NDLI: On the Axial-Flexural-Torsional Coupling of Underwater Slender Cylinders

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Waldir, T. Pinto Carlos, A. Levi
Copyright Year	2012
Abstract	This paper presents a numerical model for the simulation of the axial-flexural-torsional coupling of undewater cylindrical structures. Cylindrical structures are largely utilized in the marine environment in a wide range of applications as in risers, marine cables, flexible pipes, mooring systems and so on. They may exhibit complex axial-flexural-torsional coupling, which makes the structural analysis highly nonlinear. In addition, the fluid-structure interaction may include flow induced vibrations, frequency lock-in and internal flow effects. The proposed three-dimensional model assumes that the structure aspect ratio is very high, its cross section is circular, the cable is elastic and may experience large displacements and large strains, as long as the elastic regime holds. The steady state load on the cylinder consists of the self-weight and buoyancy, drag and lift forces, in addition to a distributed residual twist along the cylinder. The drag and lift forces are evaluated by Morison type formulation. The governing differential equations are derived from first principles, assuming Newtonian mechanics. Then, they are solved numerically by a finite element formulation based on nonlinear space frame elements. The resulting set of algebraic equations is solved by a minimization technique that uses the Newton-Raphson algorithm. Results show the ability of the model to predict the static configuration of equilibrium of the cylinder and to capture the coupling between axial, flexural and torsional responses of the cylinder.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
Starting Page	675
Ending Page	683
Page Count	9
File Format	PDF
ISBN	9780791844908
DOI	10.1115/OMAE2012-83829
Volume Number	Volume 3: Pipeline and Riser Technology
Conference Proceedings	ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2012-07-01
Publisher Place	Rio de Janeiro, Brazil
Access Restriction	Subscribed
Subject Keyword	Buoyancy Fluid structure interaction Space frame structures Algebra Internal flow Classical mechanics Weight (mass) Risers (casting) Cylinders Vibration Computer simulation Three-dimensional models Equilibrium (physics) Mooring Locks (waterways) Drag (fluid dynamics) Flow (dynamics) Steady state Stress Cables Lift (fluid dynamics) Pipeline risers Algorithms Simulation Differential equations Finite element analysis Pipes Structural analysis
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Strouhal Number for VIV Excitation of Long Slender Structures

Time Domain Simulation of Vortex-Induced Vibrations Based on Phase-Coupled Oscillator Synchronization

Numerical Simulations of the Flow Past Cross-Flow Oscillating Circular Cylinders and Marine Riser Pipes

Coupled Axial/Lateral VIV of Marine Risers in Sheared Currents

Vortex-Induced Vibration of Catenary Riser: Reduced-Order Modeling and Lock-In Analysis Using Wake Oscillator

Forced Oscillation of a Circular Cylinder

An Efficient Finite Element for the Study of Drag Chains for a Floating Pipeline

Dynamic Behavior Analysis of a Deepwater Self Standing Hybrid Riser System

Numerical Simulation of Piggyback Risers Under Steady Current Loading

On the Axial-Flexural-Torsional Coupling of Underwater Slender Cylinders

Similar Documents

Strouhal Number for VIV Excitation of Long Slender Structures

Time Domain Simulation of Vortex-Induced Vibrations Based on Phase-Coupled Oscillator Synchronization

Numerical Simulations of the Flow Past Cross-Flow Oscillating Circular Cylinders and Marine Riser Pipes

Coupled Axial/Lateral VIV of Marine Risers in Sheared Currents

Vortex-Induced Vibration of Catenary Riser: Reduced-Order Modeling and Lock-In Analysis Using Wake Oscillator

Forced Oscillation of a Circular Cylinder

An Efficient Finite Element for the Study of Drag Chains for a Floating Pipeline

Dynamic Behavior Analysis of a Deepwater Self Standing Hybrid Riser System

Numerical Simulation of Piggyback Risers Under Steady Current Loading

On the Axial-Flexural-Torsional Coupling of Underwater Slender Cylinders