Results 81 to 90 of about 42,948 (268)

Vibrational resonance in nonlinear vibration isolation systems [PDF]

open access: yes
In this study, we investigate vibrational resonance (VR) in a Duffing-type vibration isolation system using analytical and numerical approaches. Our results demonstrate that the response amplitude at low-frequency (LF) excitation can be enhanced by ...
Roy-Layinde, T. O.   +3 more
core   +1 more source

Analysis of the vibration of pipes conveying fluid [PDF]

open access: yes, 1999
The dynamic equilibrium matrix equation for a discretized pipe element containing flowing fluid is derived from the Lagrange principle, the Ritz method and consideration of the coupling between the pipe and fluid. The Eulerian approach and the concept of
Reese, JM   +5 more
core   +1 more source

On‐Water Surface Synthesis of 2D Conjugated Metal–Organic Framework Films With Controllable Layer Orientation Enabling High‐Performance Chemiresistive Sensing

open access: yesAdvanced Materials, EarlyView.
Layer orientation dictates charge transport in 2D conjugated metal–organic frameworks, yet controllable methods remain scarce. We report surfactant monolayer‐assisted on‐water synthesis of cm2‐scale Ni‐HHTP films with programmable face‐on and edge‐on orientations.
Jianjun Zhang   +22 more
wiley   +1 more source

Energy harvesting from vibrations with a nonlinear oscillator [PDF]

open access: yes, 2009
In this paper we present a nonlinear electromagnetic energy harvesting device that has a broadly resonant response. The nonlinearity is generated by a particular arrangement of magnets in conjunction with an iron-cored stator.
Clare, Lindsay R.   +11 more
core   +1 more source

Nonlocal Metaspire: A Scalable Elastic Material Platform With Decoupled Mechanical Modes

open access: yesAdvanced Materials, EarlyView.
Nonlocal Metaspire introduces sequential rotation to realize wider scalability in implementing complex nonlocal couplings in elastic metamaterials while suppressing unintended mode coupling. Numerical results clarify the underlying wave motions, demonstrate mode‐decoupled roton and maxon formation, and support a straightforward extension to higher ...
Seung Han Kim   +3 more
wiley   +1 more source

Analysis of Tangential Nonlinear Vibration on Machine Hydrostatic Slide

open access: yesShock and Vibration, 2019
In this paper, the nonlinear dynamic responses of the hydrostatic slide were investigated and the effects of damping and external force to control the vibration system were discussed.
Zhongkui Zhang   +3 more
doaj   +1 more source

A New Nonlinear Active Disturbance Rejection Control for the Cable Car System to Restrain the Vibration

open access: yesComplexity, 2020
The safety of the cable car system is very important for the lives of the people. But, it is easily affected by the environment such as the wind which causes the cable car system to have strong vibration disturbance, thus degrading the safety of the ...
Xinyan Hu, Lina Li
doaj   +1 more source

Nonlinear damper design for a vibration isolation system [PDF]

open access: yes, 2018
In this paper, vibration transmissibility of a single-degree-of-freedom (SDOF) for a mass-springdamper system is presented. This is done with a linear damper having a configuration perpendicular to a linear vertical spring. The method is analyzed using a
Udeze, C.C.   +2 more
core  

Intelligent Learning Algorithms for Active Vibration Control [PDF]

open access: yes, 2007
YesThis correspondence presents an investigation into the comparative performance of an active vibration control (AVC) system using a number of intelligent learning algorithms.
Dahal, Keshav P.   +2 more
core   +1 more source

Cornus Mas L. Seed‐Derived Biosorbent for Methylene Blue Removal: Surface Characterization and Biosorption Performance

open access: yesAdvanced Materials Interfaces, EarlyView.
Cornus mas L. seeds are transformed into a high‐performance biosorbent through chemical modification, effectively removing methylene blue from aqueous solutions. Comprehensive characterization and optimization reveal a maximum biosorption capacity of 71.71 mg g−1, establishing this sustainable, cost‐effective material as a promising solution for ...
Hakan Yıldız   +2 more
wiley   +1 more source

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