Stb Axle Design
Stb Axle Design
(OP)
Basically I have a fixed shaft (no rotation) through two blocks spaced about 100mm apart with the the shaft effectively cantilevered out 100mm from one face of the blocks (total shaft length ~200mm). The load is applied in one direction on this cantilevered section. If I do the calcs on bearing stress in the block (nearest the load)the stress is okay. Wanting to be thorough I modelled it using FEA, the latter approach showed that the stress is significantly greater where the shaft intersects the block - which stands to reason as it is really a concentrated load here.
Basically I am after an analytical estimation for this stress which gives a more accurate answer than just using a bearing stress calc. Or is it just a matter of adding an appropriate stress concentration factor??
thanks
Dave





RE: Stb Axle Design
sancat
RE: Stb Axle Design
Melcon and Hoblit "development in the analysis of lugs and pins" Product Engineering June 1953 may give you insite into the loads on the pin at the two extremes of lug.
RE: Stb Axle Design
Andy
RE: Stb Axle Design
atlarson, you are correct in assuming that the blocks are relatively stiff and clearance is just enough to get the shaft into the blocks
Dave