Question about OS-E 0335

Mark Lin
Mark Lin Altair Community Member
edited October 2020 in Community Q&A

Hi all

I have a little question about acoustic tutorial ( OS-E: 0335 Measure Sound Radiation from Impacting Plates )

In final of the tutorial I get two set of sound pressure.

I am confused about those data are Structure-borne noise or Air-borne noise or BOTH.

I guess it is only Structure-borne noise, if that's the case, how to calculate Air-borne noise?    

 

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Answers

  • Rajiv Venkatasubramanian_22139
    Rajiv Venkatasubramanian_22139
    Altair Employee
    edited October 2020

    @Mark Lin 

    In the case of this example, the noise is generated by the impact between 2 plates, and this noise is transmitted through the structure into the surrounding fluid. Such a process of sound generation/transmission is generally termed in the industry as "structure-borne" noise/sound, since the noise is generated within the structure and transmitted by the structure, and eventually radiated out into the surrounding fluid (air). 

    So the two plots you see in this example are measuring "structure-borne" sound at the mic locations, based on the industry terminology.

    Please feel free to reach out if you have further questions. 

    Regards,
    Rajiv

  • Mark Lin
    Mark Lin Altair Community Member
    edited October 2020
    Rajiv Venkatasubramanian_22139 said:

    @Mark Lin 

    In the case of this example, the noise is generated by the impact between 2 plates, and this noise is transmitted through the structure into the surrounding fluid. Such a process of sound generation/transmission is generally termed in the industry as "structure-borne" noise/sound, since the noise is generated within the structure and transmitted by the structure, and eventually radiated out into the surrounding fluid (air). 

    So the two plots you see in this example are measuring "structure-borne" sound at the mic locations, based on the industry terminology.

    Please feel free to reach out if you have further questions. 

    Regards,
    Rajiv

    Hi Rajiv 

    Thank you for your reply

    I understand the result is sound pressure of structure borne noise

    Then, is there any solution for airborne noise?

    Such as the case or throw a bottle into a trash can.

    If I can only calculate the structure-borne noise or not ? 

     

    Regards, 

    Mark

     

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