Wheel Resonance
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Pro
Joined: Jun 2010
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From: Prescott Valley, Arizona
Wheel Resonance
Something I read in another thread about "wheel resonance" and "Heimholtz generators" had me on a search to learn more about how Acura has reduced noise to the passenger compartment. This is great technology. 
Here is a link to a website that explains more about what the Heimholtz generators do.
Anyone have any photographs of what this looks like inside of a RL wheel?
Here is a link to a website that explains more about what the Heimholtz generators do.
Anyone have any photographs of what this looks like inside of a RL wheel?
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Joined: Nov 2001
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From: Cleveland area, OH
I mis-spelled, BTW, it should have been Helmholtz. (L not I)
http://acuranews.com/channels/acura-...ura-rl-chassis
Image from TOV, provided by Honda:
http://acuranews.com/channels/acura-...ura-rl-chassis
Originally Posted by Acura News
To provide excellent handling and improved looks, new 18x8-inch diameter 15-spoke aluminum wheels are matched with performance-minded Michelin Pilot all-season tires. While the new wheels add a look of visual sophistication, they also deliver mechanical sophistication thanks to the first-ever use of resonator wheel technology.
In an effort to quell road noise transmitted to the RL's cabin, the new noise reducing wheel uses a polypropylene Helmholtz resonator that encircles the center portion of the inside of the wheel. Such resonator wheel technology significantly lowers middle frequency noise (between 100 and 500 hertz). Combined with the added use of insulation material on the floorboard areas of the RL, there is a 1.3 dB reduction in interior noise— which translates to a 15-percent improvement.
In an effort to quell road noise transmitted to the RL's cabin, the new noise reducing wheel uses a polypropylene Helmholtz resonator that encircles the center portion of the inside of the wheel. Such resonator wheel technology significantly lowers middle frequency noise (between 100 and 500 hertz). Combined with the added use of insulation material on the floorboard areas of the RL, there is a 1.3 dB reduction in interior noise— which translates to a 15-percent improvement.
Pro
Joined: Dec 2002
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From: Seattle
Does anyone know if those resonator wheels will work for pre-2011 RLs? I looked online and they are the same price as the 2009-2010 wheels, so they aren't charging any more for them. Do you think it will work on an 06?
I'm not too thrilled with the look of those wheels and they look like a nightmare to clean, but if it reduces road noise, maybe it's worth it.
What do you all think?
I'm not too thrilled with the look of those wheels and they look like a nightmare to clean, but if it reduces road noise, maybe it's worth it.
What do you all think?
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Pro
Joined: Jun 2010
Posts: 572
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From: Prescott Valley, Arizona
Do you have to buy the whole rim or can you just buy the resonator? If that were the case, I would buy a set of resonators and have them installed on the car...providing of course the cost wasn't outrageous to buy them.
I looked on line catalog and only saw the rim, but the one with the resonator wasn't listed.
I looked on line catalog and only saw the rim, but the one with the resonator wasn't listed.
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