Noise Level Reduction on Engine

[Hclrag123]

thread238-158737

Hi,
I need to design an Enclosure for the NAKED 75HP Deutz Diesel Engine tha tis used on a mobile equipment.

The requirement is
1. To cover the Engine to look nice.
2. To reduce the Noise level from 110DB to 80 BD.

HOw do i reduce the Noise of the Engine?

I am planning to use a 14Ga Steel Sheet to create the enclosure.
Please let me know if i am right. If you have any better ideas please share it with me.

 

[burnt2x]

Noise can be attenuated by using acoustical panels on the enclosing box. Sound absorption and sound transmission loss is the key. The usual materials I saw with our rented mobile silent gensets utilize 18ga GI sheet metal outer skin with 22ga perforated galvanized steel sandwiching fiberglass or mineral wool.

 

[DRWeig]

Check with manufacturer, many of them offer an optional acoustic enclosure. We had a nice one from Caterpillar at my last job.

If you're building your own, burnt2x's suggestion sounds a lot like how ours was made.

Good on ya,

Goober Dave

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[Hclrag123]

Thanks Burnt2x and DRWeig.
Do we have any plastics tha tcan be used for this.
The actual appliaction will be in teh Loactiosn of -40F temperatures.
Do you think PLastic will be good for this?
I am thinking of the weight as well.

How good is the GI sheet option you mentioned for this Temp?