Compression loads on bronze bushings
Compression loads on bronze bushings
(OP)
If I am making a bar link system and I use bronze bushings on the pivot points. If I put force on the shaft momentarily against the bushing (impact load - while link is stationary), how do I calculate the allowable pressure on the bushing area? I have in the past taken half the circumference of the shaft by the width and that's how I determined the area of compression. But I don't think this is 100% accurate. Would the points close to the quadrant take more load then the points 45° to that?
I have searched and looked thru some books and I suppose I'm not researching the proper name of this type of load.
Thanks
I have searched and looked thru some books and I suppose I'm not researching the proper name of this type of load.
Thanks





RE: Compression loads on bronze bushings
RE: Compression loads on bronze bushings
RE: Compression loads on bronze bushings
RE: Compression loads on bronze bushings
RE: Compression loads on bronze bushings
Drums can have quite a bit of kinetic energy. Have you investigated how much energy your stop will need to absorb? Contact the bronze bushing company that was in the link that I posted earlier to ask about your particular problem.
I would also suggest that you consider something like pairs of pallet stops working in tandem.
h
RE: Compression loads on bronze bushings
http://www.connexusa.com/HTML/calculation.html
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RE: Compression loads on bronze bushings
I figured max velocity of the drums at 15-20fpm which would be about 3-4 in/s. I usually take an impact force of about 1/20th of a second. So 550lbs/32.16in/s^2 * (4in/s*20s) ~ 1368lb load.
We initially wanted to use one cylinder for this application, but as I think about it more. Simple is better sometimes and with all those joints and moving parts, it might be best to go with 2 individual stops as you suggested DVD.
I may not go with this idea, but definitely something I'd like to know for the future.
Thanks uncles for the post, That appears to be what I'm looking for, when I get home ill get more time to look at it.