Shrink Fits for compound tubes
Shrink Fits for compound tubes
(OP)
Hi, does anyone have any idea where I might find useful information (i.e. formulas, theory, etc) that will enable me to calculate a compound shrink fit for 3 or more cylinders? That is a cylinder fitted in a cylinder fitted in a cylinder?
Many thanks
Many thanks





RE: Shrink Fits for compound tubes
If you can't find exactly want you want, at least getting smart on the math techniques would allow you to set up something, possibly on a spreadsheet, for your own applications.
RE: Shrink Fits for compound tubes
http:
RE: Shrink Fits for compound tubes
The frictional load is the unit load times the contact area times an assumed coefficient of friction.
You could do it closed form, or use a numerical solver to find a solution.
I know that's kind of general, but in the end, you have a quantity of cylinders that are under external or internal pressure that have a single diameter at each interface.
RE: Shrink Fits for compound tubes
RE: Shrink Fits for compound tubes
I haven't come across three cylinders shrink fitted together
before, I found this site for dealing with two:-
http://ww
desertfox
RE: Shrink Fits for compound tubes
Going with Strecon utilizes the best mechanical property of metal containers. Once you give Strecon your force parameters their experience will be the best bet for success and safety.
Of course if your application isn't large rings with large pressure than this won't apply so much.
===================================
Forging http://mech.e.tripod.com
-------------------------------------------------
Ddraig Breuddwydia....www.tailofthedragon.com
RE: Shrink Fits for compound tubes
http
RE: Shrink Fits for compound tubes
RE: Shrink Fits for compound tubes
Watervliet does.
Mike Halloran
Pembroke Pines, FL, USA
RE: Shrink Fits for compound tubes
I also have a copy from a code, not a specific code, package at the old work place on three multi-layer vessels, I thought we had only one, where it appears that the stress information was developed by calculating the contact stress for each layer and in some way combining them to arrive at the actual stress at operating conditions, 1250 paig @ 250C. The calculations were originally copied by mimeograph and are not in very good shape, extremely hard to read with parts completely missing. They are attempting to find the original hand calculation, graphite on paper. They closed our or technical library and in so doing destroyed a lot of this type information.
I.L. Spain also has another book on high pressure.
http
ssure+vessels&source=gbs_navlinks_s
You might be able to find this and other books in a library near you.
http://www.worldcat.org/
Another approach might be to find information on the large "casks' that hold the apparatus for making synthetic diamonds. The casks were made by the combined method.
RE: Shrink Fits for compound tubes