Results 1 to 10 of about 175,930 (186)

Investigation of the effect of parameters of a nonlinear dynamic absorber on reducing the vibration amplitude of a nonlinear system [PDF]

open access: yesفناوری در مهندسی هوافضا, 2023
Purpose of paper is to use a nonlinear dynamic absorber as beam with concentrated mass at its end to reduce the amplitude of resonant nonlinear oscillator vibration.
Mohammad Mahdi Nazari, Abbas Rahi
doaj   +1 more source

Nonlinear Interferometric Vibrational Imaging [PDF]

open access: yesPhysical Review Letters, 2004
5 pages, Latex, 3 Postscript figures, uses revtex4 and epsfig, submitted Version 2: rescaled the figures to fit ...
Marks, D. L., Boppart, S. A.
  +6 more sources

Establishment and analysis of nonlinear frequency response model of planetary gear transmission system [PDF]

open access: yesMechanical Sciences, 2021
Based on the lumped parameter theory, a nonlinear bending torsion coupling dynamic model of planetary gear transmission system was established by considering the backlash, support clearance, time-varying meshing stiffness, meshing damping, transmission ...
H. Dong, Y. Bi, Z.-B. Liu, X.-L. Zhao
doaj   +1 more source

An improved time reversal mirror based on standard linear frequency modulation waveform

open access: yesScientific Reports, 2021
Time reversal mirror (TRM) technology is the adaptive focusing method evolved from the phase conjugate method in optics. Conventional incentive method in TRM technology is a narrow pulse signal with a high bandwidth.
Yongkang Wang   +4 more
doaj   +1 more source

Nonlinear Coupled Vibration Behavior of BFRP Cables on Long-Span Cable-Stayed Bridges under Parametric Excitation

open access: yesBuildings, 2023
Based on the cable-stayed beam model, this paper studies the nonlinear coupled vibration behavior of basalt fiber-reinforced polymer (BFRP) cables on long-span cable-stayed bridges under parametric excitation. Considering the sag, damping of BFRP cables,
Yaqiang Yang   +6 more
doaj   +1 more source

Nonlinear Characteristic of Clamp Loosing in Aero-Engine Pipeline System

open access: yesIEEE Access, 2021
Long service time and excessive vibration of aero-engine will cause failure of clamps, which usually fix pipelines on the outside of an aero-engine. In this paper, the nonlinear vibration characteristics caused by loosening clamps in aero-engine pipeline
Junzhe Lin   +5 more
doaj   +1 more source

Study on Dynamic Characteristics of the Bistable Nonlinear Damper

open access: yesApplied Sciences, 2023
A conventional dynamic vibration absorber based on resonance effect can hardly satisfy the requirement for low-frequency and broadband vibration control in actual engineering.
Yunan Liu   +4 more
doaj   +1 more source

A PID Control Method Based on Internal Model Control to Suppress Vibration of the Transmission Chain of Wind Power Generation System

open access: yesEnergies, 2022
Vibrations occur in the wind turbine drivetrain due to the drivetrain’s elasticity and gear clearance. Typically, the PID control method is used to suppress elastic vibration, while the method with the disturbance suppression function is used to suppress
Chenyang Zhou, Yanxia Shen
doaj   +1 more source

Prediction of Surface Roughness in Turning Applying the Model of Nonlinear Oscillator with Complex Deflection

open access: yesMathematics, 2022
This paper deals with prediction of the roughness of a cutting surface in the turning process, applying the vibration data of the system. A new type of dynamic model for a workpiece-cutting tool system, appropriate for vibration simulation, is developed.
Richárd Horváth   +2 more
doaj   +1 more source

About the nonlinear vibration equation of the beam

open access: yesVietnam Journal of Mechanics, 2023
In this paper, we present the establishment the vibration equation for the study of nonlinear beam effects. A illustrative example allows us to derive equations und use nonlinear vibration for calculating vibration of beams.
Nguyen Van Khang   +3 more
doaj   +1 more source

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