Vibration reduction of a non-linear ship model using positive position feedback controllers

YA Amer, AT El-Sayed, EE Ahmed - International Journal of Dynamics and …, 2022 - Springer
In this paper, a four-degree-of-freedom (4-DOF) of coupled pitch-roll ship model including
two positive position feedback controllers (PPF) are considered appropriate to reduce the …

Vibration isolation and energy harvesting integrated in a Stewart platform with high static and low dynamic stiffness

ZQ Lu, D Wu, H Ding, LQ Chen - Applied Mathematical Modelling, 2021 - Elsevier
An electromagnetic Stewart platform with high static and low dynamic stiffness is explored to
reduce the vibration in six degrees of freedom (6-dofs) and simultaneously harvest energy …

Dynamic instability mechanism of post-buckled FG nanotubes transporting pulsatile flow: size-dependence and local/global dynamics

Q Jin, Y Ren - Applied Mathematical Modelling, 2022 - Elsevier
For bistable structures such as post-bucked nanotubes, the size-dependence may have
influences on both local and global dynamics. A local/global dynamic instability study of post …

Nonlinear dynamics of new magneto-mechanical oscillator

Z Hao, D Wang, M Wiercigroch - Communications in Nonlinear Science …, 2022 - Elsevier
This study presents modelling and analysis of a new magneto-mechanical (MM) oscillator
(Wiercigroch et al., 2020), which pays a special attention to mechanical and magnetic …

On static and dynamic snap-throughs of the imperfect post-buckled FG-GRC sandwich beams

Q Jin, X Hu, Y Ren, H Jiang - Journal of Sound and Vibration, 2020 - Elsevier
Post-buckled beams have been the basic elements of many mechanical devices used for
energy harvesting, low-frequency vibration isolation, etc. This paper focuses on the …

[HTML][HTML] Nonlinear vibrations control of a contact-mode AFM model via a time-delayed positive position feedback

YS Hamed, KM Albogamy, M Sayed - Alexandria Engineering Journal, 2021 - Elsevier
In this work, the nonlinear vibrations of a contact-mode atomic force microscopy (AFM)
model subjected to multi excitations are controlled via a time-delayed positive position …

Traditional and non-traditional active nonlinear vibration absorber with time delay combination feedback for hard excitation

S Mohanty, SK Dwivedy - … in Nonlinear Science and Numerical Simulation, 2023 - Elsevier
In this work, vibration suppression of a base excited nonlinear spring–mass primary system
subjected to simultaneous external hard harmonic and parametric excitations is carried out …

[HTML][HTML] Nonlinear modified positive position feedback control of cantilever beam system carrying an intermediate lumped mass

YS Hamed, A El Shehry, M Sayed - Alexandria Engineering Journal, 2020 - Elsevier
In this paper, we investigated the nonlinear oscillations, stability and resonance of a
cantilever beam system which carrying an intermediate lumped mass. The response of …

Nonlinear vibrations of a beam with non-ideal boundary conditions and subjected to two correlated or uncorrelated broadband random excitations-experiments …

S Talik, JJ Sinou, M Claeys, JP Lambelin - Communications in Nonlinear …, 2022 - Elsevier
This study presents experiments and numerical simulations of a beam with non-ideal
boundary conditions and subjected to two broadband correlated or uncorrelated random …

Modeling and dynamic response of variable mass system of maglev turning electric spindle

Z Cao, H Kang, H Liu, L Duan, Z Ouyang, Y Zhou… - Nonlinear …, 2023 - Springer
Accurately predicting the dynamic response of the maglev turning electric spindle is the key
requirement for ensuring cutting stability and realizing the active control of the magnetic …