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ePostler

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About ePostler

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  1. My question is somehow similar to this one here: I already conducted a simulation with OptiStruct similar to the one shown in the mentioned thread. I understand that possible contact surfaces are only defined in the undeformed state. However, my aim is to obtain a more advanced simulation. Is there a modeling approach that looks for new contact surfaces (within a defined search distance) during the calculation? Here is the hm-file of my test model: cylinder_cube_contact.hm And here a short outline of the model (unit system: N-mm-t-s): cube with edge length = 1 cylinder with diameter as well as length = 1 element size: 0.1 material: E = 210000 NU = 0.3 property card image: PSOLID force on each node = 1 (110 loaded nodes) all nodes at the lower side of the cube are constraint (dof 123456 locked) 2 sets of contact surfaces. one for each component interface card image: CONTACT type: FREEZE slave: cylinder contact surface master: cube contact surface MORIENT: NORM SRCHDIS = 0.01 load step: Linear static with SPC and LOAD analysis type defined
  2. Now I found the correct settings! I was a little too fast with sending my previous posting. Setting Load Step > SUBCASE OPTIONS > TEMP > SID (LOADCOLID) > TEMP > Loadcol (THERMAL_LOADING) did not help. Using those settings only led to the following error message to be prompted: *** ERROR # 720 *** Invalid static SUBCASE that has no load or enforced displacement. subcase id = 1 For a successful calculation of OS-1010 I used the following settings: Load Step > SUBCASE OPTIONS > TEMP_LOAD > SID (LOADCOLID) > TEMP > Loadcol (THERMAL_LOADING) Load Step > SUBCASE OPTIONS > TEMP_LOAD > SID (SUBCASEID) > TEMP > Loadcol (brew cycle) Figure 1 shows, where one can switch from LOADCOLID TO SUBCASEID and vice versa. Figure 1: Switching from LOADCOLID to SUBCASEID and vice versa.
  3. Thank you Rahul, I could find it. I managed to get results with some additional settings (see screenshot), but only once. Right now - unfortunately - I cannot reproduce them.
  4. I try to follow up OS-1010: Thermal Stress Analysis of a Coffee Pot Lid using HyperWorks 2017 - Student Edition. Everything works fine up to Step 8 Bullet 5, which is setting the Analysis type to Linear Static and SPC to constraints (Load Collector). Unfortunately, I cannot find the settings described in Step 8 Bullet 6. According to the tutorial (see Figure 1) I should now find TEMP in the Subcase Definition section between the Analysis types MPC and DEFORM. There, TEMP should be set to THERMAL_LOADING (Load Collector). Fig.1: Creating the brew cycle loadstep (Fig. 8 from tutorial OS-1010 with additional highlighting) As I cannot find TEMP in the Subcase Definition section (see Figure 2), can I use TEMP from the Subcase Options section instead? Has anyone here performed this tutorial successfully using HyperWorks 2017 - Student Edition? Fig.2: Screenshot from HyperWorks 2017 - Student Edition. TEMP is not available in the Subcase Definition section.
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