Results 21 to 30 of about 1,539,014 (284)
International Journal of Automotive Engineering, 2012 This study investigates the characteristics of combustion noise generation in a diesel engine under running condition using wavelet transformation and transient combustion-noise-generation model. The results show that combustion noise largely contributed
Nguyen uan Anh +2 more
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Energies, 2022 Nowadays, the noise pollution of internal combustion engines is a very important factor influencing human health and is the main noise source of urban environmental noise.
Zhenbin Chen +4 more
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Bulletin of JSME, 1974 In this study, an attempt was made to separate the combustion noise and the mechanical noise from the engine noise by estimating the transfer coefficient between the cylinder pressure spectrum and sound pressure spectrum of noise in a four-stroke diesel engine.
MURAYAMA, Tadashi +2 more
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Shock and Vibration, 2018 Internal combustion engine noise sources are complex and changeable. Combustion noise is usually drowned out by mechanical noise and aerodynamic noise. Traditional noise source identification methods can only qualitatively identify combustion noise.
Yang Xiang +4 more
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Aircraft Noise Assessment—From Single Components to Large Scenarios
Energies, 2018 The strategic European paper “Flightpath 2050” claims dramatic reductions of noise for aviation transport scenarios in 2050: “...The perceived noise emission of flying aircraft is reduced by 65%.
Jan Delfs +6 more
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Quantum circuit engineering for correcting coherent noise [PDF]
Physical Review A, 2022 How to correct quantum errors without encoding and parity checks? what forms of real-life quantum noise can actually be reversed on the run-time? and how can we engineer more noise-robust quantum circuits? learn more on these new findings in this PRA research article.
Muhammad Ahsan +2 more
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The acoustics of racing engine intake systems [PDF]
, 2004 Naturally aspirated racing engines have tuned intake systems and can now achieve volumetric efficiencies in excess of 125% and peak engine speeds in excess of 18,000 rev/min.
Harrison, M. F., Dunkley, A.
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AIP Advances, 2022 In order to analyze the sharpness of combustion noise of the gasoline direct injection (GDI) engine, the in-cylinder pressure and noise of different loads and speeds of a three-cylinder GDI engine are measured.
Kang Zheng +4 more
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Simplification of sound-pressure characteristics using narrow flow channels subject with temperature gradient [PDF]
MATEC Web of Conferences, 2018 A thermoacoustic engine is one of promising system for utilization of unused energy. The object of this paper is to study the system of unused energy, such as heat energy and sound energy in noise using thermoacoustic engine. The thermoacoustic engine is
Kyoden Tomoaki
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Mechanical Engineering Journal, 2014 As the small-sized high speed diesel engine used for construction machinery and generator is operated under continuous heavy load condition, a gear train is employed to drive the fuel injection pump and valve train.
Kazuhide OHTA +2 more
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