How to apply initial velocity in Optistruct

Suresh J

Hi,

Can someone please explain how to apply initial velocity for a particular part in Optisruct?

Altair Forum User

Hi Suresh,

 

What is the solution sequence you are trying to solve?

 

 Thanks 

Vikas

Suresh J

Hi Vikas,

I want to perform fatigue analysis by simulating drop test analysis. 

Suresh J

Hi Vikas,

Kindly let me know if you need more details on the request. I've seen that there is a option called 'InvelB' but, I am not sure what it mean by Body identification number and how to define it? 

 

Altair Forum User

Hi Suresh,

 

If you want to carry out a drop test, I would suggest to use RADIOSS which is based on Explicit techniques. 

 

In Radioss you can apply initial veloctiy through /INVEL card which is supported through HM

 

Thanks,

Vikas

Suresh J

Hi Vikas,

 

Thanks for your reply.

 

Does Radioss support fatigue calculations? Ideally I would prefer to go with Optistruct as I do not have prior experience in Radioss block format. Could you please suggest any equivalent method to do drop test in Optistruct followed by fatigue?

Altair Forum User

Hi Suresh,

 

Coukd you please share me your officially email I’d. We can connect through WebEx and take this forward 

 

Thanks,

Vikas

Suresh J

Hi Vikas,

 

I've your mail I'd and have sent out a mail to you.