Results 11 to 20 of about 63,150 (264)
International Journal of Pressure Vessels and Piping, 2015 Abstract The structural vibration and fluid-borne noise induced by turbulent flow through a 90° piping elbow is studied and the effect of guide vanes in different positions installed at the elbow on the flow-induced vibration and flow-induced noise is investigated.
T. Zhang, Y.O. Zhang, H. Ouyang
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A Tandem Axial-Piston Unit Based Strategy for the Reduction of Noise Sources in Hydraulic Systems
Energies, 2020 This article presents a novel passive fluid borne noise source reduction strategy, based on tandem axial-piston unit indexing with the usage of symmetric lines.
Leandro Danes, Andrea Vacca
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Advanced computational fluid dynamics (CFD)–multi-body simulation (MBS) coupling to assess low-frequency emissions from wind turbines [PDF]
Wind Energy Science, 2018 The low-frequency emissions from a generic 5 MW wind turbine are investigated numerically. In order to regard airborne noise and structure-borne noise simultaneously, a process chain is developed.
L. Klein +4 more
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Acoustics, 2023 The frequency range of the leak noise in buried water pipes, measured using acoustic correlators, depends significantly on the type of pipe and its location as well as the type of sensors used.
Oscar Scussel +6 more
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48V EGR Pump System Development and Fuel Benefit Evaluation
Frontiers in Mechanical Engineering, 2022 Upcoming global emission regulations include considerable reduction in emission of nitrogen oxides (NOx) and greenhouse gases (GHGs) for vehicles with heavy-duty (HD) diesel application.
Nilesh L. Bagal, Divyanshu Bhardwaj
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Scattering of a fluid-structure coupled wave at a flanged junction between two flexible waveguides [PDF]
, 2013 Copyright 2013 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.
Lawrie, JB, Nawaz, R
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Modeling Noise Sources and Propagation in External Gear Pumps
Energies, 2017 As a key component in power transfer, positive displacement machines often represent the major source of noise in hydraulic systems. Thus, investigation into the sources of noise and discovering strategies to reduce noise is a key part of improving the ...
Sangbeom Woo +3 more
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Design Criteria of a Helmholtz Silencer with Multiple Degrees of Freedom for Hydraulic Systems
Journal of Fluid Science and Technology, 2013 The vibration and noise caused by pressure pulsation, referred to as fluid-borne vibration or fluid-borne noise, are some of the most detrimental problems in hydraulic systems.
Takayoshi ICHIYANAGI +2 more
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Energies, 2020 This paper presents the experimental characterization of the vibroacoustic fields and the evaluation of noise performances of hydraulic pumps. Research on hydraulic pump noise has traditionally focused on the fluid-borne noise sources, and very often the
Sangbeom Woo, Andrea Vacca
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Laser-induced thermal acoustics (LITA) signals from finite beams [PDF]
, 1995 Laser-induced thermal acoustics (LITA) is a four-wave mixing technique that may be employed to measure sound speeds, transport properties, velocities, and susceptibilities of fluids. It is particularly effective in high-pressure gases (>1 bar).
Cummings, E. B. +2 more
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