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Re: Testing a cavity under-water with uniform pressures.
Does checking the "Use soft springs to stabilize model" box allow you to do what you want?
I can't say whether or not this setting will adversely affect the accuracy of your simulation results, but it may get it to at least run. I just ran a quick test on a sphere and it threw up a warning about large displacements, but it ran with that setting on. You could also try fixing a very small split in the surface, just to give it something rigid to work around.
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Re: Testing a cavity under-water with uniform pressures.
Hey thanks for the reply! That did work to run the sim! Although like you had said i don't know how it would affect the accuracy. I more or less made a tube and applied 15,000-psi uniformly to the exterior. FYI this is the pressure at the deepest point in our ocean. According to the simulator my displacement was 6.221e+005 MM. By some math here that equates to almost 2,500 inches.
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Re: Testing a cavity under-water with uniform pressures.
How about you split your model along a symmetry plane and apply a roller fixture along that plane, then apply pressure to the rest of your exposed face. Should get you closer to a realistic result.
And I would make sure that plane lies parallel to the direction of gravity, so you can take into account depth pressure variation if your object is quite large.
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Re: Testing a cavity under-water with uniform pressures.
Would this still account for rigidity when there is structural objects? How would solidworks understand how a crossbeam supports the structure if i split it?
Also Solidworks appears to be very very VERY far from accurate unless i am not doing this correctly. When applying my pressures a solid steel ball flattens to a pancake at 15,000psi -_- . That's extremely inaccurate. Anyone have an idea what i could be doing wrong?
I'm simply applying 15,000 psi uniformly to an external surface.
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Re: Testing a cavity under-water with uniform pressures.
Solved that issue. You NEED to fix a position. Whether its an arbitrary shaft or connector of some kind. It simply just needs to be fixed. With Soft spring on it bounces where-ever you want and ultimately the results are very not correct. Made some little feature that i fixed along my model and it was literally 8 exponents in MM difference in displacement.
