Results 1 to 10 of about 732,702 (118)

A Saturation-Based Method for Primary Resonance Control of Flexible Manipulator

open access: yesMachines, 2022
When primary resonance occurs, even a small external disturbance can abruptly excite large amplitude vibration and deteriorate the working performance of a flexible manipulator. Most active control methods are effective for non-resonant vibration but not
Ruihai Geng   +3 more
doaj   +3 more sources

Magnetic resonance lymphangiography in severe primary lymphedema of the right hand [PDF]

open access: yesRadiology Case Reports
Magnetic Resonance Lymphangiography (MRL) enables the assessment of lymphatic morphology without direct lymphatic vessel invasion. We present the case of a 19-year-old male with a two-year history of progressive swelling of the right hand.
Md. Tanzilur Rahman, MBBS, MD   +2 more
doaj   +2 more sources

Nonlinear Primary Frequency Response Analysis of Self-‎Sustaining Nanobeam Considering Surface Elasticity [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
This paper is focused to investigate the effects of nonlinear sources, including viscoelastic foundation and geometrical nonlinearity along with the surface elasticity and residual surface stress effects on the primary frequency response of a ...
Habib Ramezannejad Azarboni   +1 more
doaj   +1 more source

Size-Dependent Nonlinear Dynamics of a Non-Uniform Piezoelectric Microbeam Based on the Strain Gradient Theory [PDF]

open access: yesMechanics of Advanced Composite Structures, 2020
In this research, the nonlinear dynamics of an electrostatically actuated non-uniform microbeam equipped with a damping film and a piezoelectric layer have been studied.
Ayat Feyz Sayadian, Shirko Faroughi
doaj   +1 more source

Impacts of Small-Scale Effect and Nonlinear Damping on the Nonlinear Vibrations of Electrostatic Microresonators

open access: yesMicromachines, 2023
Although the small-scale effect and nonlinear damping on the nonlinear vibration of microbeam electrostatic resonators are important, they have been overlooked by researchers.
Dayao Meng, Kun Huang, Wei Xu
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

Validity of Galerkin Method at Beam’s Nonlinear Vibrations of the Single Mode with the Initial Curvature

open access: yesBuildings, 2023
A common strategy for studying the nonlinear vibrations of beams is to discretize the nonlinear partial differential equation into a nonlinear ordinary differential equation or equations through the Galerkin method.
Yunbo Zhang, Kun Huang, Wei Xu
doaj   +1 more source

Theoretical Study on Widening Bandwidth of Piezoelectric Vibration Energy Harvester with Nonlinear Characteristics

open access: yesMicromachines, 2021
In order to make a piezoelectric vibration energy harvester collect more energy on a broader frequency range, nonlinearity is introduced into the system, allowing the harvester to produce multiple steady states and deflecting the frequency response curve.
Zhang Qichang, Yang Yang, Wang Wei
doaj   +1 more source

The Nonlinear Dynamics Characteristics and Snap-Through of an SD Oscillator with Nonlinear Fractional Damping

open access: yesFractal and Fractional, 2022
A smooth and discontinuous (SD) oscillator is a typical multi-stable state system with strong nonlinear properties and has been widely used in many fields.
Minghao Wang   +3 more
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

Home - About - Disclaimer - Privacy