Direct Transient Dynamic Analysis Problem

Altair Forum User

Hi

 

I have a connecting rod that is subjected to two loads, Tensile (Admission phase) and Compression (Combustion phase). Both loads have TLOAD2 as their card image and hence each of them have their own loadstep.

 

When observing the results, i would like to see both loadsteps one after another eg: t1 : Combustion , t2 : Admission, t3 : Combustion , t4 : Admission......

I have derived both results together but it showed me the combustion results first then after t500 only it will show admission.

 

Is there anyway to correct this?

 

Regards.

Altair Forum User

Hi @Intan

 

Did you use Superposition in derived load step?

 

Maybe you should try to include bits of timestamps from two loadcases?

 

Did you try that/

Altair Forum User

Hi @Prakash Pagadala,

 

I've tried superposition in derived load step but apparently it is only for linear problems. My problem is a transient one.

 

Regards.

Altair Forum User

Hi @Intan

 

OK, please try steps in derived loadsteps. Linear superposition works only with linear static results.