Random Analysis

Luca Campello
Luca Campello Altair Community Member
edited May 2023 in Community Q&A

Good Morning 

I have a problem with a Random Analysis. My model is in meter, i want to apply a FRF of 9,81 m/^2, which unit measure should I use for PSD 

g^2/Hz or (m/s^2)^2/Hz? I am confused

Thank you in advance for the answer

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Answers

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited May 2023

    Maybe this knowledge base will help you.

    https://community.altair.com/community?id=kb_article&sysparm_article=KB0117481

     

    image

  • Luca Campello
    Luca Campello Altair Community Member
    edited May 2023

    thank you Adrian, very kind from you

    But I am looking for some indications where the model is in meter and not in millimeter. All the indications I found, are with the model in millimeter. Do you know someone I could I speak with directly?

     

     

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited May 2023
    Luca Campello said:

    thank you Adrian, very kind from you

    But I am looking for some indications where the model is in meter and not in millimeter. All the indications I found, are with the model in millimeter. Do you know someone I could I speak with directly?

     

     

    unit load 9.81m/s2

    PSD in G2/Hz

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