Raja Kumar

6 Questions 6 Answers 0 Followers

Questions related from Raja Kumar

How to remove the acoustic damping during room mode calculations in COMSOL?

As the eigen room modes of a room are complex. So How to remove the complex eigen modes? Is there a way to remove the acoustic damping by air in SOLVER SETTING? #COMSOL #ROOM ACOUSTIC

21 July 2023 1,353 3 View

How to impact hammer simulation in COMSOL?

What is the appropriate study, either time domain or frequency domain, for simulating the impact hammer test in COMSOL? Furthermore, how can I generate and apply a hammer hit to the desired...

11 July 2023 3,197 2 View

What Physics one should take in COMSOL for SOUND TRANSMISSION LOSS of membrane with the added mass?

I have taken 1) pressure acoustics, 2) membrane, and 3) solid mechanics. I have used three multiphysics 1) membrane and solid mechanics for membrane and added mass interaction, 2) acoustic...

10 July 2023 2,319 0 View

Sound absorption coefficient of membrane backed with air cavity?

I am trying to learn the membrane backed by air cavity in the following paper, figure 2. My code result does not match the paper result. can somebody point out the error? I Have used equation no...

17 January 2023 8,257 3 View

Please recommend 1.Books 2.Tutorial 3.Links which explains optimization using the least square method with MATLAB code ?

Please recommend 1.Books 2.Tutorial 3.Links which explains optimization using the least square method with MATLAB code

01 June 2020 2,141 3 View

How to integrate a mathematical function from -inf to inf in MATLAB?

To integrate a mathematical function from -inf to inf in MATLAB, I am using from trapz but i am finding it difficult as the variable like d(X), X has to be like ( -1000,1000,2000), but since i...

30 December 2019 8,108 3 View