Noise and Vibration Control at Source
We have been extremely successful at applying engineering experience, intuition and technology transfer across industries to develop optimum solutions to product noise and vibration problems.
Art
For experienced engineers, solving noise and vibration problems is as much an art as a science - both are available from us to help with your product development.
Innovation
Our reputation for successful innovation is illustrated by the range of novel and elegant engineering solutions contained in our case studies.
Commercial Benefits
Would you gain a commercial advantage not only if your products were substantially quieter and smoother but also if the control measures used cost a fraction of those in competing units? In many cases, incorporating our technology has substantially increased the profit margins on the product.
Sample Project Areas:
- air conditioning - axles - office products - pneumatic nozzles - trains - compressors - power presses - weighing machines - steering columns - vibratory filters - white goods - pneumatic tools - woodworking machines - fans - wrapping machines - vacuum cleaners - vacuum pumps - ships and yachts .........
Vax Vacuum Cleaner
 
During the re-design exercise for a new model, the noise from this vacuum cleaner was not only reduced by a factor of 10 (10dB(A)), but the subjective character of the noise was also substantially changed by eliminating tonal components to make it sound "nicer" (a specialist technical term in acoustics!). This also had the side effect of making the vacuum cleaner sound more powerful....
Click icon to hear the noise reduction
Quiet Compressor Development
As part of a continuous product development programme to maintain their world - leading reputation, CompAir asked us whether it would be feasible to re-design the noise control package on one of their compressors. The initial target was to remove the existing silencer element to reduce the overall size of the unit - without any increase in noise or a reduction in the performance of the cooling system. Source control modifications were developed for the cooling system which significantly reduced the overall noise from this element at source and also dramatically cut the tonal content (less “nuisance”). Coupled with modest flow and geometry changes, the new package reduced the overall “headline” noise from the compressor by 2 - 3dB(A), despite removing the standard silencer - and all without any cost or performance implications.
 Vibratory Separators
Engineering source control techniques have been developed for separators and filters that reduce the noise by 5-12dB(A) at very low cost and without compromising hygiene.
Cigarette Making Machine
An engineering noise control kit was developed for this Molins making machine. It reduced the noise by 4dB(A) at very low cost and without affecting normal access or operation. It was licensed by the manufacturer to provide a profitable retro-fit or overhaul option service. This illustrates the commercial opportunities inherent in the engineering noise & vibration control technology in which we specialise.
Cooling Down - HVAC
There is enormous competitive pressure on suppliers to develop quieter A/C and chiller plant. We've recently applied our engineering skills to reduce the noise from a new range of A/C units. As a result, they can now quote sound power levels that are at least 4dB(A) lower than before, at, quite literally, no additional cost to the units at all. This has provided the company with a significant commercial advantage and illustrates the benefits of introducing engineering noise control techniques during the development of new products. Quoting the project manager ".. is the unit actually running?! .. That's an amazing result over such a short timescale".
Hi-Fidelity Engineering
 We were asked to look at improving the acoustic design of Custom Design speaker stands for up-market Hi-Fi aficionados. As a result of vibration testing on the stands, we recommended replacing the top and bottom plates with laminated "dead-metal" versions. These reduced the vibration response of the stands by up to 40dB (a factor of x100). According to the review in Hi-Fi Choice " .. switch to the Acoustic Steel plates and the sound is even bbetter, with a deeper, quicker base and a more open mid-band. There's definitely a neutralising effect with the acoustic steel that zaps a lot of colouration, giving a far more neutral sound ... Top value upgrade .. 5 stars."
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Direct Links
noise control audit - digital noise assessment - noise competency training - noise training - product noise control - fan noise control - VWF (Vibration White Finger) - Hand-Arm Vibration (HAV) assessment - HAV competency training - HAV database (HAV-Base) - Whole Body Vibration (WBV) measurement - environmental noise control - noise nuisance - environmental noise monitoring - production line testing (noise and vibration) - noise nuisance / annoyance recorders - frequency analyser and noise analyser software
Industrial Noise & Vibration Centre
889 Plymouth Road, Slough Berks SL1 4LP
Tel: 01753 698800 Fax: 01753 567 988
email:consult@invc.co.uk |
