Results 1 to 10 of about 166,841,558 (307)

Analytical solution of nonlinear rolling motion of ship using the method of multiple scales [PDF]

open access: yesمجله مدل سازی در مهندسی, 2017
In this research, the nonlinear rolling motion of ships is studied. After obtaining the governing equation of roll motion, the method of multiple scales perturbation technique is applied to solve the nonlinear differential equation.
Mohammad Mahdi Jalili   +2 more
doaj   +2 more sources

Formal Derivations of Mode Coupling Equations in Underwater Acoustics: How the Method of Multiple Scales Results in an Expansion over Eigenfunctions and the Vectorized WKBJ Solution for the Amplitudes

open access: yesJournal of Marine Science and Engineering, 2023
In this study formal derivation of mode coupling equations in underwater acoustics is revisited. This derivation is based on the method of multiple scales from which modal expansion of the field emerges, and the vectorized WKBJ equation for the ...
Mikhail Trofimov   +3 more
doaj   +3 more sources

Application of Multiple-Scales Method for the Dynamic Modelling of a Gear Coupling

open access: yesApplied Sciences, 2019
Thin-walled gears, designed for aeronautical applications, have shown very rich dynamics that must be investigated in advance of the design phase. One of the signatures of their dynamics is coupling due to the meshing teeth which stand-alone gear models ...
Enrico Pipitone   +2 more
doaj   +3 more sources

He’s multiple scales method for nonlinear vibrations

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2019
He’s multiple scales method is a couple of the homotopy perturbation method and the multiple scales technology in the classic perturbation method. This method has been proved to be a powerful mathematical tool to various nonlinear equations, and it is ...
Zhong-Fu Ren, Shao-Wen Yao, Ji-Huan He
doaj   +2 more sources

Enhancing Electrical Generation Efficiency through Parametrical Excitation and Slapping Force in Nonlinear Elastic Beams for Vibration Energy Harvesting

open access: yesSensors, 2023
This study aims to enhance conventional vibration energy harvesting systems (VEHs) by repositioning the piezoelectric patch (PZT) in the middle of a fixed–fixed elastic steel sheet instead of the root, as is commonly the case.
Yi-Ren Wang, Chun-Hsiao Kuo
doaj   +1 more source

Galloping Equation and Primary Resonance Investigation of Overhead Transmission Lines

open access: yesZhongguo dianli, 2021
The galloping of overhead transmission lines is one of the main causes for line damages. How to accurately describe the galloping of transmission lines is a worthy topic.
Guangyun MIN   +3 more
doaj   +1 more source

Multi-frequency piezomagnetoelastic energy harvesting in the monostable mode [PDF]

open access: yesJournal of Theoretical and Applied Vibration and Acoustics, 2018
The present article investigates effects of the multi-frequency excitation on the output power of a piezomagnetoelastic energy harvester. The piezomagnetoelastic power generator is assumed to operate in the mono-stable mode.
Amin Yousefpour   +2 more
doaj   +1 more source

Application of the method of multiple scales for nonlinear vibration analysis of mechanical systems with dry and lubricated clearance joints [PDF]

open access: yesJournal of Theoretical and Applied Vibration and Acoustics, 2017
In this study, the method of multiple scales is used to perform a nonlinear vibration analysis of a mechanical system in two cases; with dry and lubricated clearance joints.
Saeed Ebrahimi   +2 more
doaj   +1 more source

Nonlinear Dynamics Analysis of a Large Flexible Slender Truss-Structure Carrying a Manipulator for On-Orbit Assembly

open access: yesIEEE Access, 2022
Nonlinear dynamic of a flexible slender truss-structure mounted manipulator for on-orbit assembly, which can be simplified as a beam–rotating link interaction system, is theoretically investigated.
Xiaobin Tang   +3 more
doaj   +1 more source

A Modified Couple Stress-Based Model for the Nonlinear ‎Vibrational Analysis of Nano-Disks Using Multiple Scales Method [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
In this article, the nonlinear vibrational behavior of a nano-disk was analyzed using the multiple scales method (MSM). The modified couple stress theory was used to consider the small-scale effect via the application of nonlocal parameter.
Ali Alizadeh   +3 more
doaj   +1 more source

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