Jump to content
  • Announcements

    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 
Rahul Ponginan

Define the relative displacement between two nodes as an optimization response (DRESP2 / function response)

Recommended Posts

Hello,


to define the relative displacement between two nodes as a response value for the optimization (or generally speaking a user defined function), you can use the DRESP2 response type. In HyperMesh, the DRESP2 entry is defined via the "response" panel, when chosing a response type "function". The function response needs to be linked to a user defined equation, e.g. in case of relative displacement u = d1-d2. The values d1 and d2 can be any other variable, reponse or table entry from your model. The following video shows the necessary steps to fully define the function response / DRESP2 entry for the optimization:


http://screencast.com/t/Re4OJEE0I8cS


You can also look up DRESP2 and the "Optimization responses" chapters in the online help for further details.


Jan


Share this post


Link to post
Share on other sites

For creating a user defined response, create two responses for the displacements. Create a dequation 

f(a,b) = a - b

Come back to responses, create a new response with type "function". Select the dequation.

Click Edit before create. Choose responses in the bottom panel. Number of responses = 2. Double click each response field in the top panel and select the two responses created earlier.

Click return, followed by create. Use this new response like any other response in setting up the objective, constraints etc.

Share this post


Link to post
Share on other sites

Thank you Prakash

 

I also able figure it out. Infact I need to create a relative displacement in radial direction between two ends of spring. So used two responses and defined RSS (Square of sums ) and defined a-b between those two.

 

Thank you again

:)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×