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Model dimensions are distorted

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javat33489
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(@javat33489)
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Hi all.

When importing a model from WORKBENCH into an LS Dyna prepost, model dimensions are distorted.

Tell me please. How to measure a model in LS Dyna prepost like this (image).

I have not found such a tool.

And how to set the units of the model? For example, in meters or millimeters.

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Negative Volume
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Hi @javat33489,

It looks like that image is already from LS-Prepost, but you measure by going into the Element tool tab on the right toolbar, then measure.

And LS-Dyna doesn’t necessarily have a function to change units, it’s not like other FEA solvers. It requires you to keep consistent units through the model dimensions, motion, material properties etc

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javat33489
(@javat33489)
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Posted by: @negativevolume

Hi @javat33489,

It looks like that image is already from LS-Prepost, but you measure by going into the Element tool tab on the right toolbar, then measure.

And LS-Dyna doesn’t necessarily have a function to change units, it’s not like other FEA solvers. It requires you to keep consistent units through the model dimensions, motion, material properties etc

>>It looks like that image is already from LS-Prepost, but you measure by going into the Element tool tab on the right toolbar, then measure.

Sorry but I couldn't find it. Can you take a screenshot?

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javat33489
Posts: 15
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In the menu on the right, there are two relevant menus: Element and mesh and element tools

but they do not have a ruler for measurements

 

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Negative Volume
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javat33489
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Posted by: @negativevolume

@javat33489 check the video below at the 17 min mark

https://m.youtube.com/watch?v=uFhkB_pvU8k&t=451s

Thanks! my answer at 17:25

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javat33489
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Please tell me

I have one more question

I am modeling die drilling When drilling, I specify all units of measurement in a single system, but I cannot show the speed of rotation of the drill.

Rotation speed in radians, for example 209 rad/s. If I use this speed it doesn't work, if I use 209000 then it works (time 0.001s).

I can not figure out how to correctly set the speed relative to time. Tell me please.

 

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Negative Volume
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@javat33489 sounds to me like your unit system was in milliseconds instead of seconds?

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javat33489
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Joined: 2 months ago

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Posts: 15

@negativevolume 

I figured out my type line number 5. And the rotation is given in rad/s

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