Sagar Desai 6 Report post Posted January 14, 2018 Hello Everyone, I am trying to do thermo structural analysis in optistruct. later I have to continue optimisation on structural analysis. Basically thermal expansions are only load for my optimization problem. I faced following difficulties and trying to resolve them, 1. thermo structural analysis in optistruct- ---- I have referred all tutorial and discussion available a I did find any direct method to read temperature from my thermal analysis and apply it as load in structural analysis. I have pipe carrying hot fluid and I have convection heat loss so direct TEMP use in static is not possible for me and off course I have referred Coupled Linear Heat Transfer/Structure Analysis , however problem is I need to use structural subcase id as reference to my optimization so I cant use CASE_UNSUPPORTED_CARDS control card. 2. How to request temperature output in static analysis---- some how if I am able to run structural run with TEMP in static analysis, I will have to compare my temperature contour. So how can I request thermal output in static analysis results. (already have tried loadstep--> edit-->OUTPUT-->THERMAL. didnt work) 3. How can I use DRESP2 in optimization, already have found one discussion on same but corresponding tut link is expired. Basically I want to use relative displacement in my optimization as constraint. Thank you Quote Share this post Link to post Share on other sites
Guest Report post Posted January 15, 2018 Hi Sagar, Did you check TEMP_LOAD? Edit the Structural loadstep and refer the thermal subcase ID in TEMP_LOAD. Please check if this helps. Quote Share this post Link to post Share on other sites
Sagar Desai 6 Report post Posted January 17, 2018 Thank you Prakash It works as you have explained however in HM14. I guess hm 12 is not having these options available. Thank you again Quote Share this post Link to post Share on other sites
Guest Report post Posted January 17, 2018 Hi Sagar, Yes, please update to latest version to use added features. Quote Share this post Link to post Share on other sites