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Rahul Ponginan

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Everything posted by Rahul Ponginan

  1. FAQ3. How to remove fixed points from the surface?
  2. Rahul Ponginan

    Principal stress angle, Normal X

    Hi, i am using HyperView to visualize some results. When i open the contour Panel/Composite Stresses/normal X is this the stress in fiber direction in the damanded layer. When i open the contour Panel/Composite Stresses/Principal Stress Angle is this the angle between the principal stress vector and the stress in fiber direction? thanks
  3. How to get Min/Max result for a static/Dynamic subcase?
  4. HI Ming, Do you see an error on posting to the flux forum? exactly what is the issue you see on posting there?
  5. The Student Edition 12.0 is designed for 64 bit Operating System (windows specifically) 64-bit refers to the size of the address space. When you compile a 32-bit program, the code is turned into assembly language and each instruction has an address that is 32-bits long in memory. Conversely a 64-bit program uses a 64-bit address. The real advantage is that any given program can access a lot more memory in a 64-bit system. Also, 64-bit processors are instruction set compatible with 32-bit (on the same instruction set). That is, a 64-bit processor should have no issue running a 32-bit program. In the case of IA-32 and x86_64, this is handled by a library in the OS that truncates the memory addresses in a predictable way. The reason you can’t run 64-bit program on a 32-bit OS (even on 64-bit hardware) is because the OS is only concerned with half the memory address, and it gets instructions that don’t make sense to it.
  6. Rahul Ponginan

    Accessing the Drop Test Manager

    Hello, I wish to perform a drop test on a human headform. I have referred to the cellphone tutorial as well as a drop test manager tutorial. However, I am not able to find where exactly is the drop test manager located in Hypermesh. Is it a feature related to a specific version of Hypermesh? I am kind of new to this software and exploring it through my project. If possible, a screenshot would greatly help. Thanks, CSA
  7. Rahul Ponginan

    Tension only element

    Dear support, I would like to know how can I create a 1D element that resists to only tension (compression stiffness will be 0 , similarly to Link10 used in Ansys). Thank you in advance. Best regards Vitor
  8. Answer: For the 3D urban building vector data WinProp supports the formats as mentioned under: http://awe-communications.com/Databases/Urban.html Most common formats are MapInfo and ArcView Shapefiles. Some sample databases for urban scenarios can be provided on request.
  9. Answer: For the topography and land usage maps WinProp supports the formats as mentioned under: http://www.awe-communications.com/Databases/Topo.html Some free DEM data (topography) in a supported format with a resolution of approx. 100m can be obtained via: http://dds.cr.usgs.gov/srtm/version1/United_States_1arcsec/
  10. Answer: Generally the clutter data (*.mdb files) can be only used for rural scenario projects. If you want to use some of the clutter classes as vegetation layer for the urban scenario you can do this by converting the clutter map to a *.veg file, which can be done in WallMan by File => Convert => Vegetation Database. Here you can select the *.mdb and *.mct files and then assign corresponding heights to the vegetation classes in your clutter data (e.g. 10m to forest and 5m to park). Then these heights are saved as pixel data in a *.veg file which can then be considered in ProMan (under the Database tab) as vegetation layer for the prediction in the urban scenario.
  11. Answer: The pre-processing in WallMan is only required for the IRT ray tracing models (both for urban and indoor scenarios). The single pre-processing of the 3D building vector data determines the visibility relations between all the considered objects and ensure to accelerate the ray tracing predictions. The other wave propagation models, both the deterministic DPM model as well as the empirical models can be used without pre-processing the building data in advance.
  12. Answer: Rx power in dBm can be computed by subtracting the path loss in dB from the Tx power given in dBm (typically the computed path loss includes already the minus sign): RxPower [dBm] = TxPower [dBm] – Pathloss [dB]
  13. Answer: Please ensure to define the same settings in ProMan and the API, e.g. power value in dBm and power mode output PA (power amplifier, in this case the antenna gain will be added) or EIRP (in this case the antenna gain is already included in the defined power value). In the API the corresponding parameters of the WinProp_Antenna data structure are: double Power; /* Power in dBm */ int PowerMode; /* Power mode (0 = output PA, 1 = EIRP, 2 = ERP) */ Please note that the result values computed in the API are path loss in dB (not Rx power in dBm), i.e. you need to compare to the path loss of the GUI result.
  14. Rahul Ponginan

    Connecting mid-surfaces

    Hi all, For my project I need to do some linear static analysis on the cab of the truck. I am using HyperMesh as pre-processor and for solver probably I am going to use RADIOSS bulk format. I received CAD model in IGES format. I imported the geometry directly to HyperMesh. Because of thin walled structure I am going to use 2D shell elements. So far I created mid-surfaces from 3D parts and I did some geometry simplification. My current situation now is that I have around 30 mid-surface components with little gaps between them due to reducing from 3D to 2D (no thickness). My problem is I don’t know exactly how to proceed. Is there any special tool in HyperMesh to put all of the mid-surface components together and make them connected? I could translate all the components manually (tools>translate) but it takes a lot of time. Or maybe do you suggest me to leave the gaps between the components and use the connectors? I don’t have experience working with so many components. So far I worked with max 3 components and usually I just equalized surface edges between components or something similar. Thanks
  15. Rahul Ponginan

    Running Hyperworks on Linux

    Hey guys, I'm new in the forum and I have a problem considering to run Hyperworks on Linux. I create an environment variable with the "export varibale=value" command. I already checked if the variable was created which worked. Now I wanted to start ,for example Hypermesh, following the instructions in the installation guide by Altair. After typing the command in the terminal I only get a message about an "unexpected operator". Maybe there is still something wrong with the licensing path. I'm a really beginner with Linux, so I have no idea where I should looking for the mistakes. I use Linux Ubuntu on Parallels Desktop for Mac. Thanks for your help! Johannes
  16. Rahul Ponginan

    Confirmation request pending

    we see that your license request has been approved, please let us know if there are further concerns, thanks.
  17. How to contour results by configuration (1D, 2D or 3D)?
  18. Rahul Ponginan

    Create a Spring

    Hi, I would like to create a spring in Optistruct, to add an displacement dependant force, but I cant find any tutorial. To make it short I want to create my Radioss model in Optistruct.
  19. Rahul Ponginan

    FEKO Licence Error

    Just replace the old license file with the new one in the security folder.
  20. Rahul Ponginan

    GLSL program failed to link

    Please tell us the issue you see during viewing the results with snapshots and we will help you from there...
  21. Rahul Ponginan

    GLSL program failed to link

    Please find the latest supported hardware in the pdf attached. hyperworks_2018_hardware_recommendations_and_certifications.pdf
  22. Rahul Ponginan

    License error

    Since the license is based on the wifi ID, the wifi must be turned on when you start the application , is this done? Please note that the student edition license will only activate the student version of the software that must be downloaded and installed from the links in the license mail also pfa, If you have installed the student version of our software from the links in the mail, then please tell us which application you are trying to start here
  23. Rahul Ponginan

    License Usage

    Additional options for almutil include several reporting features as well as interacting with the Hosted HyperWorks Units (HHWU) system. In order to provide both familiar and more useful status data the following option was added to almutil: -licstat[-host -port -feature -user -inuse -collapse] Display license statistics, by default list everything Information can be limited with optional arguments Multiple -feature and -user can be specified -inuse will limit output to features with usage -inuse may not be used with -feature and -user options -collapse will collapse shared checkouts into one entry For additional information you can run almutil -–help Altair now provides a graphical version of almutil. It provides all the functionality of almutil along with additional views of license usages, etc.
  24. Hi guys, I have simulated a stammping process of a blank and now I want to do a crash test simulation with it, how can I export the Radioss results(with thickness, residual stresses, etc.) to open in HyperCrash or Hypermesh. Thanks a lot.
  25. Rahul Ponginan

    How do I apply the new license to FEKO?

    HI, We see that you have ordered the Altair student edition and this was delivered to you, The software requires a license file to function, You should find the license file attached to the email After downloading the license file, rename it to altair_lic.dat and place the same in the <installation directory>/security folder If you have set an environment variable, then the older license will be used, make sure the variable points to the new license file in that case, it is suggested you remove any Altair variable if you have set it, If you have already done the above and still face the error, let us know and we will troubleshoot accordingly.