ApplyGeneralSurfaceLoads

Use SURF154 to Apply Variable Pressure

It is possible to apply general surface loads using elements

1. SURF153 (1D) SURF154(2D) Structural
2. SURF151 (1D) SURF152(2D) Thermal

First step is to generate the SURF elemnt using the Command ESURF for which you need

1. select the node on the surface which you are interested to
2. issue the command ESURF

Varing pressure as a fuinction of coordinate
Tangential + Normal pressure

Using TABLE for Variable Pressure Input

Description can be found in the Mechanical APDL manual section "_2.5.14.\xA0Applying Loads Using TABLE Type Array Parameters_"

*DIM,press_Z,TABLE,2,1,1,z, ,   
!*  pressione variabile linearmente con Z da 0 per z=0 a 5MPa per z=100
*SET,PRESS_Z(1,0,1) , 0 
*SET,PRESS_Z(2,0,1) , 100   
*SET,PRESS_Z(2,1,1) , 5 
!* 
CMSEL,s,nodi_press 
!*  
SF,all,PRES, %PRESS_Z% 

-- RobertoBernetti - 27 Feb 2013