I am planning to build a single channel dipole subwoofer system that will combine two U-frame subwoofers in a mirror pair (facing each other). I would like to model the far-field response of the system but am not sure what programs could be used to do this without first measuring data, e.g. SPL at front and rear. If I had measurement data I could do the far-field modeling myself. The problem is I want to run some "what-if" modeling scenarios and see what each looks like BEFORE I build. I would like to investigate the relative position and orientation of the two U-frames, as well as the effect of tapering the tunnel to a smaller final opening compared to the driver end. Not sure I can do these thing in e.g. Hornresp or VituixCAD.
If you know of a program that can be used to model multiple independent but identical sources like this, please let me know!
I would also love to collaborate on a design with someone who is knowledgeable in the software or own some commercial software that can do such modeling.
Thanks!
If you know of a program that can be used to model multiple independent but identical sources like this, please let me know!
I would also love to collaborate on a design with someone who is knowledgeable in the software or own some commercial software that can do such modeling.
Thanks!
I've modelled U-frames in ABEC. Its fairly straightforward. My process is to export polars from the ABEC model and import them into Vituix. In Vituix you could instantiate multiples of the ABEC Uframes and do your analysis. I can help you with the ABEC model if you give me a sketch or send you an example to modify.
Thanks for your offer nc535! I am not sure that will cover all the bases - I assume I will have to simulate both at the same time because the "slot" or space between the two U-frames will form a resonant cavity and I would also like to include that in the model. Does your approach capture that aspect of the system?
Thinking about it a little...it will be possible to parameterize each dimension of the Uframe and the spacing between the two Uframes. Hopefully the shape is simple. One defines {x,y,z} as fun(parameters) for each corner and other significant point on the Uframe. This can get out of hand with a complex shape. Then you move to CAD to define the shape....