scholarly journals Theoretical studies on the calculation of the noise of impact equipment in blacksmith shops

2020 ◽  
Vol 164 ◽  
pp. 01030 ◽  
Author(s):  
Elena Staseva ◽  
Dmitry Larin ◽  
Sergei Demchenko ◽  
Kirill Kobzev

Most types of forging equipment relate to impact machines, during the operation of which impulse noise occurs, the levels of which at workplaces, in most cases, exceed the maximum permissible values and relate to those factors, the significance of which in some cases is greater than dustiness, high temperature, manipulation of heated workpieces. Therefore, the problem of reducing vibration and noise in the forge shops is extremely relevant and has great scientific and socio-economic significance. To solve the problem of noise reduction in forge shops, various options for reducing the noise activity of equipment have been developed/ It is possible to most effectively reduce noise by changing the material and shapes of the beds, noise-attenuating casings, oil baths for gears.

2020 ◽  
Vol 164 ◽  
pp. 01026
Author(s):  
Sergei Pushenko ◽  
Evgeny Bozhko ◽  
Irina Zolotuhina

Noise is one of the most unfavorable environmental factors in production facilities, for which it is most difficult to achieve compliance with sanitary standards. Prolonged exposure to intense vibrations and noise leads to noise and vibration diseases. The effect of noise on the human body is not limited to exposure to the organ of hearing. Irritation by noise is transmitted to the central and autonomic nervous systems, through them acts on the internal organs, leading to significant changes in the functional state of the organism. With pulsed and irregular noise, the degree of impact of noise on the body of workers increases. Most types of forging equipment relate to impact machines, during the operation of which impulse noise occurs, the levels of which at workplaces, in most cases, exceed the maximum permissible values and relate to those factors, the significance of which in some cases is greater than dustiness, high temperature, manipulation of heated workpieces. Therefore, the problem of reducing vibration and noise in the forge shops is extremely relevant and has great scientific and socio-economic significance. To solve the problem of noise reduction in forge shops, various options for reducing the noise activity of equipment have been developed/ It is possible to most effectively reduce noise by changing the material and shapes of the beds, noise-attenuating casings, oil baths for gears.


2020 ◽  
Vol 164 ◽  
pp. 01027
Author(s):  
Sergei Pushenko ◽  
Evgeny Bozhko ◽  
Irina Zolotuhina

Noise is one of the most unfavorable environmental factors in production facilities, for which it is most difficult to achieve compliance with sanitary standards. Prolonged exposure to intense vibrations and noise leads to noise and vibration diseases. The effect of noise on the human body is not limited to exposure to the organ of hearing. Irritation by noise is transmitted to the central and autonomic nervous systems, through them acts on the internal organs, leading to significant changes in the functional state of the organism. With pulsed and irregular noise, the degree of impact of noise on the body of workers increases. Most types of forging equipment relate to impact machines, during the operation of which impulse noise occurs, the levels of which at workplaces, in most cases, exceed the maximum permissible values and relate to those factors, the significance of which in some cases is greater than dustiness, high temperature, manipulation of heated workpieces. Therefore, the problem of reducing vibration and noise in the forge shops is extremely relevant and has great scientific and socio-economic significance. To solve the problem of noise reduction in forge shops, various options for reducing the noise activity of equipment have been developed/ It is possible to most effectively reduce noise by changing the material and shapes of the beds, noise-attenuating casings, oil baths for gears.


2010 ◽  
Vol 29 (21) ◽  
pp. 5341-5352 ◽  
Author(s):  
Monika Srebro ◽  
Łukasz Piȩkoś ◽  
Tae-Jin Kim ◽  
Minserk Cheong ◽  
Myung-Ahn Ok ◽  
...  

2011 ◽  
Vol 2 (1) ◽  
pp. 82-92 ◽  
Author(s):  
Geoffrine Judith.M.C ◽  
N Kumarasabapathy

2016 ◽  
Vol 15 (12) ◽  
pp. 7284-7289
Author(s):  
Dr. Jihad N. Abdeljalil Al-Balqa

An improved adaptive noise reduction scheme for images that are highly corrupted by Salt-and-Pepper noise(impulse noise), is proposed in this paper which efficiently removes the salt and pepper noise while preserving the details. The proposed scheme efficiently identifies and reduces salt and pepper noise. The algorithm utilizes an IIR filter with controlled parameters to get better image quality than the existing methods of noise removing. A comparative analysis between the proposed scheme and other techniques of noise reduction or removing is presented in order to show the advantages of the proposed scheme in removing the noisy pixels and producing a better PSNR.


1978 ◽  
Vol 11 (15) ◽  
pp. 3197-3212 ◽  
Author(s):  
C R A Catlow ◽  
J D Comins ◽  
F A Germano ◽  
R T Harley ◽  
W Hayes

2009 ◽  
Vol 126 (4) ◽  
pp. 2218
Author(s):  
William J. Murphy ◽  
Amir Khan ◽  
Edward L. Zechmann

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