cantilever problem
cantilever problem
(OP)
Hi,
I hope someone can help me with the following problem.
I need to know what the minimum length and diameter of fixed support would be required on one end of a solid steel shaft of 320mm diameter with a 500mm overhang, to prevent any deflection from the horizontal. There would be zero load applied in this situation as it would be in a rest state. The shaft is currently 1000mm long and can be machined to achieve the required size.
I have tried some cantilever formulae but I can't get my head around them as it is outside my field of experience.
Any guidance would be most appreciated.
I hope someone can help me with the following problem.
I need to know what the minimum length and diameter of fixed support would be required on one end of a solid steel shaft of 320mm diameter with a 500mm overhang, to prevent any deflection from the horizontal. There would be zero load applied in this situation as it would be in a rest state. The shaft is currently 1000mm long and can be machined to achieve the required size.
I have tried some cantilever formulae but I can't get my head around them as it is outside my field of experience.
Any guidance would be most appreciated.






RE: cantilever problem
RE: cantilever problem
Regards
RE: cantilever problem
RE: cantilever problem
I just wanted to identify the minimum amount of material that would be required on the left side to enable rigid support of the shaft, the support blocks on the left side would be securly bolted to the machine platen.
I do realise that securing the shaft by half it's length whilst maintaining it's maximum diameter is the ideal solution, but due to press limitations I was hoping their would be a smaller ratio of left side to right side that would still work.
RE: cantilever problem
If you "heard" it on the internet, it's guilty until proven innocent. - DCS
RE: cantilever problem
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Nert
RE: cantilever problem
but back at the OP is the point it minimise weight ? (then keep the OD and machine out a bore). it sounds like you want to support the LH 1/2 on a couple of bearings. i would dtermine the weight of the RH (overhang) and the weight of the LH 1/2 separately (the LH 1/2 will vary as you "optimise" the section). self-weight appears to be the only load (as far as you've described things), easy enough to calculate. as a beam this is easy enough to determine the reactions (which willl size your support bearings) and the displacement of the end.
RE: cantilever problem
Anthony