Question about OS-E 0335

Mark Lin

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?    

 

Rajiv

@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