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Journal Articles

Combining Pole Placement and Online Empirical Mode Decomposition Methods to Adaptive Active Control of Structural Vibration

S. H. Momeni Massouleh, S. A. Hosseini Kordkheili, H. Mohammad Navazi, H. Bahai
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. August 2019, 141(4): 041008.
Paper No: VIB-18-1198
https://doi.org/10.1115/1.4042931
Published Online: April 18, 2019
View Article titled, Combining Pole Placement and Online Empirical Mode Decomposition Methods to Adaptive Active Control of Structural Vibration
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Topics: Algorithms, Excitation, Genetic algorithms, Pole placement, Resolution (Optics), Signals, Vibration, Vibration control, Polishing equipment, Plates (structures)
Proceedings Papers

Decision Support Tools for Selection of External Protective Coating for Pipelines

S. Yasseri, H. Bahai, M. T. Rahmati
Proc. ASME. OMAE2017, Volume 5B: Pipelines, Risers, and Subsea Systems, V05BT04A032, June 25–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2017-62610
https://doi.org/10.1115/OMAE2017-62610
View Paper titled, Decision Support Tools for Selection of External Protective Coating for Pipelines
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Topics: Coating processes, Coatings, Corrosion, Durability, Health risk assessment, Maintenance, Pipelines, Protective coatings, Surveillance
Proceedings Papers

Periodic and Fixed Boundary Conditions for Multi-Scale Finite Element Analysis of Flexible Risers

M. T. Rahmati, G. Alfano, H. Bahai
Proc. ASME. OMAE2016, Volume 5: Pipelines, Risers, and Subsea Systems, V005T04A006, June 19–24, 2016
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2016-54360
https://doi.org/10.1115/OMAE2016-54360
View Paper titled, Periodic and Fixed Boundary Conditions for Multi-Scale Finite Element Analysis of Flexible Risers
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Topics: Boundary-value problems, Finite element analysis, Flexible risers, Finite element model, Pipeline risers, Pipes, Risers (Casting)
Proceedings Papers

Experimental and Numerical Study of the Bending Behavior of a Flexible Riser Model

M. T. Rahmati, S. Norouzi, H. Bahai, G. Alfano
Proc. ASME. OMAE2015, Volume 5A: Pipeline and Riser Technology, V05AT04A049, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41816
https://doi.org/10.1115/OMAE2015-41816
View Paper titled, Experimental and Numerical Study of the Bending Behavior of a Flexible Riser Model
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Topics: Flexible risers, Pipes, Tendons, Armor, Finite element analysis, Manufacturing, Ocean engineering, Pipeline risers, Risers (Casting), Steel
Proceedings Papers

Small-Scale FE Modelling for the Analysis of Flexible Risers

M. T. Rahmati, G. Alfano, H. Bahai
Proc. ASME. OMAE2015, Volume 5A: Pipeline and Riser Technology, V05AT04A051, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41825
https://doi.org/10.1115/OMAE2015-41825
View Paper titled, Small-Scale FE Modelling for the Analysis of Flexible Risers
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Topics: Flexible risers, Modeling, Pipes, Boundary-value problems, Armor, Constitutive equations, Dynamics (Mechanics), Finite element analysis, Finite element model, Fluid structure interaction
Proceedings Papers

Nonlinear Dynamic Analysis of Flexible Riser Structures

S. A. Hosseini Kordkheili, H. Bahai
Proc. ASME. OMAE2008, Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 693-698, June 15–20, 2008
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2008-58014
https://doi.org/10.1115/OMAE2008-58014
View Paper titled, Nonlinear Dynamic Analysis of Flexible Riser Structures
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Topics: Dynamic analysis, Flexible risers, Finite element analysis, Displacement, Pipes, Rotation
Proceedings Papers

Non-Linear Finite Element Static Analysis of Flexible Risers With a Touch Down Boundary Condition

S. A. Hosseini Kordkheili, H. Bahai
Proc. ASME. OMAE2007, Volume 1: Offshore Technology; Special Symposium on Ocean Measurements and Their Influence on Design, 443-447, June 10–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2007-29379
https://doi.org/10.1115/OMAE2007-29379
View Paper titled, Non-Linear Finite Element Static Analysis of Flexible Risers With a Touch Down Boundary Condition
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Topics: Boundary-value problems, Finite element analysis, Flexible risers, Pipes, Buoyancy, Pipeline risers, Risers (Casting), Seabed, Soil, Steady state
Proceedings Papers

A Finite Element Analysis for Unbonded Flexible Risers Under Torsion

A. Bahtui, H. Bahai, G. Alfano
Proc. ASME. OMAE2007, Volume 1: Offshore Technology; Special Symposium on Ocean Measurements and Their Influence on Design, 169-173, June 10–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2007-29140
https://doi.org/10.1115/OMAE2007-29140
View Paper titled, A Finite Element Analysis for Unbonded Flexible Risers Under Torsion
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Topics: Finite element analysis, Flexible risers, Torsion, Computer simulation, Finite element model, Geometry, Pipeline risers, Risers (Casting), Stress
Proceedings Papers

Neural Networks Based Simulation of Significant Wave Height

H. Bazargan, H. Bahai, A. Aminzadeh-Gohari, A. Bazargan
Proc. ASME. OMAE2007, Volume 4: Materials Technology; Ocean Engineering, 401-409, June 10–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2007-29171
https://doi.org/10.1115/OMAE2007-29171
View Paper titled, Neural Networks Based Simulation of Significant Wave Height
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Topics: Artificial neural networks, Significant wave heights, Simulated annealing, Simulation, Splines
Journal Articles

Numerical and Analytical Modeling of Unbonded Flexible Risers

A. Bahtui, Ph.D. student, H. Bahai, G. Alfano
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Materials
J. Offshore Mech. Arct. Eng. May 2009, 131(2): 021401.
https://doi.org/10.1115/1.3058700
Published Online: March 26, 2009
View Article titled, Numerical and Analytical Modeling of Unbonded Flexible Risers
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Topics: Armor, Flexible risers, Pipeline risers, Pressure, Risers (Casting), Stress, Stiffness, Tension, Finite element analysis, Torsion
Proceedings Papers

Simulation of the Mean-Zero-Up-Crossing Wave Period Using Artificial Neural Networks Trained With Simulated Annealing Algorithm

H. Bazargan, H. Bahai, F. Aryana, S. F. Yasseri
Proc. ASME. OMAE2006, Volume 2: Ocean Engineering and Polar and Arctic Sciences and Technology, 569-577, June 4–9, 2006
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2006-92585
https://doi.org/10.1115/OMAE2006-92585
View Paper titled, Simulation of the Mean-Zero-Up-Crossing Wave Period Using Artificial Neural Networks Trained With Simulated Annealing Algorithm
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Topics: Algorithms, Artificial neural networks, Simulated annealing, Simulation, Splines, Waves
Journal Articles

A Finite Element Analysis for Unbonded Flexible Risers Under Torsion

A. Bahtui, H. Bahai, G. Alfano
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Offshore And Structural Mechanics
J. Offshore Mech. Arct. Eng. November 2008, 130(4): 041301.
https://doi.org/10.1115/1.2948956
Published Online: September 24, 2008
View Article titled, A Finite Element Analysis for Unbonded Flexible Risers Under Torsion
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Topics: Finite element analysis, Flexible risers, Pipeline risers, Risers (Casting), Stress, Torsion, Finite element model, Pipes, Friction, Modeling
Journal Articles

A Factorial Design Approach to Investigate the Effect of Geometry in Drill String Screw Connectors

H. Bahai, I. I. Esat, L. Rass
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. June 1995, 117(2): 101–107.
https://doi.org/10.1115/1.2835325
Published Online: June 1, 1995
View Article titled, A Factorial Design Approach to Investigate the Effect of Geometry in Drill String Screw Connectors
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Topics: Design, Drill strings, Geometry, Screws, Stress concentration, Optimization, Stress, Thread