The rigid finite element and segment methods in dynamic analysis of risers

Adamiec–Wójcik, Iwona; Brzozowska, Lucyna; Wojciech, Stanisław

doi:10.1007/978-3-030-20131-9_297

Cited by 1 publication

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main idea of the methods consists in dividing the flexible links (risers, ropes) into rigid elements (rfe), which assume the inertial properties (mass, mass moments of inertia) of a discrete element, and into massless and non-dimensional spring-damping elements (sde), which reflect flexibility and damping. These methods have been used for analysis of riser dynamics by Szczotka (2011), Drąg (2021) and Adamiec-Wójcik et al(2017, 2019a, 2021b.…”

Section: Introductionmentioning

confidence: 99%

Rigid finite element method in modelling of dynamics of risers with consideration of large deflections

Adamiec-Wójcik,

Brzozowska,

Drąg

et al. 2024

Preprint

View full text Add to dashboard Cite

Dynamic analysis of risers often requires consideration of large deflections. One of the discretisation methods which includes analysis of large deflections is the rigid finite element method (RFEM). This paper presents a new, numerically effective, planar formulation of the method. The model takes into account large deflections caused by bending and longitudinal flexibilities. The models elaborated are, after validation, applied in calculations of static deflections and analysis of free frequencies of risers. Investigations are concerned with how a riser’s parameters (such as length and top/bottom supports), the sea current and internal flow all influence frequencies of free vibrations. Analysis of dynamics of a riser with and without an additional mass attached to the bottom of the riser is also carried out.

show abstract