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Simulation constraints for mimicking typical bolt hold downs

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justin.mortensen
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Simulation constraints for mimicking typical bolt hold downs

In class, we were looking at the different scenarios for best replicating a bolt or fastener hold down scenario.

We are trying to figure out what is best, or perhaps it does not really matter.  

For instance, if I had a bracket that was mounted to the wall, I might create a split face and constrain in all three directions a surface that represents the underside head of the bolt.  In addition, the back side of the bracket would be constrained in the one direction that represents the wall.  

justinmortensen_3-1686153924168.png

 

 

Another scenario might be to simply constrain the hole cylinder feature in all three directions:

justinmortensen_1-1686153241039.png

 

Lastly, a concept of putting a cylindrical "pin" in place and constraining in all three directions including the underside of the pin.  Then use contacts to set the relationships of the bodies (pin and bracket). 

justinmortensen_2-1686153713126.png

 

To me, it all seems to accomplish the same thing, that is fixturing the main body (the bracket in this example) so a solve can take a place with sufficient constraints.  

 

What are thoughts on this? 

 

 

 

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Message 2 of 2

Hi @justin.mortensen 

Here are two articles that may help with your simulation question.

Hope these help.

-Dan

 



Dan Banach
Sr. Technical Manager & Community Manager

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