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Gravity External Loads

Question asked by Alexander Wallis on Mar 14, 2019
Latest reply on Mar 15, 2019 by Jay Seaglar

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The external Gravity Load feature, prevents the user from selecting planes of suitable features to define the direction. when you select a feature, it seems to take a extremely long time to register the feature, and then when pressing OK, it simply asks to select a feature for reference again.

This seems to be a fundamental bug and is happening on two different machines and in SW2019 SP1 and SW2019 SP2.

Need this sorted out quickly, as it makes the FEA outputs useless until resolved, as there is no other way to apply acceleration fields.

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Janko Stellaard Mar 14, 2019 6:58 AM
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I have tried it on my machine with 2019 SP2, but can't reproduce the issue. It seems to be model/workflow specific.

Another thing is that you should contact your reseller. They will check the issue and if it is a bug they will report it to SW.
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James Riddell Mar 14, 2019 7:47 AM
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You could try to create a plane either based on your geometry or the x-y-z planes and then select that from the model tree. (I find that it is usually easier to expand the model within the display area and scroll to the plane I want to use.) Gravity will then be applied perpendicular to the selected plane.
Do you have any pictures?
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Shawn Mahaney Mar 14, 2019 9:58 AM
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I have seen this before a few times. It seems to be a small corruption in the sim model, or unusual combination of factors with external references. I've always been able to work around it.

In this old case it was a matter of suppressing reference parts.
Can't pick gravity direction

I usually construct a 3D sketch independent of the model geometry from which to pick gravity and force vectors.
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Jay Seaglar Mar 15, 2019 8:28 AM
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Based on the symptoms, this could be the following issue that appears to only affect certain models:

SPR 943479 - "File specific: Unable to apply Gravity external load - Selected Reference is not retained followed by 'Select entity' message"
Workaround: Disable the "Show Preview" option under the Symbol Settings menu before selecting the gravity reference, or eliminate model's "warning" and "rebuild" errors

Please be sure to contact your SOLIDWORKS Value Added Reseller (VAR) to fully troubleshoot this issue, and mention this SPR number when you reach out to them. To get the most efficient help possible, send your VAR a SOLIDWORKS Rx Problem Capture with video that shows the behavior as well as your model files.
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Gravity External Loads

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