interference detection: false negative?

[graziano-g]

hi, in the axieme below you find the solid and its components, the command does not detect interference.
Can it be due to the fact that the roller is really a solid while the bearing is just a skin?
sw 2020
Thank you.

 

[Automazioni Mutti]

Hello, then, grace:

the file: 4206314 is a body of surfaces
the file: Countbt-00375 is a body of solids

the fact that they are different bodies (one of solids and one of surfaces) does not affect the outcome of the interference, more than anything else you have to flench the voice: "interference multibody parts" in the function of interference detection. just to check, I moved the bearing of theskf and detected interference
let us know, cordial greetings

 

[graziano-g]

Hey, sorry I'm late.
the red band is detected as interference since the coinage box as interference (the first at the top) is selected.
in this way the interference between the two extrusions is detected that generate two solid bodies in comtbt, interference due to the fact that the external circumference of the second extrusion is the result of the converting entity of the internal circumference of the first, are therefore two coincident surfaces.
if you detect interference on the comtbt multibody part you will get the same result with that activated selection = bevel 3 /raccordo1
if you detect the interference on the axieme this is referred to the only comtbt.
the interference between comtbt and 4206314 is not detected
Does anyone have any ideas?

Hi.

 

[re_solidworks]

the relief of interference is performed by finding the binding of volumes. in case "concidence as interference" is enabled, contact surfaces are also highlighted by the function. the importance of interference between a solid and a surface will never give a correct result because the software cannot find the "common volume" between solids.

 

[graziano-g]

hi, then it is necessary to fill the empty volumes to which the surfaces are the outer limit/skin to allow verification of interference.
a discrete break as that file, reported to the bearing, comes from skf....
patience.
Thank you.

 

[re_solidworks]

hi, then it is necessary to fill the empty volumes to which the surfaces are the outer limit/skin to allow verification of interference.
a discrete break as that file, reported to the bearing, comes from skf....
patience.
Thank you.

Sometimes I discharge the bearings from the skf site and have always arrived solid, never surfaces. I think it is wrong to create a component with a "skin" of surfaces if this is actually solid, not only for the detection of interference, but also for a matter of calculation of mass properties.