Model Calibaration Validation

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A
Hallo Group

I am new to NVH simulation.

I have a component tested for vibration.  the test involved measuring Frequency response function Mobility FRF on 6 points on the modell. So I have plots of FRF values at Six points on the modell. Using this I want to calibrate My FEM model (with optistruct/hyperstudy). What are techniques to callibrate such modell. I have come across Modal assurance criterion (MAC) and Model updating technique. can you enlighten me about such method. Do Altair has inbuilt software providing such capabilities.

Thanks and Regards
Pratik
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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited June 2015

    Hi Pratik,

     

    Using Hyperview,we compute Modal Assurance Criteria of experimental mode. 

    Starting from Hyperworks 13.0 version we have implemented many capability to the existing MAC utility and is now complete.

    Attached document should help you in explaining the usage of this utility in detail.

     

    Regards

    Rahul R

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2015

    Hi Rahul

     

    Does Hyperwork also provide tool for correlation with Frequency Response  Assurance Criterion (FRAC) or Frequency Domain Assurance criterion (FDAC)

     

    Regards

    Pratik

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited June 2015

    Hi,

    Currently we support model correlation in HV using MAC. Once it is available or any plan we hear about development we will let you know.

    Regards

    Rahul R

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2015

    HI

     

    I dont find NVH ulitilty menu in my hyperview 13

    <?xml version="1.0" encoding="UTF-8"?>post-36734-0-21605700-1434112538_thumb.j

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited June 2015

    Hi,

    To use the HyperView NVH utilities, you must first load the NVH preferences file:

    1.From the File menu, select Load > Preference File. The Preferences dialog is displayed.

    2.From the Preferences dialog, select NVH-Utilities and click Load. The NVH menu is added and displayed on the menu bar.

    nvh_grid_part_preferences_dialog

    See attached thumbnail for reference.

    Regards

    Rahul R

    <?xml version="1.0" encoding="UTF-8"?>post-36845-0-94414200-1434349198_thumb.j

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2015

    Thank you Rahul

     

    I have difficulty understanding the user guide.

     

    what file are expected under

     

    Referance file and corelation file under MAC- tab. (Load)

     

    According to my understanding

    Referance file is the file containing my FRF values from experimental test at particular point, it can be odb or CSV.

    Correlation file is my hd3 filr from FEM simulation that i want to co relate

     

    so what does transformation is used for?

  • durukanbdilek
    durukanbdilek Altair Community Member
    edited July 2017

    hello, how to perform model calibration and updating in hyperworks NVH 

  • durukanbdilek
    durukanbdilek Altair Community Member
    edited July 2017
    Altair Forum User said:

    Hi Pratik,

     

     

     

     

    Using Hyperview,we compute Modal Assurance Criteria of experimental mode. 

     

     

    Starting from Hyperworks 13.0 version we have implemented many capability to the existing MAC utility and is now complete.

     

     

    Attached document should help you in explaining the usage of this utility in detail.

     

     

     

     

     

    Regards

     

     

    Rahul R

     

     

     

    I cannot find NVH menu, near the application menu how to appear it

    Unable to find an attachment - read this blog

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