Results 51 to 60 of about 1,129,305 (370)
From Damage to Functionality: Remanufacturing of Thrust Roller Bearings by Tailored Forming
Advanced Engineering Materials, EarlyView.Herein, the wear and fatigue behavior of repaired bearing raceways with a new powder alloy is investigated using a FE8 test‐rig and an oscillating tribometer. The tests are compared with industrial manufactured bearings to evaluate the repair quality. The repair can extend the service life of the repaired bearing to that of a new bearing and improves ...
Felix Saure +3 more
wiley +1 more source
Analysis of Sound Absorbing Properties of Activated Carbon Fiber Felts Based on Density Change
Nantong Daxue xuebao. Ziran kexue ban, 2021 In order to study the sound absorbing properties of activated carbon fiber felts, three kinds of activated carbon fiber felts with different densities were selected, and the double channel acoustic analyzer with impedance tube was used to test the ...
SHEN Yue, YAN Xuefeng, LIU Qixia
doaj +1 more source
Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials
Advanced Engineering Materials, EarlyView.This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani +4 more
wiley +1 more source
A Perforated Plate with Stepwise Apertures for Low Frequency Sound Absorption
Applied Sciences, 2021 A perforated plate with stepwise apertures (PPSA) is proposed to improve sound absorption for low frequencies. In contrast with an ordinary perforated plate with insufficient acoustic resistance and small acoustic mass, the perforated plate with stepped ...
Xin Li, Bilong Liu, Chong Qin
doaj +1 more source
Design of an underwater acoustic bend by pentamode metafluid
, 2017 We design an impedance matching underwater acoustic bend with pentamode microstructure. The proposed bend is assembled by pentamode lattice. The effective density and compressive mod- ulus of each unit cell can be tuned simultaneously, which are ...
Chen, Yi +4 more
core +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley +1 more source
Relating Geotechnical Sediment Properties and Low Frequency CHIRP Sonar Measurements
Remote SensingLow frequency acoustic methods are a common tool for seabed stratigraphy mapping. Due to the efficiency in seabed mapping compared to geotechnical methods, estimating geotechnical sediment properties from acoustic surveying is attractive for many ...
Reem Jaber +4 more
doaj +1 more source
AIP Advances, 2021 In this paper, a Multiphysics coupling simulation model of flow and acoustics is proposed using COMSOL software, and its results are verified by comparing with experimental results of others. Then, the aerodynamic pressure above the bluff body surface at
Min Li, Jiu Hui Wu, Xiao Yang Yuan
doaj +1 more source
Impact tolerant material [PDF]
, 1990 A material is protected from acoustic shock waves generated by impacting projectiles by means of a backing.
Heyman, Joseph S.
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Surface Impedance Determination via Numerical Resolution of the Inverse Helmholtz Problem
, 2017 Assigning boundary conditions, such as acoustic impedance, to the frequency domain thermoviscous wave equations (TWE), derived from the linearized Navier-Stokes equations (LNSE) poses a Helmholtz problem, solution to which yields a discrete set of ...
Gupta P. +5 more
core +1 more source