PDA

View Full Version : welded tubes in SES



ben86
04-25-2013, 06:26 AM
Hi guys! i'm compiling the structural equivalency spreadsheet and i have a problem in the "welded tubes" tag. what does this tag refer to? in the fsae rules i can't find any reference, except the rule T3.4.1. Has somebody got an old SES to upload with some images that could help me to understand? Is there a guide to the SES compiling? thank you so much...

Michael Royce
04-26-2013, 05:45 PM
Ben,
There is a half a chapter on the SES in our book, "Learn & Compete...", written by Dan Jones, who was the lead writer of the SES. That should help you.

ben86
04-28-2013, 02:22 AM
thank you Michael! http://fsae.com/groupee_common/emoticons/icon_smile.gif I'll look for your book! Has anybody else had my same doubts as for welded tubes?

raptor93
01-29-2014, 07:54 AM
what should we write for the thickness of panel in the columns such as main hoop bracing support or front hoop bracing support?
and should we give the material steel for mild steel?
Thanks in advance.

Michael Royce
02-25-2014, 12:47 PM
Ben,
I see no tab that just says "Welded Tubes". There is one that says "Welded Tube Inserts". This one applies if you are drilling holes with a diameter greater than 4 mm in any of the mandated tubes. On this tab the examiners want to see dimensioned drawings with A and I calculations comparing the section with the insert to the baseline tube without the hole.

Michael Royce
02-25-2014, 01:00 PM
raptor,
If your chassis is tube frame only, i.e. no composite panels, on the tabs such as "Main Hoop Bracing Support" and "Front Hoop Bracing", up at the top where it says "Construction Type" you enter "Tubing Only". If there are numbers already entered in the yellow boxes in that column, ignore them, or enter "0". If you have entered "Tubing Only" at the top, the SES calculation ignores any number entered in the "Your Composite" column.