Jump to content
Sign in to follow this  
Roy Duan

How to do a Prestressed modal analysis with optistruct?

Recommended Posts

Hello everyone,

I want to do a prestress modal analysis? However, I don't know how to set up the case. Is there any example? Thank you

 

Best Wishes

Roy

Share this post


Link to post
Share on other sites
Guest

Hi @Roy Duan

Yes, you can perform PreTension Modal analysis through HM-OptiStruct using STATSUB (PRELOAD) case control command.

 

You need to create two load steps, the first step can be Linear Static analysis

 

In the second load step which is Normal modes, pick the previous Linear Static analysis under STATSUB(PRELOAD) as shown below:

 

SUBCASE 1
    ANALYSIS = STATICS

SUBCASE 2
    ANALYSIS = MODES
    STATSUB(PRELOAD) = 1
    SPC = 2
    METHOD = 3
 

Share this post


Link to post
Share on other sites
Sign in to follow this  

×
×
  • Create New...