Import loads by global coordinates?
Import loads by global coordinates?
(OP)
Hey guys,
I have some general FEA experience using ANSYS during my undergrad. Mech Eng education but I am now trying out NX NASTRAN for the first time. Is there a quick and easy way to import a set of loads by global coordinates? I was imagining basically a text file with 4 columns and as many rows as loads. Three of those columns would obviously be coordinates and the fourth the magnitude of the load. However, I'm thinking I would also need to include something to indicate the direction that these loads should be applied in. They are all purely Z-directional loads if that makes it easier. Maybe there's a way to have global coordinates and unit vector info along with the loads? The only reason I ask is because I have to import 30+ loads maybe 20 or 30 times and they will be different every time. Was hoping for some sort of even halfway efficient method to do this...
Thanks,
Tyler
I have some general FEA experience using ANSYS during my undergrad. Mech Eng education but I am now trying out NX NASTRAN for the first time. Is there a quick and easy way to import a set of loads by global coordinates? I was imagining basically a text file with 4 columns and as many rows as loads. Three of those columns would obviously be coordinates and the fourth the magnitude of the load. However, I'm thinking I would also need to include something to indicate the direction that these loads should be applied in. They are all purely Z-directional loads if that makes it easier. Maybe there's a way to have global coordinates and unit vector info along with the loads? The only reason I ask is because I have to import 30+ loads maybe 20 or 30 times and they will be different every time. Was hoping for some sort of even halfway efficient method to do this...
Thanks,
Tyler





RE: Import loads by global coordinates?
"On the human scale, the laws of Newtonian Physics are non-negotiable"
RE: Import loads by global coordinates?
RE: Import loads by global coordinates?
"On the human scale, the laws of Newtonian Physics are non-negotiable"
RE: Import loads by global coordinates?
Get a hold of the nastran quick reference guide and have a look at the format of the force card.
RE: Import loads by global coordinates?
RE: Import loads by global coordinates?
One option when the loading coordinates are not at EXACT locations of node points is to use RBE3 elements which typically "beam" the applied loads onto your mesh.