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Sergio H. Sphaier
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Proceedings Papers

Experimental and Numerical Evaluation of Manoeuvring Capability of an AHTS Using Free-Running Tests

Caio Swan de Freitas, Vinicius L. Vileti, Paulo de Tarso T. Esperança, Sergio H. Sphaier
Proc. ASME. OMAE2018, Volume 7B: Ocean Engineering, V07BT06A022, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-77637
https://doi.org/10.1115/OMAE2018-77637
View Paper titled, Experimental and Numerical Evaluation of Manoeuvring Capability of an AHTS Using Free-Running Tests
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Topics: Engineering simulation, Hydrodynamics, Oceans, Offshore platforms, Ships, Simulation, Uncertainty, Vessels
Proceedings Papers

Wave Force on a Partially Submerged Fixed Horizontal Circular Cylinder

Monica C. Silva, Marcelo A. Vitola, Paulo de Tarso T. Esperança, Sergio H. Sphaier
Proc. ASME. OMAE2018, Volume 7A: Ocean Engineering, V07AT06A042, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-77939
https://doi.org/10.1115/OMAE2018-77939
View Paper titled, Wave Force on a Partially Submerged Fixed Horizontal Circular Cylinder
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Topics: Circular cylinders, Wave forces, Waves, Cylinders, Ocean engineering, Cables, Computer software, Containment, Flow (Dynamics), Marine structures
Journal Articles

On the Generation of Isolated Green Water Events Using Wet Dam-Break

Jassiel V. Hernández-Fontes, Marcelo A. Vitola, Monica C. Silva, Paulo de Tarso T. Esperança, Sergio H. Sphaier
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research-Article
J. Offshore Mech. Arct. Eng. October 2018, 140(5): 051101.
Paper No: OMAE-17-1100
https://doi.org/10.1115/1.4040050
Published Online: May 21, 2018
View Article titled, On the Generation of Isolated Green Water Events Using Wet Dam-Break
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Topics: Water, Waves, Dams, Probes
Journal Articles

Numerical Uncertainty Analysis in Regular Wave Modeling

Monica C. Silva, Marcelo A. Vitola, Luís Eça, Paulo de Tarso T. Esperança, Sergio H. Sphaier
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research-Article
J. Offshore Mech. Arct. Eng. August 2018, 140(4): 041101.
Paper No: OMAE-17-1057
https://doi.org/10.1115/1.4039260
Published Online: February 22, 2018
View Article titled, Numerical Uncertainty Analysis in Regular Wave Modeling
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Topics: Errors, Uncertainty, Waves, Computer simulation, Modeling
Proceedings Papers

Use of Wet Dam-Break to Study Green Water Problem

Jassiel V. Hernández-Fontes, Marcelo A. Vitola, Monica C. Silva, Paulo de Tarso T. Esperança, Sergio H. Sphaier
Proc. ASME. OMAE2017, Volume 7A: Ocean Engineering, V07AT06A065, June 25–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2017-62113
https://doi.org/10.1115/OMAE2017-62113
View Paper titled, Use of Wet Dam-Break to Study Green Water Problem
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Topics: Dams, Water, Waves, Dynamic stability, Flow (Dynamics), Offshore structures, Safety
Proceedings Papers

Uncertainty Analysis of Numerical Wave Modelling With Relevance to the Dynamics of Oil Booms

Monica C. Silva, Marcelo de A. Vitola, Paulo de Tarso T. Esperança, Sergio H. Sphaier
Proc. ASME. OMAE2015, Volume 2: CFD and VIV, V002T08A015, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41949
https://doi.org/10.1115/OMAE2015-41949
View Paper titled, Uncertainty Analysis of Numerical Wave Modelling With Relevance to the Dynamics of Oil Booms
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Topics: Dynamics (Mechanics), Modeling, Uncertainty analysis, Waves, Computer software, Uncertainty, Wave propagation, Computer simulation, Containment, Currents
Proceedings Papers

Development of a Training Simulator for Oil Spill Response

Vinicius L. Vileti, Albino Ribeiro Neto, Joel S. Sales, Jr., Paulo de Tarso T. Esperança, Sergio H. Sphaier, Leonardo S. Antunes Maciel
Proc. ASME. OMAE2014, Volume 1B: Offshore Technology, V01BT01A019, June 8–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2014-24262
https://doi.org/10.1115/OMAE2014-24262
View Paper titled, Development of a Training Simulator for Oil Spill Response
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Topics: Boats, Dynamics (Mechanics), Morison equation, Performance, Seas, Stress, Waves, Wind
Proceedings Papers

Uncertainty Analysis for Inclining Tests

Joel S. Sales, Jr., Paulo de Tarso T. Esperança, Sergio H. Sphaier, Christiane Machado
Proc. ASME. OMAE2014, Volume 1B: Offshore Technology, V01BT01A020, June 8–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2014-24273
https://doi.org/10.1115/OMAE2014-24273
View Paper titled, Uncertainty Analysis for Inclining Tests
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Topics: Uncertainty analysis, Mooring, Uncertainty, Pipeline risers, Risers (Casting), ASTM International, Center of mass, Computer simulation, Data acquisition, Filtration
Proceedings Papers

Development of Deep Water Multicolumn Buoy

Rodrigo A. Barreira, Vinicius L. Vileti, Joel S. Sales, Jr., Sergio H. Sphaier, Paulo de Tarso T. Esperança
Proc. ASME. OMAE2014, Volume 1B: Offshore Technology, V01BT01A021, June 8–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2014-24274
https://doi.org/10.1115/OMAE2014-24274
View Paper titled, Development of Deep Water Multicolumn Buoy
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Topics: Buoys, Water, FPSO, Conceptual design, Design, Geometry, Mooring, Optimization, Patents, Tankers
Proceedings Papers

Comprehensive Downtime Analysis of DP-Assisted Offloading Operation of Spread Moored Platforms in Brazilian Waters

Diego C. Corrêa, Allan C. de Oliveira, Eduardo A. Tannuri, Sergio H. Sphaier
Proc. ASME. OMAE2013, Volume 1: Offshore Technology, V001T01A023, June 9–14, 2013
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2013-10405
https://doi.org/10.1115/OMAE2013-10405
View Paper titled, Comprehensive Downtime Analysis of DP-Assisted Offloading Operation of Spread Moored Platforms in Brazilian Waters
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Topics: Downtime, Mooring, Water
Journal Articles

Full Scale Measurements and Theoretical Predictions of 2nd Order Pitch and Roll Slow Motions of a Semisubmersible Platform

Vinicius L. F. Matos, Eric O. Ribeiro, Alexandre N. Simos, Sergio H. Sphaier
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research-Article
J. Offshore Mech. Arct. Eng. August 2013, 135(3): 031106.
Paper No: OMAE-10-1102
https://doi.org/10.1115/1.4024206
Published Online: June 6, 2013
View Article titled, Full Scale Measurements and Theoretical Predictions of 2nd Order Pitch and Roll Slow Motions of a Semisubmersible Platform
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Topics: Computation, Damping, Resonance, Semi-submersible offshore structures, Stress, Waves, Wind, Spectral energy distribution, Emission spectroscopy, Spectroscopy
Journal Articles

A Two-Dimensional Numerical Investigation of the Hysteresis Effect on Vortex Induced Vibration on an Elastically Mounted Rigid Cylinder

Juan B. V. Wanderley, Sergio H. Sphaier, Carlos Levi
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Cfd And Viv
J. Offshore Mech. Arct. Eng. May 2012, 134(2): 021801.
https://doi.org/10.1115/1.4004512
Published Online: December 2, 2011
View Article titled, A Two-Dimensional Numerical Investigation of the Hysteresis Effect on Vortex Induced Vibration on an Elastically Mounted Rigid Cylinder
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Topics: Cylinders, Navier-Stokes equations, Oscillations, Turbulence, Vortex shedding, Vortex-induced vibration, Circular cylinders, Simulation, Wakes, Flow (Dynamics)
Proceedings Papers

Numerical Study of the Influence of Initial Condition in Vortex Induced Vibration of a Circular Cylinder With Two Degree of Freedom

Bruno C. Ferreira, Marcelo A. Vitola, Juan B. V. Wanderley, Sergio H. Sphaier
Proc. ASME. OMAE2011, Volume 7: CFD and VIV; Offshore Geotechnics, 665-675, June 19–24, 2011
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2011-50196
https://doi.org/10.1115/OMAE2011-50196
View Paper titled, Numerical Study of the Influence of Initial Condition in Vortex Induced Vibration of a Circular Cylinder With Two Degree of Freedom
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Topics: Circular cylinders, Degrees of freedom, Vortex-induced vibration, Oscillations, Cross-flow, Cylinders, Turbulence, Cables, Design, Displacement
Proceedings Papers

Reynolds Number Effect on Vortex-Induced Vibration on a Two-Dimensional Circular Cylinder With Low Mass-Damping Parameter

Juan B. V. Wanderley, Luiz F. Soares, Marcelo Vitola, Sergio H. Sphaier, Carlos Levi
Proc. ASME. OMAE2011, Volume 7: CFD and VIV; Offshore Geotechnics, 69-80, June 19–24, 2011
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2011-49049
https://doi.org/10.1115/OMAE2011-49049
View Paper titled, Reynolds Number Effect on Vortex-Induced Vibration on a Two-Dimensional Circular Cylinder With Low Mass-Damping Parameter
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Topics: Circular cylinders, Damping, Reynolds number, Vortex-induced vibration, Turbulence, Cylinders, Dampers, Dynamics (Mechanics), Navier-Stokes equations, Ocean engineering
Proceedings Papers

2nd Order Pitch and Roll Slow Motions of a Semi-Submersible Platform: Full Scale Measurements and Theoretical Predictions Comparative Study

Vini´cius L. F. Matos, Eric O. Ribeiro, Alexandre N. Simos, Sergio H. Sphaier
Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 1, 581-592, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20898
https://doi.org/10.1115/OMAE2010-20898
View Paper titled, 2nd Order Pitch and Roll Slow Motions of a Semi-Submersible Platform: Full Scale Measurements and Theoretical Predictions Comparative Study
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Topics: Semi-submersible offshore structures, Stress, Damping, Mooring, Ocean engineering, Resonance, Waves, Accelerometers, Design, Displacement
Proceedings Papers

A Numerical Investigation of the Response of an Elastically Mounted Rigid Cylinder With Two Degrees of Freedom

Bruno C. Ferreira, Marcelo A. Vitola, Juan B. V. Wanderley, Sergio H. Sphaier, Carlos A. Levi
Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 383-392, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20090
https://doi.org/10.1115/OMAE2010-20090
View Paper titled, A Numerical Investigation of the Response of an Elastically Mounted Rigid Cylinder With Two Degrees of Freedom
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Topics: Cylinders, Degrees of freedom, Vortex-induced vibration, Oscillations, Turbulence, Circular cylinders, Computer simulation, Dampers, Displacement, Engineering simulation
Proceedings Papers

Validation of Vortex Induced Vibration With One Degree of Freedom

Sicilia Pacheco, Marcelo A. Vitola, Juan B. V. Wanderley, Sergio H. Sphaier, Carlos A. Levi
Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 651-659, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20461
https://doi.org/10.1115/OMAE2010-20461
View Paper titled, Validation of Vortex Induced Vibration With One Degree of Freedom
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Topics: Degrees of freedom, Vortex-induced vibration, Cylinders, Computer simulation, Dampers, Displacement, Navier-Stokes equations, Numerical analysis, Ocean engineering, Pipeline risers
Proceedings Papers

The Response of an Elastically Mounted Rigid Cylinder Subjected to Vortex Shedding and Support Motion

Luiz F. N. Soares, Juan B. V. Wanderley, Marcelo Vitola, Sergio H. Sphaier, Carlos Levi
Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 393-400, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20091
https://doi.org/10.1115/OMAE2010-20091
View Paper titled, The Response of an Elastically Mounted Rigid Cylinder Subjected to Vortex Shedding and Support Motion
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Topics: Cylinders, Vortex shedding, Vortex-induced vibration, Pipeline risers, Risers (Casting), Turbulence, Circular cylinders, Dampers, Excitation, Navier-Stokes equations
Proceedings Papers

Forced Oscillation of a Circular Cylinder

Bruno G. Camargo, Marcelo A. Vitola, Juan B. V. Wanderley, Sergio H. Sphaier, Carlos A. Levi
Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 401-408, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20092
https://doi.org/10.1115/OMAE2010-20092
View Paper titled, Forced Oscillation of a Circular Cylinder
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Topics: Circular cylinders, Oscillations, Vibration, Drag (Fluid dynamics), Locks (Waterways), Turbulence, Cylinders, Flow (Dynamics), Ocean engineering, Pipeline risers
Proceedings Papers

A Numerical Investigation of the Hysteresis Effect on Vortex Induced Vibration on an Elastically Mounted Rigid Cylinder

Juan B. V. Wanderley, Sergio H. Sphaier, Carlos Levi
Proc. ASME. OMAE2009, Volume 5: Polar and Arctic Sciences and Technology; CFD and VIV, 653-660, May 31–June 5, 2009
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2009-79725
https://doi.org/10.1115/OMAE2009-79725
View Paper titled, A Numerical Investigation of the Hysteresis Effect on Vortex Induced Vibration on an Elastically Mounted Rigid Cylinder
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Topics: Cylinders, Vortex-induced vibration, Turbulence, Vortex shedding, Circular cylinders, Dampers, Engineering simulation, Navier-Stokes equations, Oscillations, Simulation