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Bolt Preload - which method lies behind the automated bolt preload process?

Hi everyone,

 

I am wondering which method lies behind the automated process of the bolt preload command?

 

In the NX Help I found this:

 

"Historically, bolt preload was modeled using either an equivalent thermal load approach or a multipoint constraint (MPC) approach. Both methods are capable of providing accurate results. However, both methods are labor intensive requiring multiple solutions, manual capture of data, and hand calculations."

 

In the literature I also found the constraint equation method.

Which method is the automated bolt preload using?

 

Thanks in advance for your support!

1 REPLY

Betreff: Bolt Preload - which method lies behind the automated bolt preload process?

[ Edited ]

Hello Elonora,

 

I found the following chapters about bolt preload in online documentation of NX11:

 

https://docs.plm.automation.siemens.com/tdoc/nxnastran/11/help/#uid:index_User:id505931:id677877

 

There is also a part about theoretical backround. I hope it helps.

I think its not necessarily bounded on program version.

 

Best wishes, Michael