How I can define an impulse function in ANSYS apdl?

- December 6, 2022 at 8:48 pm
  
  Mehdi Baghaee
  Subscriber
  
  I want to define an impulse function in ANSYS apdl. I could not find heaviside function in function editor to build it (H(t-t0)-H(t-t1)). How I can build this function in ANSYS apdl, easily?
- December 8, 2022 at 4:36 pm
  
  Bill Bulat
  Ansys Employee
  
  Hi Mehdi,
  If your intention is to apply a time-varying load, define a table array using MAPDL, for example:
  *dim,impulse,table,4
  impulse(1,1)=0,0,1,1 ! VALUES OF EXCITATION
  impulse(1,0)=0,1,1.0001,2 ! CORRESPONDING VALUES OF TIME
  /show,png
  *vplot,impulse(1,0),impulse(1,1) ! PLOT FUNCTION TO CHECK, .png WILL APPEAR IN MECH DIRECTORY
  /show,close
  acel,,,%impulse% ! EXAMPLE: APPLY ACCELERATION ON Z DIRECTION USING IMPULSE TABLE ARRAY
  Hope this helps!
  Bill

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