For simple on / off use, I don't understand there being an issue. You have 1 or 3 single phase objects that apparently have no sync required. That the SSRs are opto coupled, they are independent of their power source. I think it's irrelevant about phase sync and zero cross. Besides, the SSRs...
Ah, so the previous calcs weren't quite right either.
I'll pursue O'Roarks' formulas for a better answer, but with Some confidence that we're enough as is.
Thanks so much for your time & consideration.
The 6 X 8 tube is the current load bearing member and is known ok.
Our change is to the upper section and to be sure the wider end plate won't bend. I used the current designs' stress equations, with the new dimensions. I'm just wanting to know if I'm applying them right.
Enclosed shows...
The rectangular tube is what the load is attached to.
The plate is what the cylinder shaft (ram) pushes against.
It's inset in the tube & welded on 2 sides.
The dashed circle is the cylinder shafts' end (centered in plate).
I'm looking for verification of my numbers that the plate won't deform...
Ok, I'll keep that in mind. Here's the .pdf and corrected ram diameter. I thought we were changing cylinders.http://files.engineering.com/getfile.aspx?folder=e6da5acb-fc5a-4e46-9bce-a2b8902979ec&file=Alt_Top_Cap.pdf
Enclosed alternative looks like a better method. The tube base in both cases is the 6 X 8 X 3/8. Current design steps it in to the 5 X 5 X 3/16 about mid stroke. Using same tube as full length greatly simplifies fabrication of final ass'y, but I'm not an ME. I worked backwards on the...
