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I've been following the ADM743 FSAE tutorial and while completing WORKSHOP2/Part2 (Simulating a Full Vehicle Assembly). I get an error in the message window stating the model isn’t defined? So where and when do I need to define the model?

I've been following the ADM743 FSAE tutorial and while completing WORKSHOP2/Part2 (Simulating a Full Vehicle Assembly). I get an error in the message window stating the model isn’t defined? So where and when do I need to define the model?
  • Hi Alexis,
     
    I've check the usage and it 'looks' ok, other than an extra line in the ASSEMBLY_HEADER that tells it not to load all SUBSYSTEM?
     
    Also, I have noticed that the 2018 assemblies don't have a fsae_full_vehicle.asq file? The 2016 screen shot you sent does and the 2012 version does too. Why would this be?
     
    Could one of these be the issue?
     
    Woz
  • Hi Woz,
    don't worry about the asq file that is not the issue.
    What I would do in your case is to ask the person (or the MSC.Software representative in your area) who gave you the database and overwrite your current one with it.
    Otherwise (and this is the long way around) try loading the vehicle in Adams and paste the screenshot of what Adams writes such:
    tutorial model loading
    Thanks,
     
    Alexis
  • Hi Alexis, can you tell who is "(or the MSC.Software representative in your area)" or point me to the resource that will tell me? I tried to call the regional contact but was just directed to complete an online support request for which my account is not authorised?
     
    I can load up the 2018 fase_front_suspension assembly perfectly. It looks like this doesn't use a tire model, but just a graphical representation of a tire. This, to me, based on everything else so far points to some sort of error in either the tire model (when loading the full vehicle), or some kind of file corruption, which you have already alluded to.
     
    Would it be possible to put the 2016 fsae database in the download section or another area that I can get access to, as you report this as working fine, but not either of the databases I have access to?
     
    Many thanks.
     
    Woz
  • Hi Woz,
    I have contacted one of our guys in Australia to find out who can support you there. You can also talk to your Lecturer and ask for the same.
    Thanks
  • Hello Woz
     
    I think I know what is happening. Do you still see the error with SAMPLE_PERIOD? Could you please try this:
     
    1. Save your current powertrain Template in ASCII format
    2. Use this template to create your powertrain subsystem
    3. Then try simulating the model
     
    The updated FSAE_2018 database with the above changes has been added to following article:
     
     
    Please test with this and let us know if you the problem persists.
     
    Does this help solve the problem?
     
    Regards,
    Rishi
  • Hi Rishi, can you confirm what you mean by saving the powertrain template as ASCII format? Do you mean the \acar\fsae_2018.cdb\powertrains.tbl\600cc_engine_map.pwr?
     
    Is this format already changed in the new fsae_2018.cdb download? If so I've just tried to load the full vehicle assembly and have the same issue? It seem like the files are being converted from 2018.0 version to 2018.1 and then from 2018.1 to 2019.0. This final conversion step seems to be the issue and throws up the warningL
     
    "cannot find mdids://fsae_2017/tires.tbl/fsae_tire_front.tir!"
     
    I'm not sure whay its looking for the 2017 tire.tbl in the first place??
     
    Do I need to be in the template builder mode to do the above?
     
    Thanks.
     
    Woz
  • Hi Woz
     
    I think I got this. The tire template in FSAE_2018 database points to adams 2017 FSAE tire location. So this results in error when opening the model since it tries to find the tire file in a database which is not there.
     
    Please use the attached updated database for FSAE_2018 where I have made this change. Please remove the earlier database of fsae_2018 and add the one I have attached here.
     
    Please test using this database. Try and open the assembly and simulate this.
     
    We would also update this on the website article.
     
    Regards,
    Rishi
     
     

    Attached Files (1)
  • Hi Rishi,
     
    Some progress as I now have a different fault (warning(s)), but not the 2017 issue!
     
    fsae_2018_full_vehicle_load_warnings_tire_13AUG2019
    fsae_2018_full_vehicle_load_warnings_asy_13AUG2019
    fsae_2018_full_vehicle_load_warnings_13AUG2019
    This is an improvement from where I started!
     
    Thanks for your efforts so far.
     
    Woz
  • Hi Woz,
     
    There are two things I would recommend:
     
     1.  Please try and place this database on any other drive D:/.... You have placed this under C:/program files/.... I suspect that you do not have enough read or write permissions. Could you please place or copy this fsae_2018.cdb to another location on another drive for example D drive.
     
     Note: Please make sure that you first remove the database from your session. Then copy the cdb to another drive and then add it again.
     
    2. I am attaching another version of this database which should take care of version compatibility problem with this database. Please use this for your testing.
     
    The attached database should help solve the problem. Please copy this to another drive and test.
     
    In case if the problem persists, please let me know your email address and university contact details, we can have a short webex to take a look at this problem.
     
    Regards,
    Rishi

    Attached Files (1)
  • Hi Rishi,
     
    SUCCESS!!!! I've still got the database on the C:/ drive (I have admin rights on this machine), so decided to run your latest version and it loaded perfectly. I'll run some simulations now and ensure everything continues to perform as expected.
     
    Thanks for both your and Alexis' help with this issue. Very much appreciated.
     
    Woz