Results 71 to 80 of about 288,428 (355)
Advanced Engineering Materials, EarlyView.This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar +7 more
wiley +1 more source
Investigation of Factors Influencing the Structural Vibration in Ball Bearings
International Journal of Rotating Machinery, 2000 Hertzian equation for elastic contact is utilized along with lumped parameter approach to obtain the equations that govern the structural vibration of ball bearings.
Kapil Mehra +2 more
doaj +1 more source
Vibrations and structureborne noise in space station [PDF]
Analytical models were developed to predict vibrations and structureborne noise generation of cylindrical and rectangular acoustic enclosures. These models are then used to determine structural vibration levels and interior noise to random point input ...
Bofilios, D. A. +2 more
core +1 more source
Exact Model Reduction for Damped-Forced Nonlinear Beams: An Infinite-Dimensional Analysis
, 2017 We use invariant manifold results on Banach spaces to conclude the existence of spectral submanifolds (SSMs) in a class of nonlinear, externally forced beam oscillations. SSMs are the smoothest nonlinear extensions of spectral subspaces of the linearized
Haller, George, Kogelbauer, Florian
core +1 more source
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
Approaches for reducing structural vibration of the carbody railway vehicles
MATEC Web of Conferences, 2017 Reducing the weight of the railway vehicles stands as a decisive rule in their design, entailed by higher velocities, the need to consume less energy and lower the manufacturing costs, along with the maximization of the use of loads on the axle.
Dumitriu Mădălina, Cruceanu Cătălin
doaj +1 more source
A summary of recent NASA/Army contributions to rotorcraft vibrations and structural dynamics technology [PDF]
The requirement for low vibrations has achieved the status of a critical design consideration in modern helicopters. There is now a recognized need to account for vibrations during both the analytical and experimental phases of design.
Bartlett, Felton D., Jr. +2 more
core +1 more source
Vibration-based damage detection in plates by using time series analysis [PDF]
, 2008 This paper deals with the problem for vibration health monitoring (VHM) in structures with nonlinear dynamic behaviour. It aims to introduce two viable VHM methods that use large amplitude vibrations and are based on nonlinear time series analysis.
Manoach, Emil, Trendafilova, I.
core +1 more source
Advanced Functional Materials, EarlyView.In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du +4 more
wiley +1 more source
Monitoring and Control of Structural Vibrations
Applied SciencesMonitoring and control of structural vibrations are crucial to ensure structural safety and vibration comfort of civil engineering structures, such as buildings, bridges, tunnels, antennas, stadia etc [...]
Felix Weber
doaj +1 more source