hypermesh/nastran acceleration

[Michelechele]

Hello everyone,
I would like to understand how to insert hypermesh accelerations using as nastran solutor.
for me to understand I make a short example.. .
wanting to make a simulation of a lead table on wooden feet and wanting to see if this holds the force of gravity, applying the gravidational acceleration to the whole structure, once defined matter and constraints, how do I apply the loads or better acceleration?
I do not see the impossibility of doing this type of simulation without converting gravity into force... but I just can't do it using hypermesh accels acts as if I didn't apply any load.
I use the accels as load in the loadstep and the spc at the foot of the table.
as control card use sol 101 and param post -1.

I hope someone can help me solve this mystery that made me lose 2 days of evidence.

 

[SOLID]

Hi, Michael.
first of all, as is custom here in the forum you should first present yourself in the appropriate section.

As for your problma, did you check the value of spc reactions?
then the density of the material you expressed in ton/mm^3 and acceleration in mm/sec^2?

 

[Michelechele]

hello solid thanks to the answer. I will present myself in the appropriate section as soon as possible.
cmq I should have solved creating a load collector with card image grav and defining in the card the direction and amplitude of acceleration.
Now I'm doing the evidence to see if the results are reliable.