Reply To: Initial Velocity Generation

[Pedram Samadian]

Hi Valery,

Can you please show your specified output interval histroy that includes both the implicit and explicit parts of your model? The image in your 4th comment shows that as the solver changes from implicit to explicit, an output is written in the d3plot. Where is that 0.02 second gap?

The *LSO_TIME_SEQUENCE card may also help you for managing output writing (LS-DYNA Multiphysics Manual).

Using Velocity_Generation_Start_Time, the initial velocity occurs only in the regular transient phase after dynamic relaxation (if used). Neither PHASE value will cause initial velocity to be imposed in the dynamic relaxation phase. It is surprising that the velocity does not start from what you specified, but given the previous explanation, maybe dynamic relation is being applied during that period.

Please also make sure to use the lastest LS-DYNA solver downloadable at LS-DYNA (user=user) Download Page(username: user & password: computer). The double precision type is recommended.

I hope this information helps you.

Pedram