excitation by acceleration Freq resp(modal)

I have another question, I want to add 35G (343 m/s/s).

But I use the unit (ton, mm, MPa) in the model.

So Should I input 343000 mm/s/s ?  

Use SPCD card instead of DAREA.Whenever load is in the form of acceleration ,velocity and displacement ,we have to use SPCD card.

Download free eBook on Dynamic analysis using OptiStruct.

https://altairuniversity.com/free-ebook-learn-dynamic-analysis-with-altair-optistruct/

In chapter 14 ,example 14.2 and 14.3 we have applied load as acceleration.

Thank you Rahul san

How should I do about inputting unit?

How should I do about inputting unit?

 

your units are quite right.

But I use the unit (ton, mm, MPa) in the model.

So Should I input 343000 mm/s/s

Thank you Mrt san,

I'd like to confirm the SPCD value.

Can I check the value of SPCD after setting or reopening file? 

Can I check the value of SPCD after setting or reopening file? 

 

Yes, Either you can check the same by opening the fem file in any text pad or review from constraint panel.

Thank you Prakash san.

Hello Sir,

                  I am facing same error but you were mentioning to assign SPCD card but we were unable to assign the card.. hence please helps to solve this issue

Thanks and Regards

Mahantesh

Hello Sir,

                 I need some tutorials regarding the  FRF Analysis So kindly help me to get the tutorials

Thanks and Regards

Mahantesh   

Please download free eBook on Dynamic analysis using OptiStruct.You will find relevant tutorial and examples.

https://altairuniversity.com/free-ebook-learn-dynamic-analysis-with-altair-optistruct/

Thanks Rahul for your quick response

Hello Rahul,

                         Those tutorials are not supporting in 14.0 version and those belongs to 17.0 version so kindly send me the 14.0 version tutorial and if it possible send me to the below mail id mahantesh.mvj@gmail.com  

Thanks and Regards

Mahantesh

14.0 is very old version and upgrading to new version would help you to use new features of OptiStruct.