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12th September 2012, 07:52 AM
#1
Winch bracket engineering
I have just drawn up plans for a winch braket for a p38 that fits in behind the factory bumper.
According to the Engineers Black Book, it will way 20.35kg which is quite acceptable.
But i'm wondering if anyone out there knows how to go about adding up the numbers to find out how strong it will be.
For example, the main cross beam is 100x4SHS, butt welded to 6mm plate at the ends. The anticipated load 24000lb (10886kg) is spread evenly over the centre 32cm - at what point will the SHS start to fail?
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12th September 2012, 08:34 AM
#2
There is nowhere near enough info there, but based on a 2 sec simulation i just ran on 100x100x4 shs using plain carbon steel, retained on both ends, 600mm long (as a guess?) with a 320mm long face having a load of 100000N (which is actually a bit less than your value) applied it doesnt look good!
Ignore the deformation scale of the graphics as its at about 30x
If you have complete drawings with relevant materials (or at least a lot more detail) and so on I could probably run a more detailed / accurate analysis for you.
Presumably the mount would be far stronger than that piece of SHS by the time the mounting plate and so on is applied
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12th September 2012, 11:45 AM
#3
Wow!!!! That's the sort of engineering program and knowlege I want / need. I didn't expect a simulation; but thanks!
Apologies for the lack of information, I know it's very scant, but posted it to give an idea of the sort of calculations (simulations) I need to make.
I'll transfer it all to cad and post it, and yes, it will be a lot stronger with the bracing and mounting plates.
It would be great if you could run a simulation for it.
Regards,
Benji.
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