Dear all,
I am doing a stress analysis of a piping system considering the wind load.I have used user defined inpit table Elevation vs Pressure.How do I fix the origin for zero elevation?does the programe automatically fixes the starting node at the zero elevation for application of wind load?

Regards,
Ujjwal Kundu

There is an icon for global co ordinates in the input screen.

The origin (the first node) of the model is assumed to be at coordinates (0., 0., 0.) - however it is a good idea to get in the habit of setting this any time you introduce environmental loads.

In addition to the toolbar button (icon), you can find "Global" on the "Edit Menu", as well has the keyboard command "Alt+G".

Look at this previous post also:

http://www.coade.com/ubbthreads/ubbthrea...=true#Post19812