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Simulating enclosure forces
Simulating enclosure forces
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Old 13th March 2018, 03:27 PM   #1
CCU is offline CCU  Denmark
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Default Simulating enclosure forces

Hi everyone

Im currently fooling around with Solidworks making some simulations of subwoofer enclosures to see what different types of bracing do. Both to see what kind of bracing is worth the effort to build and what kind doesnt take up to much space.

The static forces of the speaker unit is easy to simulate. But does anyone have a good idea about how to simulate the effects of standing waves inside the enclosure? For example. If i take the same bracing and tilt it 10 degrees.

But one thing that is already really clear. Is that a simple bracing contacting both the front and sides have a really big effect compared to doubling the wall thickness

Any input would be greatly appreciated
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Old 13th March 2018, 04:03 PM   #2
Scott L is offline Scott L  United States
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Simulating enclosure forces
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Originally Posted by CCU View Post
Hi everyone

Im currently fooling around with Solidworks making some simulations of subwoofer enclosures to see what different types of bracing do. Both to see what kind of bracing is worth the effort to build and what kind doesnt take up to much space.

The static forces of the speaker unit is easy to simulate. But does anyone have a good idea about how to simulate the effects of standing waves inside the enclosure? For example. If i take the same bracing and tilt it 10 degrees.

But one thing that is already really clear. Is that a simple bracing contacting both the front and sides have a really big effect compared to doubling the wall thickness

Any input would be greatly appreciated
Generally speaking, the wavelengths involved with "subwoofers" are so large as compared to the enclosure dimensions, that standing waves are never set up. Vibrations are the enemy of an enclosure type like that. Vibrations that are both set up by the driver, and by the pressures built up within. Having stated that, the dimension to pay attention to, is the depth. As it approaches 1/4 wavelength, a resonance *could* be set up. It depends on the crossover frequency versus the dimension, and also the slope of said crossover.
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