I need some help with Pro/Mechanica. I am analyzing a wedge shaped
chopper mounting block and I would like to do a Modal analysis using
contact regions or free interfaces with a force pressing on the wedge.
Since Modal analyses are only calculating the natural frequency of
certain geometry, I think that Mechanica assumes everything is rigid.
However in this instance I would like to see how the frequency changes
with a varying preload, so I do not want Pro/E to assume the assembly
is a solid part.
I need some help with Pro/Mechanica. I am analyzing a wedge shaped
chopper mounting block and I would like to do a Modal analysis using
contact regions or free interfaces with a force pressing on the wedge.
Since Modal analyses are only calculating the natural frequency of
certain geometry, I think that Mechanica assumes everything is rigid.
However in this instance I would like to see how the frequency changes
with a varying preload, so I do not want Pro/E to assume the assembly
is a solid part. Anyone with any ideas?
I need some help with Pro/Mechanica. I am analyzing a wedge shaped
chopper mounting block and I would like to do a Modal analysis using
contact regions or free interfaces with a force pressing on the wedge.
Since Modal analyses are only calculating the natural frequency of
certain geometry, I think that Mechanica assumes everything is rigid.
However in this instance I would like to see how the frequency changes
with a varying preload, so I do not want Pro/E to assume the assembly
is a solid part. Anyone with any ideas?
I'm not sure if it assumes it is rigid or if it assumes it is static. That may
seem like the same thing but it may also mean that you just need to measure
modality with a mechanism in different positions. In any case, it definitely
does
not assume that an assembly is a single piece part. I'm sure you've assigned
each
a material and it is those material properties that are used in the
calculations.
It might be possible to consider an assembly a single part if each component is
made of the same material that's heat treated in the same way, otherwise not.
The
only other circumstance in which it could treat the assembly as single part is
if
it were made from imported solid geometry which has lost its material properties.
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