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Fabian Heisterkamp
Determining reliable noise emission values for machinery is key to successfully implement the Sell and Buy Quiet concept. ISO 11202 is a basic noise emission standard to determine the emission sound pressure level of machines outside of special acoustic ...
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Marc Zarnekow, Thomas Grätsch and Frank Ihlenburg
This paper proposes an efficient hybrid analytical-computational approach for the simulation of mechanical vibrations and sound radiation in wind turbine drive trains.The computational procedure encompasses the detailed modeling of vibrational sources an...
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Miroslav Dado, Marián Schwarz, Jozef Salva, Richard Jankovic and Richard Hnilica
The hand-held power sander is a frequently used tool in woodworking, and it is a significant source of risk in terms of dust, vibration, and, notably, noise. The purpose of a hand-held power sander manufacturer?s noise emission statement is to provide in...
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Kai Cussen, Simone Garruccio and John Kennedy
Noise emission will be a significant obstacle to the widespread uptake of unmanned aerial vehicles or UAVs. The assessment and mitigation of UAV noise will require validated modelling approaches. The European Union has recently mandated an UAV sound powe...
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Marcin Honkisz , Justyna Sordyl
Pág. 107 - 118
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Alberto Carpinteri, Giuseppe Lacidogna and Federico Accornero
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Stefano Bianchi, Alessandro Corsini, Anthony Geoffrey Sheard
Pág. 45 - 62
This paper describes an experimental investigation of the interaction noise in a jet impacting isolated aerofoils. The authors conducted the study in a low-speed wind tunnel ending in an anechoic chamber, and focussed on the tip region of two types of is...
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Manfred Haider, Marco Conter, Martin Green, Bjarne Schmidt, Ulf Sandberg
Pág. 2946 - 2955
ROSANNE is a collaborative project in the Seventh EU Framework Programme which aims at developing/harmonising measurement methods for skid resistance, noise emission and rolling resistance of road pavements as a preparation for standardization. To achiev...
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Frieder Lörcher, Sandra Hub, Marlène Sanjosé and Stéphane Moreau
For a backward curved centrifugal fan, reducing volume flow rate from design operating point towards part load yields an increase in noise emission together with a reduction of efficiency. The spectral content of the emerging noise emission can be charac...
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Ireneusz Kubiak and Artur Przybysz
The electromagnetic protection of IT devices includes a number of organizational and technical measures aimed at ensuring control over radiated and conducted revealing emissions. This is of particular importance for ensuring information security in wirel...
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Bartosz Sawik, Javier Faulin, Elena Pérez-Bernabeu
Pág. 61 - 68
This research concerns multi-criteria vehicle routing problems. Mathematical models are formulated with mixed-integer programming. We consider maximization of capacity of truck vs. minimization of utilization of fuel, carbon emission and production of no...
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Gergely I. Novotni and Viktor Józsa
Swirl burners are widely used in numerous practical applications since they are characterized by low pollutant emission and a wide operating range. Besides reliable operation, a burner must fulfill noise emission regulations, which is often a sound press...
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Silvia Maláková, Michal Pu?kár, Peter Frankovský, Samuel Sivák, Maro? Palko and Miroslav Palko
Emission is one of the key problems in the automotive industry, which engineers try to eliminate by lowering emissions to the minimum. Transmission emission plays an important part here. The basic characteristics of gears include their shape, load capaci...
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Alexander Lange, Ronghua Xu, Max Kaeding, Steffen Marx and Joern Ostermann
Regular inspections of important civil infrastructures are mandatory to ensure structural safety and reliability. Until today, these inspections are primarily conducted manually, which has several deficiencies. In context of prestressed concrete structur...
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Guangming Li, Zhen Zhao, Yaohan Li, Chun-Yin Li and Chi-Chung Lee
Bridges, especially cable-stayed bridges, play an important role in modern transportation systems. The safety status of bridge cables, as an important component of cable-stayed bridges, determines the health status of the entire bridge. As a non-destruct...
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Martin Czuka, Marie Agnès Pallas, Phil Morgan, Marco Conter
Pág. 2678 - 2687
With the advent of electric vehicles and their significant lower propulsion noise emission it is possible to assess the tyre-road noise trough cruise-by measurements with an increased accuracy, even at speeds where a combustion engine propulsion system w...
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Nikoleta Vitsi, Argyris N. Stassinakis, Nikolaos A. Androutsos, George D. Roumelas, George K. Varotsos, Konstantinos Aidinis and Hector E. Nistazakis
Visible light positioning systems (VLP) have attracted significant commercial and research interest because of the many advantages they possess over other applications such as radio frequency (RF) positioning systems. In this work, an experimental config...
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Christopher Teruna, Leandro Rego, Damiano Casalino, Daniele Ragni and Francesco Avallone
This manuscript presents the application of a recently developed noise reduction technology, constituted by poro-serrated stator blades on a full-scale aircraft model, in order to reduce rotor-stator interaction noise in the fan stage. This study was car...
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Yue Kong, Weimin Chen, Ning Liu, Boqi Kang and Min Li
The knowledge of cracking mechanisms is significant for evaluating the healthy condition of aircraft structures and can be retrieved by moment tensor inversion based on the acoustic emission (AE) phenomenon. For engineering applications, the inversion me...
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Gil Felix Greco, Bekir Yildiz, Jan Göing, Tobias P. Ring, Thomas Feuerle, Peter Hecker and Sabine C. Langer
Computational models of sufficient quality are indispensable to quantitatively assess aircraft noise reduction measures. Within this study, a multi-level simulation framework is established in order to predict the environmental noise of holding approach ...
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