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Urgent help needed! - how to speed up SOL 106 analysis in Nastran 2018?
I took a look of the bdf file. For reducing the amount of f06 output data you can set all your outputs as 'plot' instead of 'print', e.g., DISPLACEMENT(PLOT) = ALL. So all the output will be sent only to the results file (xdb, op2, etc). In order to simplify the model we can do many... -
Urgent help needed! - how to speed up SOL 106 analysis in Nastran 2018?
Hello, Sorry but I could not find the attached file so, without reviewing the model, I can´t say very much. The following ideas maybe could help you: 1.- I am aware that in version 2017, by default, Nastran assigns low amount of memory to the solver. You can check this by searching for... -
Response Simulation Analysis Restraints and Enforced Motion Location
Hello, If you could upload the model, it would be easier to look for an explanation. Are you using RBE2 or RBE3? -
Contact body analysis sol101
I think that once the contact is achieved, constrain the cylinder in the load direction should not be necessary, because the plate has already been constrained and with the contact both components will work together.- dfreire
- Post #5
- Forum: MSC.Software: Patran
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Nastran sol 129 non-linear transient analysis - Gap element usage
Hello, If you are using Altair software, it is better to get the results as *.op2 file (see attached image). Hyperview does not like very much the *.xdb files. You only need to change the POST parameter from 0 to -1, and you can also remove the DBFACT=4, it will be no needed. I would follow... -
Issue with contact in SOL 400
Hello, A good contact definition is quite difficult to define, but there are some guidelines that one should use. I think they can be found in the nonlinear guide (specific for SOL400). - It is recommended that the slave bodies IDs be lower than the master IDs. However you use ISEARCH=0, that... -
Importing geometry into patran
Hello, There is a specific forum about Patran, and maybe there you will get more help. I cannot give you an advice becauce I use HyperMesh as preprocessor. -
Tank deformation at elevated temperature
Hello, Is there any plastic strain when the tank is heated up to 600deg-C? If so, it should be a good idea to consider different nonlinear steps, first heating the tank and, then, cooling it. The easiest way to do it is carrying out a 153 - Non-Linear static coupled with heat transfer... -
Exclude part/mesh from solver
Hello, I do not use NX but if you want to deactivate part of the mesh, I mean, no considering it, the easiest way to do it is removing that component. Maybe I did not understand what you need, so I can be wrong. -
Normal modes and FRF in the same run
I found it, it is managed using ANALYSIS Case Control command, defining in the first Subcase ANALYSIS = MODES. -
Normal modes and FRF in the same run
Hello everyone!! I am interested in run an analysis to carry out both a SOL103 and a SOL111 in the same run, and I did not find if it is possible. I could use a Restart, but what I am trying to avoid the neccesity of saving the databases in order to keep as many memory as possible on the... -
Femap with NX Nastran - Stress Location for TET4 and TET10 elements
Hi, I do not use NX, but in MSC Nastran the integration options are explained within PSOLID entry in que Quick Reference Guide. Anyway, I usually work with tet10, specially if I am looking for stresses. Tet4 elements are very stiff (by definition, the strain is linear so the stress will be... -
Random Analysis in Nastran
Hello NastranQ, I do not know if it is possible to obtain only the RMS in the op2 file. Possibly it can be done, but I will explain what I do int these cases. What I usually do is to reduce the output RMS using a smaller set that contains all the critical components. If you do not know which... -
RMS displacement in Nastran
Hello, I have tried to load the displacement CRMS in HyperView with a model I have been working recently and it does not appear, as you said. I was obtaining the VM stresses, so I did not output the displacement results. It seems to be a problem of HyperView, because the displacement RMS can... -
What is NLMAX in nastran?
Maybe this thread could help you: thread1234-334952 If not, if you explain a little your model we can think about it. -
What is NLMAX in nastran?
IF you set PARAM,BAILOUT,-1 the model will run and, then, it is easier to debug your model because you can see if some part of the model are loose, for example. -
Sol 109 transient analysis
Hello, What kind of time history data do you need to input? TLOADi are used for inputing the excitation and, for damping, take a look at parameters W3 & W4. I am talking about MSC Nastran, but I suppose that NX will be the same. I hope it helps. -
Nastran In-CAD Thermally Bonded Contact Anomaly/Discontinuity
I think that you are defining a contact which will merge the both bodies, making them move together. If I am rigth, these kind of contact is not what you need for thermal analysis. What would I do? 1.- All preprocessors allow you to work with differents components, so it is easy to work with...
