I am trying to simulate a disc spinning in an engine block. The engine
block would prevent the disc from expanding radially but using this
material (cast iron) it should not expand much anyway.
I have applied a symmetry restraint on one side of the disc and a
radial restraint on the outside diameter. This appeared to be the best
way to restrain the part but it does not seem to be working the way I
thought it would. Using hand calculations I have found that on the
outside diameter of the disc the displacement should be around 0.76mm
but the analysis is coming up with around 7mm and the stresses are also
incorrect.
I have also run the analysis by making one side of the disc conical
and adding a restraint to the resulting point. This gives stress and
displacement results close to the calculations but this is not really
how I want to run the analysis as it creates high stresses when the
point is restrained.
Does anyone have any ideas why the radial restraint isn't working like I expected?
Alan
block would prevent the disc from expanding radially but using this
material (cast iron) it should not expand much anyway.
I have applied a symmetry restraint on one side of the disc and a
radial restraint on the outside diameter. This appeared to be the best
way to restrain the part but it does not seem to be working the way I
thought it would. Using hand calculations I have found that on the
outside diameter of the disc the displacement should be around 0.76mm
but the analysis is coming up with around 7mm and the stresses are also
incorrect.
I have also run the analysis by making one side of the disc conical
and adding a restraint to the resulting point. This gives stress and
displacement results close to the calculations but this is not really
how I want to run the analysis as it creates high stresses when the
point is restrained.
Does anyone have any ideas why the radial restraint isn't working like I expected?
Alan