Users:Geometry Generation/Design Loads

From Carat++ Public Wiki
< Users:Geometry Generation(Difference between revisions)
Jump to: navigation, search
(Created page with "Neumann boundary conditions can be applied to design elements with respect to their parametric coordinates. <!-- === Parameter Description === {| border="1" cellpadding="3" cell...")
 
(→Example of a Complete Input Block)
 
(3 intermediate revisions by one user not shown)
Line 26: Line 26:
 
!        ID  TYPE    DE-EL    LOC COOR        D1  D2  D3    VAL
 
!        ID  TYPE    DE-EL    LOC COOR        D1  D2  D3    VAL
 
!===================================================================
 
!===================================================================
−
DE-LOAD    1      DEAD 1  u=10.0 D1=-1 D2=0 D3=0 VAL = 1   
+
DE-LOAD    1      DEAD 1  u=10.0 D1=-1 D2=0 D3=0 VAL = 1   
−
DE-LOAD    1     DEAD 1      D1=-1 D2=0 D3=0 VAL = 1  LD-CURVE 1
+
DE-LOAD    2     DEAD 1      D1=-1 D2=0 D3=0 VAL = 1  LD-CURVE 1
 +
DE-LOAD    3      MOMENT 1  DE-BREP 1 D1=-1 D2=0 D3=0 VAL = 1
 +
DE-LOAD    4      DEAD 1  u=5~7 v=3~10 D1=-1 D2=0 D3=0 VAL = 1 !values for u and v have to be knots
  
 
!!Load type not necessarily defined for element type
 
!!Load type not necessarily defined for element type
Line 33: Line 35:
 
!SNOW, SNOW_FL  + D1=-1 D2=0 D3=0 ! snow load from defined direction
 
!SNOW, SNOW_FL  + D1=-1 D2=0 D3=0 ! snow load from defined direction
 
!PRES, PRES_FL ! pressure load perpendicular to surface
 
!PRES, PRES_FL ! pressure load perpendicular to surface
 +
!CENTRIFUGAL            +      D1=1.0  D2=0.0  D3=0.0 VAL=1 CTR_PT = 0,0,0            ! centrifugal load accounting for a rotating with constant rotational velocity body acting along axis (D1,D2,D3) around CTR_PT with amplitude VAL (VAL = rotationalVelocity*density*thickness)
 
!MOMENT_TAN ! moment around center line = nurbs curve
 
!MOMENT_TAN ! moment around center line = nurbs curve
 
!MOMENT_G1, MOMENT_G1_FL ! moment around G1 / g1 (base vector of the geometric description of the element)
 
!MOMENT_G1, MOMENT_G1_FL ! moment around G1 / g1 (base vector of the geometric description of the element)
 
!MOMENT_POINT  + D1=-1 D2=0 D3=0 ! single moment around defined axis
 
!MOMENT_POINT  + D1=-1 D2=0 D3=0 ! single moment around defined axis
 
!MOMENT                + D1=-1 D2=0 D3=0 ! (single) moment around defined axis
 
!MOMENT                + D1=-1 D2=0 D3=0 ! (single) moment around defined axis
−
!PAR_G1
+
!PAR_G1                                                                                 ! load in g1 direction (has to be tested)
−
!PAR_G2
+
!PAR_G2                                                                                 ! load in g2 direction (has to be tested)
 
!TEMP         ! temperature load, equally distributed (+- epsilon)
 
!TEMP         ! temperature load, equally distributed (+- epsilon)
 
!DELTA_TEMP       (+ D1=-1 D2=0 D3=0 ) ! temperature load with gradiant over thickness (in defined direction) (+- kappa)                     
 
!DELTA_TEMP       (+ D1=-1 D2=0 D3=0 ) ! temperature load with gradiant over thickness (in defined direction) (+- kappa)                     
 +
</pre>
 +
 +
In order to activate them, they have to be added to the respective load combination.
 +
<pre>
 +
LD-COM 1
 +
  TYPE=LD-NODE  1  FAC= 1.0
 +
  TYPE=LD-ELEM  3  FAC= 1.0               
 
</pre>
 
</pre>

Latest revision as of 21:14, 4 March 2018

Neumann boundary conditions can be applied to design elements with respect to their parametric coordinates.

Example of a Complete Input Block 

!===================================================================
!         ID  TYPE    DE-EL     LOC COOR        D1   D2   D3     VAL
!===================================================================
DE-LOAD    1      DEAD	 1  u=10.0		D1=-1	D2=0	D3=0	VAL = 1  
DE-LOAD    2      DEAD	 1       		D1=-1	D2=0	D3=0	VAL = 1  LD-CURVE 1
DE-LOAD    3      MOMENT 1  DE-BREP 1		D1=-1	D2=0	D3=0	VAL = 1
DE-LOAD    4      DEAD	 1  u=5~7 v=3~10	D1=-1	D2=0	D3=0	VAL = 1 !values for u and v have to be knots

!!Load type not necessarily defined for element type
!DEAD, DEAD_FL  	+ 	D1=-1	D2=0	D3=0					! dead load in defined direction
!SNOW, SNOW_FL  	+ 	D1=-1	D2=0	D3=0					! snow load from defined direction
!PRES, PRES_FL										! pressure load perpendicular to surface
!CENTRIFUGAL            +       D1=1.0  D2=0.0  D3=0.0 VAL=1 CTR_PT = 0,0,0             ! centrifugal load accounting for a rotating with constant rotational velocity body acting along axis (D1,D2,D3) around CTR_PT with amplitude VAL (VAL = rotationalVelocity*density*thickness)
!MOMENT_TAN										! moment around center line = nurbs curve
!MOMENT_G1, MOMENT_G1_FL								! moment around G1 / g1 (base vector of the geometric description of the element)
!MOMENT_POINT   	+ 	D1=-1	D2=0	D3=0					! single moment around defined axis
!MOMENT                 + 	D1=-1	D2=0	D3=0					! (single) moment around defined axis
!PAR_G1                                                                                 ! load in g1 direction (has to be tested)
!PAR_G2                                                                                 ! load in g2 direction (has to be tested) 
!TEMP 										        ! temperature load, equally distributed (+- epsilon)
!DELTA_TEMP	       (+ 	D1=-1	D2=0	D3=0 )					! temperature load with gradiant over thickness (in defined direction) (+- kappa)

In order to activate them, they have to be added to the respective load combination. 

LD-COM 1
  TYPE=LD-NODE   1   FAC= 1.0
  TYPE=LD-ELEM   3   FAC= 1.0




Whos here now:   Members 0   Guests 0   Bots & Crawlers 1
 
Retrieved from "http://carat.st.bv.tum.de/caratuserswiki/index.php/Users:Geometry_Generation/Design_Loads"
Personal tools
Content for Users
Content for Developers