Acoustics. Procedure for the comparison of noise-emission data for machinery and equipment

1997 ◽  
Keyword(s):  
Noise Emission ◽  
Emission Data

Determination of noise emission data of construction sites

2013 ◽  
Author(s):  
Ilya E. Tsukernikov ◽  
Igor L. Shubin ◽  
Nikolay I. Ivanov ◽  
Tatiana O. Nevenchannaya ◽  
Igor A. Nekrasov
Keyword(s):  
Noise Emission ◽  
Construction Sites ◽  
Emission Data

Determination of noise emission data of construction sites

2013 ◽  
Vol 133 (5) ◽  
pp. 3452-3452
Author(s):  
Ilya E. Tsukernikov ◽  
Igor L. Shubin ◽  
Nikolay I. Ivanov ◽  
Tatiana O. Nevenchannaya ◽  
Igor A. Nekrasov
Keyword(s):  
Noise Emission ◽  
Construction Sites ◽  
Emission Data

Lärmminderung an Kistenwaschanlagen

2019 ◽  
Vol 14 (05) ◽  
pp. 146-150
Author(s):  
R. Herzog
Keyword(s):  
Production Equipment ◽  
Low Noise ◽  
Meat Industry ◽  
Noise Emission ◽  
Sound Sources ◽  
Noise Abatement ◽  
Emission Data ◽  
Additional Costs ◽  
Internet Portals ◽  
Operating Instructions

Kistenwaschmaschinen sind in der Lebensmittelindustrie, insbesondere in der Fleischbranche eine der dominanten Schallquellen und mitverantwortlich für das Krankheitsbild der berufsbedingten Lärmschwerhörigkeit (Berufskrankheit Nr. 2301). Entsprechend lärmgeminderte Anlagen werden beim Einkauf zu selten nachgefragt. Hersteller sind nach EG-Maschinenrichtlinie (2006/42/EG) verpflichtet, Schallemissionswerte (sog. Geräuschemissionsangaben) gleichwertig zu sonstigen Leistungsangaben in entsprechenden Verkaufsprospekten, Bedienungsanleitungen als auch auf Internetportalen anzugeben (Tabelle 1). Nur dadurch wird dem Arbeitgeber als Maschinenbetreiber die Möglichkeit gegeben, seiner Pflicht, geräuscharme Produktionsmittel nach dem Stand der Technik einzusetzen, nachzukommen. Die Alternative der nachträglichen Lärmminderung ist zwar möglich, aber immer mit zusätzlichen Kosten und Aufwand verbunden.   Summary Crate washing machines are one of the dominant sound sources in the food industry, especially in the meat industry, and responsible for the clinical picture of occupational noise-induced deafness (occupational disease No. 2301). Accordingly, quiet systems are rarely in demand when shopping. Manufacturers are required by the EC Machinery Directive (2006/42/EC) to specify sound emission values (so-called noise emission data) equivalent to other performance data in corresponding sales prospectuses, operating instructions and on Internet portals (table 1). Only in this way is the employer, as machine operator, given the opportunity to fulfill his duty to use low-noise production equipment according to the state of the art. The alternative of the subsequent noise abatement is possible but partly associated with additional costs and effort.

Communicating airport noise emission data to the general public

2017 ◽  
Vol 586 ◽  
pp. 836-848 ◽  
Author(s):  
Luis Gasco ◽  
Cesar Asensio ◽  
Guillermo de Arcas
Keyword(s):  
General Public ◽  
Noise Emission ◽  
Emission Data

Experimental and Numerical Investigation of Direct and Indirect Combustion Noise Contributions in a Lean Premixed Laboratory Swirled Combustor

2016 ◽  
Author(s):  
Nancy Kings ◽  
Wenjie Tao ◽  
Philippe Scouflaire ◽  
Franck Richecoeur ◽  
Sébastien Ducruix
Keyword(s):  
Numerical Study ◽  
Combustion Noise ◽  
Noise Generation ◽  
Noise Emission ◽  
Emission Data ◽  
Spectral Content ◽  
The Core ◽  
Operation Conditions ◽  
Aero Engines ◽  
Generation Mechanisms

Combustors are contributing to the core noise emission of aero-engines in terms of direct and indirect combustion noise. The first is caused by the unsteady heat release rate, the second by the acceleration of inflow inhomogeneities, such as entropy fluctuations, at the combustor outlet or in the turbine. This work aims to investigate combustion noise generation mechanisms of a choked laboratory scale combustor by a combined experimental and numerical study. Therefore, the temperature fluctuations at the combustor outlet were determined experimentally as well as numerically and cross-checked together with pressure and OH* emission data in the frequency domain. A similar spectral content was found. Furthermore, the acoustic and entropy fluctuations at the combustion chamber outlet were evaluated for different operation conditions to estimate the direct and indirect combustion noise contributions of a laboratory combustor.

Automated Emission Data Registration and Segmentation for IC Analysis

2016 ◽  
Author(s):  
Franco Stellari ◽  
Peilin Song
Keyword(s):  
Data Analysis ◽  
Registration Accuracy ◽  
Emission Data ◽  
Data Registration ◽  
Different Types ◽  
Test Chips

Abstract In this paper, the development of advanced emission data analysis methodologies for IC debugging and characterization is discussed. Techniques for automated layout to emission registration and data segmentations are proposed and demonstrated using both 22 nm and 14 nm SOI test chips. In particular, gate level registration accuracy is leveraged to compare the emission of different types of gates and quickly create variability maps automatically.

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