face of elements have load even if the element have two external surface?

lastly,could you tell me how to use the command *canrepeat,I can not understand the words in help file? can you give me other example?

best wish to you!

Yours,
Niu
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[Enrique Escolano]

If you desire to apply a same condition (same name with different values) more of one times to a entity,
this condition must be declared as CANREPEAT: yes in the *.cnd file.
If CANREPEAT: no (default), then the second same condition replaces the first:

Sample *.cnd:

NUMBER: 1 CONDITION: Face-Load
CONDTYPE: over lines
CONDMESHTYPE: over face elements
CANREPEAT: yes
QUESTION: X_preassure:
VALUE: 0
HELP: 2D case, X force for length unit
QUESTION: Y_preassure
VALUE: 0
HELP: 2D case, Y force for length unit
END CONDITION

Inside the bas file also exist a *CanRepeat keyword:
If command *CanRepeat is added after *nodes or *elems in *Set cond, one entity can be several
times in the entities list of the loop. If command *NoCanRepeat is used, entities will be just once
in the entities list.
By default, *CanRepeat is off except for the case of one condition that have the *CanRepeat flag already set.

Sample *.bas:

*Set Cond Face-Load *elems *canrepeat
*# if *canrepeat is missing, it is assumed by default in this case,
*# because Face-Load have CANREPEAT: yes
*loop elems *OnlyInCond
Elem number=*elemsnum, Nodes of the loaded face= *globalnodes Px=*cond(X_preassure) Py=*cond(Y_preassure)
*end elems


Regards
Enrique Escolano
----- Original Message -----
From: 牛志伟
To: gidlist at gatxan.cimne.upc.es
Sent: Wednesday, May 29, 2002 7:23 PM
Subject: [GiDlist] A question about conditio


hi!
when I assign condition to node,I meet a problem.
I assign X condition on some nodes and then assign Y condition on some nodes(include some nodes I select when assign X condition),then I write a calculate file,those nodes I select both when I assign X condition and Y condition only have Y condition value,but the X condition is lost.Could you tell me the reason?

when I assign surface-load to element, why only one face of elements have load even if the element have two external surface?

lastly,could you tell me how to use the command *canrepeat,I can not understand the words in help file? can you give me other example?

best wish to you!

Yours,
Niu


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