engine noise

[c._mauro]

I wanted to know, even in large lines, if someone had done research or found material on the internet to limit the noise of an electric motor (motor connected to a fan in turn connected to a filter).

I stayed on the vague, but if they needed various details I can, tomorrow, take them (we are testing one for a new machine during testing).

Of course, thanks to anyone who wants to help me.
Mauro.

 

[gerod]

in what sense materials?
and by noise what do you mean? there are various parameters to measure noise.

always remaining on the vague, do you mean the fan to the motor shaft for cooling? and the filter?

He would have liked to understand what machine it is. Maybe he's a fan? !

 

[Sasso SP]

I wanted to know, even in large lines, if someone had done research or found material on the internet to limit the noise of an electric motor (motor connected to a fan in turn connected to a filter).

I stayed on the vague, but if they needed various details I can, tomorrow, take them (we are testing one for a new machine during testing).

Of course, thanks to anyone who wants to help me.
Mauro.

if I'm limited to speaking about an extractor to clean the air from the smell (I'm a big hypotizer), and I don't understand if you have to intervene on the engine. or limit sound diffusion (acoustic insulation).
Hi.

 

[Windows_Expert]

Hi.

engine noise is tied to the rotation speed of the rotor.

Usually, if you raise speed, noise decreases.

I realize that it is often not possible to intervene on speed. In this case, you can cover the engine with a coat of sound-absorbent material.

This material has a lack of heat and so the engine temperature can rise... measure it with a 10 euro meter and verify that the value complies with the specifications.

Hi.

 

[MBT]

Usually, if you raise speed, noise decreases.

I'd say it's the opposite. .
I doubt that a 5,000-round trotterella bearing makes less noise than one walking 500.. .
If you feel less it can be because you fall into frequencies that are not audible, but with an ear that feels up to 16,000 hz it seems to me to be limit cases.

 

[Windows_Expert]

I'd say it's the opposite. .
I doubt that a 5,000-round trotterella bearing makes less noise than one walking 500.. .
If you feel less it can be because you fall into frequencies that are not audible, but with an ear that feels up to 16,000 hz it seems to me to be limit cases.

I have experience of step-by-step engines, so I may have written something incorrect, as you pointed out.

in step-by-step engines, there is a speed field that minimizes noise.

a few years ago, I wrote a step-by-step management software, and I noticed that increasing the speed of noise decreased.

Hi.

 

[MBT]

I have experience of step-by-step engines, so I may have written something incorrect, as you pointed out.

in step-by-step engines, there is a speed field that minimizes noise.

a few years ago, I wrote a step-by-step management software, and I noticed that increasing the speed of noise decreased.

Hi.

in those step-by-step actually noise varies according to other parameters. :finger:

 

[myface]

in those step-by-step actually noise varies according to other parameters. :finger:

Someone must write it. . step and close!!:biggrin:

 

[MBT]

Someone must write it. . step and close!!:biggrin:

Pensavo. .However, if you have to connect us with a dubious fan using a step-by-step

 

[MBT]

Anyway, to be on the subject. . .
in a motor-wind system is not said that the noise comes from the motor
indeed, I would say that much of the generated noise comes from the fan
One thing to control is that the fan blades are in odd numbers, better if first
other notice is to make sure that the passages between the fans are not constant.
if possible, use larger fans and turn them at fewer turns...

 

[myface]

Anyway, to be on the subject. . .
in a motor-wind system is not said that the noise comes from the motor
indeed, I would say that much of the generated noise comes from the fan
One thing to control is that the fan blades are in odd numbers, better if first
other notice is to make sure that the passages between the fans are not constant.
if possible, use larger fans and turn them at fewer turns...

are interesting observations. . bypassing the topic there are also all the latest trends regarding air handling, especially what we end up breathing.

you are finally realize that the air is very "sensitive" and must be treated with extreme "gentileness". .:smile:

 

[mtbnicola]

Hi.

engine noise is tied to the rotation speed of the rotor.

Usually, if you raise speed, noise decreases.

I realize that it is often not possible to intervene on speed. In this case, you can cover the engine with a coat of sound-absorbent material.

This material has a lack of heat and so the engine temperature can rise... measure it with a 10 euro meter and verify that the value complies with the specifications.

Hi.

I agree, if you have no problem with overheating, you can use good sound-absorbent material and maybe feet/staffe antivibranti

 

[c._mauro]

to have been a lot about the generas you have given me more than I did not expect, many interesting ideas many ideas that can actually be effective.

the idea of sound-absorbing material together with antivibrating feet and shortenings on the fan (which I will look after tomorrow) should solve since at first we were rather crude.

when and if we start a second phase of testing with various devices I will let you know how it goes, in the meantime thanks to all.

 

[Exatem]

If you are looking here:http://www.nauticexpo.it/cat/cantie...li-d-isolamento-acustici-termici-ga-1180.htmlyou will find an infinity of sound products.