Fatigue damage characteristics of a flexible cylinder under concomitant excitation of time-varying axial tension and VIV

Y Lu, Z Yu, Y Ma, Z Liu, W Xu - Ocean Engineering, 2023 - Elsevier
Flexible cylindrical structures are susceptible to the concomitant excitation of vortex-induced
vibration (VIV) and time-varying axial tension in offshore engineering. The structural …

Reduced-order modelling based on non-linear modes

CEN Mazzilli, PB Gonçalves, GR Franzini - International Journal of …, 2022 - Elsevier
This paper addresses a detailed literature review on non-linear modes of vibration and its
role in obtaining more efficient reduced-order models, as compared to those obtained by …

Nonlinear dynamics of three-dimensional vortex-induced vibration prediction model for a flexible fluid-conveying pipe

W Yang, Z Ai, X Zhang, X Chang, R Gou - International Journal of …, 2018 - Elsevier
In this article, a three-dimensional nonlinear dynamic model, which takes into account both
the geometric and hydrodynamic nonlinearities, is presented to characterize the behavior of …

The effect of time-varying axial tension on VIV suppression for a flexible cylinder attached with helical strakes

Y Ma, W Xu, H Ai, Y Wang, K Jia - Ocean Engineering, 2021 - Elsevier
Flexible cylindrical structures, such as top-tensioned risers (TTRs) and tethers of tension leg
platforms (TLPs), usually vibrate under the combined excitation of vortex shedding and time …

Dynamic characteristics of a slender flexible cylinder excited by concomitant vortex-induced vibration and time-varying axial tension

Y Ma, W Xu, T Pang, Q Wang, J Lai - Journal of Sound and Vibration, 2020 - Elsevier
Flexible cylinder structures, such as top-tensioned risers (TTRs) and tethers of tension leg
platforms (TLPs), display complicated dynamic characteristics under the combined excitation …

Coupled vibration analysis of submerged floating tunnel system in wave and current

Z Chen, Y Xiang, H Lin, Y Yang - Applied Sciences, 2018 - mdpi.com
Featured Application A simplified theoretical model is proposed for vibration analysis of the
coupled Submerged floating tunnel (SFT) tube-cable system under combined vortex …

Dynamic response of a deepwater riser subjected to combined axial and transverse excitation by the nonlinear coupled model

S Lei, XY Zheng, D Kennedy - International Journal of Non-Linear …, 2017 - Elsevier
In offshore engineering long slender risers are simultaneously subjected to both axial and
transverse excitations. The axial load is the fluctuating top tension which is induced by the …

Hydrodynamics of a flexible cylinder under modulated vortex-induced vibrations

C Liu, S Fu, M Zhang, H Ren, Y Xu - Journal of Fluids and Structures, 2020 - Elsevier
Both amplitude modulation and frequency modulation of Vortex-induced Vibration (VIV) are
observed in a recent model test of a flexible cylinder under oscillatory flow, but its …

An experimental investigation on concomitant vortex-induced vibration and axial top-motion excitation with a long flexible cylinder in vertical configuration

GR Franzini, CP Pesce, RT Gonçalves, ALC Fujarra… - Ocean …, 2018 - Elsevier
An experimental investigation of concomitant Vortex-Induced Vibration (VIV) and top-motion
excitation with a long and vertical flexible cylinder is presented. Underwater optical …

Non-linear reduced-order model for parametric excitation analysis of an immersed vertical slender rod

GR Franzini, CEN Mazzilli - International Journal of Non-Linear Mechanics, 2016 - Elsevier
A unidirectional three-mode reduced-order model (ROM) for the lateral motion of a slender
and immersed rod subjected to harmonic and axial top motion was derived from the …