Recent content by xexorz

Ok I think I've got it now! Now, to translate the results: I'm using input: t = 0.25 inches a = 3 inches b = 3 inches W = 750 pounds L = 80 inches E = 10000000 (Aluminum? I hope) Results for deflection: 26.71 Inches?? This must mean it failed I assume?

Thanks for the corrections - I've updated the code and found the problem with cy (I hope) Do the maths look right now? I still haven't figured out which beam I need :) Thanks again to all for the help - I really do appreciate your time.

Are you asking from a practical perspective or just for information? There should be a drop in pressure the further from the source you go (as long as there is flow). Could also cause local turbulence in the line with a small "wall" and put sensors behind and in front of the wall. The wall is...

Thank you nvn! Would you please provide me with input variables and expected results (the one(s) that are producing bad results) so I can debug? Thank you! George

Thanks much edgepflow! I can't seem to find a chart with the moment of inertia but I did find an equation for it and put it into a PHP program - could you check this against a known L section to see if it jives or if I made an error? If not, can you point me out to a list of L moment of...

I need assistance identifying the required formulae to choose materials in building a span. The actual application is a bed frame of all things - but it can only be end-supported (simple end support). The entire bed will move up and down on rails (this is in a motor home - which is why...

This is great! I remember as a kid trying to build a reed pulsejet... Got as far as cutting the reeds by coating spring steel w/ paint and scribing lines / reverse electrolysis machining the metal. I'd be interested in seeing dimensions / plans - perhaps I can build one for fun one day...