Ansys Acoustics analysis of simple speaker(Script)

[@sonicedge4393]

Nice tutorial! Helped me a lot in my college assignment.

[@andrewthomas5798]

Thank you, this was very useful!

[@jazminfreire4625]

Excuse me, where do I find the materials that you added to it?

[@jonghaklee]

what material? excel file? drive.google.com/drive/folders/1YE1NJmaMobNYVkq5Qj3sNP0yxCJxhr94

[@zhixianzhang4987]

@@jonghaklee Thank you for sharing the extra files! However, can you please share the .xml file that is imported at 7:58? I didn't find it in the google drive folder. Thank you!

[@lenovoktm3908]

Where can i get PEN file

[@umapornchanthima847]

I tried to follow but can't find Material name PEN, can you help me please ?

[@jonghak.lee_simulation]

Sorry, the property is various. Refer to the manufacturer's datasheet.

[@nadiaakter9351]

How can we be pro like you bro?

[@jonghak.lee_simulation]

Just do any examples.

[@Jignesh-cv2vz]

Hii, I could not find engineering material library ....can someone tell hoe can I download it ..pls

[@jonghak.lee_simulation]

Searching Google or Paper

[@larstofastrud1788]

Why use the A-weighted microphone? It should ONLY be used to describe noise issues below a certain dB threshold. Until I see a full analysis of a two-way loudspeaker system, based on existing drivers (and their measured data), these models are pretty useless IMO.

[@jonghak.lee_simulation]

You are right. :) I have a habit of using the A-weighted SPL result, sorry about the confusion. For a two-way speaker system, actually need a three-way simulation(magnetic force+structural vibration+acoustics) but the acoustic impedance not important if you SPL measuring in a non-reflect room. It is important the magnetic force+structural vibration more than the structural vibration+acoustics. However, in the mag-struc. 2way, it is difficult considering the electromagnetic impedance and vibration damping effect of structure. Anyway, the 2way method of struc.+acoustics is simple. Refer the link -> kzbin.info/www/bejne/fmXbpoGYfpuskMk

[@xuncai4399]

Sir, Can you change the subtitles in English?

[@dhruvindarji5795]

Sir could you please make one video on How to read Results? Diffrence of far field result with near field, acoustic pressure, sound pressure, etc. I'm intreasted for Capacitive micromachined ultrasonic transducer's simulation,

[@jonghak.lee_simulation]

You have to understand the 1-way FSI(Fluid-Structure Interaction) method. The result imported into the Acoustics Harmonic system is just the velocity of structure exterior surfaces. That is the sound source to generate sound pressure. The sound pressure is to calculate P=Vn*ρ*c/2 where Vn is the normal velocity of the vibrating structure's surface, ρ is the density of acoustic media, c is wave speed of acoustic media. After generated sound pressure around the field of structure, verify the acoustic result quantities(near or far filed pressure, etc.).

[@dhruvindarji5795]

@@jonghak.lee_simulation hell sir, could you please give me your email Id? I want to send you my file related to prestressed harmonic analysis. Could you please check in it whether my harmonic load is correct or not?

[@jonghak.lee_simulation]

@@dhruvindarji5795 Sorry, I could not fix it. You can contact to supplier company in your place. Good luck.

[@dhruvindarji5795]

@@jonghak.lee_simulation ok no problem sir.

[@dhruvindarji5795]

@@jonghak.lee_simulation Could you please suggest me book related to this?

[@adityaprakash619]

Sir, please make a video on finding sound absorption coefficient of porous material using ANSYS Please sir ,

[@jonghak.lee_simulation]

Sorry, I could not help you because the absorption coefficient is the input value in the simulation. If possible get the coefficient, I need the information of porous material properties. The acoustic ACT has a muffler example using the porous material and then get the transmission loss(absorption factor on the acoustic domain). Good luck.

[@ianokumu8159]

Hi Sir, Kindly send me your email ID so i can send you my file and see what is wrong. I cannot apply any acoustic load (as the Mass Source), while the Surface Body is correctly recognized.