Learning Forum

[lsjenson]

Hey Everybody,

 

I am trying to find the stress on the fins of my rocket during flight.  I am using static structural for this analysis but I do not believe I know how to constrain the rocket properly as there is nothing static about a rocket during flight.  Does anybody have any idea what I should do to constrain my model, attached are some images and force constraints I've already applied.

 

Thanks, 

Larry

[Ashish Khemka]

Hi,

It might not be possible for Ansys employees to comment on this query but please wait for other members to chime in.

Regards,

Ashish Khemka

[Dennis Chen]

Hello Larry, I would like to ask you to talk a little bit about the exact objective of your analysis.   Depending on the objective, a static analysis may not be the correct approach to begin with and that is why it seems difficult to figure out how to constrain your model.

I can add:   A static structural analysis is essentially solving for static equilibrium (F=KE) as I am sure you know.   T I supposed one can still study a moving object if the frame of reference is moving with the object and you can try to look at how the object would deform under load as if you are sitting on top of the object moving with it.   Does that sound at all like what your problem statement would want you to do? 

Problem statement with a focused object is the key here in my opinion.