Canadieng,
Very interesting, thanks. Just to make sure I understand...I'm trying to predict the deflection of 4" OD pipe, so as long as the calculated deflection is less than 40", the elementary equations are suitable?
Hi desertfox,
After making my own spreadsheet as well as playing around with the calculator, I think that u and x are the opposite of what I wrote earlier; i.e.
u=12 corresponds to a point 12 inches from the support point toward the outer end;
x=12 corresponds to a point 12 inches from the...
Thanks, everyone! This is great. One question: How are the distances "u" and "x" defined? I'm assuming:
u: chosen distance between the outer end of the beam and the nearest support point (i.e. u=12 corresponds to a point 12 inches from the end of the beam)
x: chosen distance between the center...
IRstuff,
Definitely, and thanks for the idea. I don't know what size/wall thickness/grade of pipe is pictured in the photograph (this was taken during a test run before the crane was shipped to our location), but could probably do some digging and find out.
-Adrienne
rneill,
Thanks for this. As a chemical engineer-turned-petroleum engineer who hasn't done statics since college, I wasn't sure that I could use beam equations to aproximate my situation. Now I know where to start. Your help is much appreciated!
-Adrienne
Hello,
I need to calculate the deflection of a 90-ft stand of drill pipe (three 30-ft joints screwed together) suspended at 2 lift points approximately 40 feet apart.
When our drilling operations commence, we will be moving hundreds of stands of pipe around our rig's storage area with a gantry...
