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RISNumerical Investigation of Wave Energy Absorbed by the Edinburgh Nodding Duck Device in Front of a Vertical Wall
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An open-source computational fluid dynamics (CFD) package, openfoam, is extended and applied to study the power takeoff (PTO) efficiency absorbed by an Edinburgh nodding duck wave energy converter (WEC) device installed ...
System Deformation Behavior of Friction Pair in Fretting Wear
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Several criteria for fretting wear behavior evaluation have been established since the proposal and establishment of the fretting loop concept. In this article, system deformation and system deformation ratio were defined. ...
Functional Generalized Inverse Beamforming Based on the Double Layer Microphone Array Applied to Separate the Sound Sources
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Beamforming based on microphone array measurements is a popular method for identifying sound sources. However, beamforming has many limitations that limit their precision. These limitations are addressed in research. To ...
Biased Modal Estimates from Random Decrement Signatures of Forced Acceleration Responses
Publisher: American Society of Civil Engineers
Abstract: The following study investigates a parameter identification problem of a linear dynamic system resulting from forced acceleration responses without any knowledge of input forces. When such a forced acceleration response ...
Application of Inverse Patch Transfer Functions Method With Wideband Holography Algorithm to Sparsely Distributed Sources Identification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Inverse patch transfer functions (iPTF) method has been developed to reconstruct the sound field of irregularly shaped sources in a noisy environment. The iPTF method, which uses classic regularization methods to solve the ...
Denoising Weighting Beamforming Method Applied to Sound Source Localization With Airflow Using Microphone Array
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Conventional frequency domain beamforming (FDBF) relies on the measured cross-spectral matrix (CSM). However, in wind tunnel tests, the CSM diagonal is contaminated by the interference of incoherent noise after long-time ...
Study on the High-Speed Rubbing Wear Behavior Between Ti6Al4V Blade and Nickel–Graphite Abradable Seal Coating
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The wear behavior of Ti6Al4V blade rubbed against nickel–graphite (Ni–G) abradable seal coating was studied with a high-speed rub test rig. According to the test results acquired at different incursion per passes and linear ...
Outsourcing Decisions for Truck Fleets with Quantity Discounts for Continuous Working Shifts
Publisher: American Society of Civil Engineers
Abstract: To cope with the capacity limitations of enterprises own transport fleet for container transport and the increasing competitive pressure, considering the operating costs and the demand uncertainty, an outsourcing decision-making ...
Regional Climate Responses in East Asia to the Black Carbon Aerosol Direct Effects from India and China in Summer
Publisher: American Meteorological Society
Abstract: Black carbon (BC) aerosol is a significant and short-lived climate forcing factor. Here, the direct effects of BC emissions from India (IDBC) and China (CNBC) are investigated in East Asia during summer using the ...