stevesmiles1
Automotive
Problem Background:
-------------------
1.Simulation of stress in a structure due to applied loads from unbalanced rotor-bearing system.
2.Have force data (vs. time) to apply to the structure at 2 bearing locations.
3.Structure is 100,000 elem 3D solid tet mesh 92.
4.Ignoring interaction between rotor and structure right now.
5.Initial approach has been to apply the force vs. time data at the bearing points on the structure, using full transient analysis. (Would like to use harmonic type through to get sustained response!)
6.My idea was to select nodes on a circle at mid-bearing, apply the force data in time-lag fashion to the nodes on the circle to simulate rotating force.
7.I have experience running transient analyses w/ manual input load steps.
8.As there are a lot of points in the data I think a table is the right approach.
9.I think I know how to make a table of the data, t & F.
Questions:
----------
A.How do you use (or reference) the table data in the transient simulation?
B.Is there a better approach to this problem???
I think the problem is the rotating load causes forces in
all directions so this can't be simplified...
Unfortunately don't have v10 w/rotordynamics analysis, don't know if that would help?
Thanks so much!
-steve
-------------------
1.Simulation of stress in a structure due to applied loads from unbalanced rotor-bearing system.
2.Have force data (vs. time) to apply to the structure at 2 bearing locations.
3.Structure is 100,000 elem 3D solid tet mesh 92.
4.Ignoring interaction between rotor and structure right now.
5.Initial approach has been to apply the force vs. time data at the bearing points on the structure, using full transient analysis. (Would like to use harmonic type through to get sustained response!)
6.My idea was to select nodes on a circle at mid-bearing, apply the force data in time-lag fashion to the nodes on the circle to simulate rotating force.
7.I have experience running transient analyses w/ manual input load steps.
8.As there are a lot of points in the data I think a table is the right approach.
9.I think I know how to make a table of the data, t & F.
Questions:
----------
A.How do you use (or reference) the table data in the transient simulation?
B.Is there a better approach to this problem???
I think the problem is the rotating load causes forces in
all directions so this can't be simplified...
Unfortunately don't have v10 w/rotordynamics analysis, don't know if that would help?
Thanks so much!
-steve