Hi all,
I hope this topic was not mentioned before but among all curently related I couldn’t find the answer.
I’m trying to perform HSL train analysis in dyna, I don’t have much of experience but more or less I know what I’d like to receive as a result. However, as I observed the case is very let’s say ‘parameter sensitive’, mesh size, time step etc.
How should I input the information about nodal sequence?
Should the edge reference be enough for automatically generated nodal sequence?
I came across two ways to define contact points:
**1. CONT NR (nr of edge/sln?) V #V 0.0 ** auto created nodal sequence? (I assume)
**2.CONT nr 2 (nodal sequence nr from wingraf) V #V tmin 0.25/#V
CONT nr 5 V #V tmin 1.125/#V
CONT nr 7 V #V tmin 2.4375/#V
CONT nr 1 V #V tmin 5.9375/#V
CONT nr 6 V #V tmin 9.375/#V
CONT nr 3 V #V tmin 10.75/#V ** more manual way
On a simple model I’m getting acceptable results with 2nd approach but I can not say the same about the 1st approach. For a more complex model I’d like to use the more automated way of creating contact points but right now I’m not sure if I can rely on 1st approach.
I’m sorry if it’s just my lack of understanding but I just came to a dead end.
Can I use line/edge in CONT command or should it be a nodal sequence number that I can read from wingraf?
Szymon