How to decide the Event Time

Karthic_22061

Hi All,

How can I decide the event time for Explicit simulations? since the actual event time will cost computing time

By thumb rule 0.3 is the event time for quasi static analysis. Its derived from the natural frequency of the system/part.

 

My doubt is whether I should consider the natural frequency of the entire assembly or the individual part under study?

 

Thankyou

N.K

Altair Forum User

HI,

 

I don't think the implicit way of calculation will work here. In explicit it is all considering load duration which depends on the bulk wave of the media. You can refer to Belytshcko's book for the same. 

 

By experience, say for example the simulation is about the drop test. So one has to run the analysis until the parts come in contact...