# Timo Ksr

Members

28

1. ## Increase decimal precision in Query Coordinates

Thanks a lot!
2. ## Increase decimal precision in Query Coordinates

Hi, Is there any way to increase the precision of the coordinates of a node in the Query window? Right now the standard resolution is at 10^-3. 10^-6 would be a lot better. Thank you all.
3. ## Force Output from enforced Displacement

Now I got it! Thanks
4. ## Force Output from enforced Displacement

Hi, I get better results in a .spcf file now. Thank you. However, the sum must be close to zero, when only applying an displacement? For another model, this are the results. I guess the first line is my Loadmatrix at the node? The sum does noe come to zero, is that an indicator for any mistake? @KemalDemir I used Bernoulli Beam theory for one fixed end and one free end: 6*E*I*w(x) = F*x^2*(3L-x)
5. ## Force Output from enforced Displacement

Hi, I ran a model with enforced displacement with SPCD, as explained here: https://altairuniversity.com/learning-library/how-to-apply-enforced-displacements-correctly/ Then I requested the force as ouput via Global Output Request --> SPCF The model was just a regular beam and from beam theory the cumulative sum of the force should be around 824.99 N. In my .out file the force is extremely low and I cannot find the mistake? The model is in tons, mm, second, so the output should be Newtons. Thanks for your help everyone. TestBalken.out
6. ## Force Vector of Node Output

Hi everyone, I would like to get a force vector (x,y,z) for a special node if possible. I apply an enforced displacement to a node and then I need the forces at this node as output. I tried somethiong with Global Output SPCF, but I dont know whether that is the right way to do it? Thank you all! Best regards, Timo
7. ## Modal Effective Mass for Subcase exceeds total mass

Hi, I ran a modal analysis of my model and somehow the MODAL EFFECTIVE MASS exceeds the total mass in some cases. I assume that this is not how it should be? Can anyone help please?
8. ## Modal Analysis Results extraction

Thanks! Any chance that I can export an excel directly or do I find the result in the .out file only?
9. ## Modal Analysis Results extraction

Hi, How can i extract results from an modal analysis? I want something that looks similiar to this: Right now I can only find the modes in the Output file, but the percentage of mass would be helpful. Thanks in advance.
10. ## Parts with free DOF "grow" in Result of Analysis

The shaft grows, it has a rotational dof. It is connected to the middle part with RBE2 and CBUSH which connects the rbe2 spiders, which has a K6 = 0 Stiffness.
11. ## Parts with free DOF "grow" in Result of Analysis

Hi, I have a model with certain parts with a free degree of freedom (rotational, actually ball bearings). In the static analysis it happens, that the part "grows", which obviously is wrong, and I believe the reason is that it is not constraint for every dof. How can I fix this and still keep the dof6 unconstrained? Thank you all!

Hi, Can I change QUAD4 Elements to QUAD8? With 2D --> config edit its not working. It states: "Invalid conversion (such as adding nodes to an element)" But I am just changing the input for the solver, aint I? Thanks for your help.
13. ## Creating Mesh: dest has 2 unmatche fixed points. Node associations my be wrong.

Hi, Thanks for the quick response. This is just a cut out and actually there are kind of "arms" attached to this solid, whose mesh has to be considered. Line Drag or Spin would just create the mesh I believe. Thats why I am trying to fix this instead of creating a simple new mesh. Thanks.
14. ## Creating Mesh: dest has 2 unmatche fixed points. Node associations my be wrong.

Hi, When I create a SolidMap for one of my Solids it states in the left bottom corner: "Waring: dest has 2 unmatche fixed points. Node associations my be wrong." And the outcome is this: How can I fix this? Thank you.
15. ## Mass in .out file diffrent from Mass in Modell

Hi, I have two CONM2, but they are included. The total mass varies also from what HM calculates. In the .out file it gets to much mass, which means that I did not miss to export some parts. Any further ideas?
16. ## Mass in .out file diffrent from Mass in Modell

Hi everyone, I am wondering why the Mass in my .out file is diffrent from the Mass in my Hypermesh model. It is in tons, so dont wonder why its that low. This is from the .out file: This is the Design Space: And This is the rest: Thanks in Advance.
17. ## Tracking System Angle

Hi, I need to calculate the angle between a tracking system and the global system. How could I do that? I did not find a particular function to calculate the angle between a tracking system and a normal system. Thanks in advance

Thank you!
19. ## Does Optistruct have revolute joints setting example?

Hi, I do not understand what the Coordinate Systems are for? first grid and second grid are the nodes to connnect with the revolution joint i believe. But how is the axis for the rotational freedom defined and what reason have the GID1 and GID2? Could somebody please explain this real quick. My analysis does not work out. Thank you

21. ## Connect Shaft to Bracket, Simulate Ball Bearing

Hello, I have to connect a shaft to a bracket. In reality the shaft would be connected with a ball bearing but I try to figure out how to do it in Hypermesh. It is Imortant, because the shaft increases the stiffness of the whole structure. I have acceleration loads, so in my opinion rigids seem inappropriate because the Forces/Displacements have to be transfered either way. How could I do that? Thank you.

Thank you
23. ## ERROR 1728 in the input data

Hi everyone, I can not help myself any further with this error: *** See next message about line 74 from file: MidSurface.fem "SET 1 GRID LIST" *** ERROR # 1728 *** in the input data: Incorrect SET definition. Where could the problem be? I defined acceleration loads. The sets are called : ^accel_nodeset1 ^accel_nodeset2 I am doing a topography optimization and defined an functionresponse, in case this is relevant. Thank you.
24. ## More number of degree of freedoms with double dependency  than the number of independent degree of freedom

Hi, I checked my optimization setup and got this error: *** ERROR # 2933 *** There are more number of degree of freedoms with double dependency than the number of independent degree of freedom near grid ID 37283. PARAM,AUTOMSET is ineffective in this situation. *** Run terminated because of error(s) in the input data. I connected NonDesign Shell Elements to the Solid Designspace vie RBE2 rigids and think that the problem might appear there. I do not know what to do to fix this and would be thankful for any help. Best regards, Timo