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Proceedings Papers

Finite Element Modelling of Residual Stresses in Flexible Pipe Pressure Armor Z Profiles

Rodrigo Provasi, Fernando Geremias Toni, Clovis de Arruda Martins, Roberto Ramos Junior, George Carneiro Campello, Rodolfo Figueira de Souza, Tiago Brun Coser
Proc. ASME. OMAE2024, Volume 3: Materials Technology; Subsea Technology, V003T04A011, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-125209
https://doi.org/10.1115/OMAE2024-125209
View Paper titled, Finite Element Modelling of Residual Stresses in Flexible Pipe Pressure Armor Z Profiles
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Topics: Armor, Finite element analysis, Modeling, Pipes, Pressure, Residual stresses
Proceedings Papers

Optimal Vibration Control of Floating Wind Turbines in the Presence of Nonlinearities

Roberto Ramos
Proc. ASME. OMAE2013, Volume 8: Ocean Renewable Energy, V008T09A014, June 9–14, 2013
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2013-10242
https://doi.org/10.1115/OMAE2013-10242
View Paper titled, Optimal Vibration Control of Floating Wind Turbines in the Presence of Nonlinearities
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Topics: Floating wind turbines, Vibration control, Control equipment, Wind velocity, Actuators, Blades, Vibration, Design, Dynamic models, Momentum
Journal Articles

Some Further Studies on the Axial–Torsional Behavior of Flexible Risers

Roberto Ramos, Jr., Clóvis A. Martins, Celso P. Pesce, Francisco E. Roveri
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research-Article
J. Offshore Mech. Arct. Eng. February 2014, 136(1): 011701.
Paper No: OMAE-10-1093
https://doi.org/10.1115/1.4025541
Published Online: November 12, 2013
View Article titled, Some Further Studies on the Axial–Torsional Behavior of Flexible Risers
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Topics: Elongation, Flexible risers, Pipeline risers, Pressure, Risers (Casting), Stress, Armor, Pipes, Stiffness
Proceedings Papers

A Nonlinear Analytical Model for Flexible Pipe Crushing Analysis

Celso P. Pesce, Guilherme R. Franzini, Marcos A. Rabelo, Roberto Ramos, Jr., Rodolfo T. Gonçalves, Rafael Tanaka, Teófilo Barbosa, Carlos A. Godinho
Proc. ASME. OMAE2012, Volume 3: Pipeline and Riser Technology, 569-583, July 1–6, 2012
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2012-83701
https://doi.org/10.1115/OMAE2012-83701
View Paper titled, A Nonlinear Analytical Model for Flexible Pipe Crushing Analysis
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Topics: Pipes
Proceedings Papers

Actuator Saturation Control of Floating Wind Turbines

Roberto Ramos
Proc. ASME. OMAE2012, Volume 7: Ocean Space Utilization; Ocean Renewable Energy, 359-367, July 1–6, 2012
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2012-83451
https://doi.org/10.1115/OMAE2012-83451
View Paper titled, Actuator Saturation Control of Floating Wind Turbines
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Topics: Actuators, Floating wind turbines, Control equipment, Blades, Vibration, Boundary element methods, Momentum, Morison equation, Nonlinear control systems, Offshore wind turbines
Proceedings Papers

Structural Behavior of Umbilicals: Part I—Mathematical Modeling

Celso Pupo Pesce, Roberto Ramos, Jr., Lauro Massao Yamada da Silveira, Rafael Loureiro Tanaka, Clo´vis de Arruda Martins, Fernanda Cristina Moraes Takafuji, Joa˜o Paulo Zi´lio Novaes, Carlos Alberto Ferreira Godinho
Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B, 871-880, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20892
https://doi.org/10.1115/OMAE2010-20892
View Paper titled, Structural Behavior of Umbilicals: Part I—Mathematical Modeling
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Topics: Modeling, Cables, Computer software, Steel, Stress, Constitutive equations, Cross section (Physics), Equilibrium (Physics), Mechanical behavior, Ocean engineering
Proceedings Papers

A Case Study on the Axial-Torsional Behavior of Flexible Risers

Roberto Ramos, Jr., Clo´vis de Arruda Martins, Celso Pupo Pesce, Francisco E. Roveri
Proc. ASME. OMAE2008, Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 481-491, June 15–20, 2008
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2008-57514
https://doi.org/10.1115/OMAE2008-57514
View Paper titled, A Case Study on the Axial-Torsional Behavior of Flexible Risers
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Topics: Flexible risers, Displacement, Stiffness, Stress, Armor, Oceans, Pipeline risers, Pressure, Risers (Casting), Steel
Proceedings Papers

Bending Stiffeners: A Parametric Structural Analysis

Jose´ R. de Souza, Roberto Ramos, Jr.
Proc. ASME. OMAE2008, Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 165-174, June 15–20, 2008
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2008-57202
https://doi.org/10.1115/OMAE2008-57202
View Paper titled, Bending Stiffeners: A Parametric Structural Analysis
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Topics: Structural analysis, Boundary-value problems, Design, Finite element analysis, Manufacturing systems, Nonlinear differential equations, Ocean engineering, Shapes, Stiffness, Stress
Proceedings Papers

A Consistent Analytical Model to Predict the Structural Behaviour of Flexible Risers Subjected to Combined Loads

Roberto Ramos, Jr., Celso P. Pesce
Proc. ASME. OMAE2002, 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, 141-148, June 23–28, 2002
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2002-28081
https://doi.org/10.1115/OMAE2002-28081
View Paper titled, A Consistent Analytical Model to Predict the Structural Behaviour of Flexible Risers Subjected to Combined Loads
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Topics: Flexible risers, Stress, Structural analysis
Proceedings Papers

A New Analytical Expression to Estimate the Bending Stiffness of Flexible Risers

Roberto Ramos, Jr., Celso P. Pesce, Clo´vis A. Martins
Proc. ASME. OMAE2003, Volume 1: Offshore Technology; Ocean Space Utilization, 513-522, June 8–13, 2003
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2003-37320
https://doi.org/10.1115/OMAE2003-37320
View Paper titled, A New Analytical Expression to Estimate the Bending Stiffness of Flexible Risers
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Topics: Armor, Flexible risers, Stiffness, Structural analysis
Proceedings Papers

Riser Technology and Industry-University Cooperation: Part I — Riser Mechanics

Celso P. Pesce, Clo´vis A. Martins, Jose´ A. P. Aranha, Marcos O. Pinto, Roberto Ramos, Jr., Renato M. da Silva
Proc. ASME. OMAE2003, Volume 2: Safety and Reliability; Pipeline Technology, 863-874, June 8–13, 2003
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2003-37488
https://doi.org/10.1115/OMAE2003-37488
View Paper titled, Riser Technology and Industry-University Cooperation: Part I — Riser Mechanics
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Topics: Pipeline risers, Riser mechanics, Risers (Casting), Design, Numerical analysis, Vortex-induced vibration, Cables, Compression, Computers, Dynamic positioning systems
Journal Articles

A Consistent Analytical Model to Predict the Structural Behavior of Flexible Risers Subjected to Combined Loads

Roberto Ramos,, Jr., Celso Pupo Pesce
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. May 2004, 126(2): 141–146.
https://doi.org/10.1115/1.1710869
Published Online: May 18, 2004
View Article titled, A Consistent Analytical Model to Predict the Structural Behavior of Flexible Risers Subjected to Combined Loads
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Topics: Armor, Deformation, Flexible risers, Pipes, Stiffness, Stress, External pressure, Pipeline risers, Risers (Casting), Pressure
Journal Articles

A Stability Analysis of Risers Subjected to Dynamic Compression Coupled With Twisting

Roberto Ramos,, Jr., Celso Pupo Pesce
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. August 2003, 125(3): 183–189.
https://doi.org/10.1115/1.1576819
Published Online: July 11, 2003
View Article titled, A Stability Analysis of Risers Subjected to Dynamic Compression Coupled With Twisting
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Topics: Compression, Pipeline risers, Risers (Casting), Stability, Stress, Buckling, Equilibrium (Physics), Cables