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Keywords: FEM
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Proceedings Papers

Proc. ASME. OMAE2022, Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems, V003T04A003, June 5–10, 2022
Paper No: OMAE2022-78325
...-dimensional approach shows higher concentration results than the three-dimensional approach. Furthermore, the difference between the two approaches suggests that the shielding provided by the helicoidal wires is relevant. S SCC annulus composition shielding effect flexible pipe FEM Proceedings...
Proceedings Papers

Proc. ASME. OMAE2022, Volume 7: CFD and FSI, V007T08A043, June 5–10, 2022
Paper No: OMAE2022-79446
... Abstract Springing of hull girder to very high harmonics of wave loads is investigated thoroughly using one-way coupling with the help of two-way direct coupling between Computational Fluid Dynamics (CFD) and Finite Element Method (FEM). A segmented barge is chosen as a subject model, in which...
Proceedings Papers

Proc. ASME. OMAE2022, Volume 9: Offshore Geotechnics, V009T10A011, June 5–10, 2022
Paper No: OMAE2022-79329
... monopile embedded in layered soil using the finite element method (FEM) including a combination of soft clays and dense sands. Based on the FEM results, PISA parameters for the monopile-soil interaction curves are derived and implemented in a 1D beam model to calculate the pile deflection. The results...
Proceedings Papers

Proc. ASME. OMAE2022, Volume 1: Offshore Technology, V001T01A002, June 5–10, 2022
Paper No: OMAE2022-78395
... in the moonpool are calculated using CFD. Subsequently, the slamming pressure results are used in a structural FEM model to calculate the stress on the structural elements. The fatigue life of the structure inside the moonpool is predicted using suitable S-N curves from classification society rules...
Proceedings Papers

Proc. ASME. OMAE2022, Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems, V003T04A024, June 5–10, 2022
Paper No: OMAE2022-79856
... conventional material model or full-scale bending trials demonstrating improved accuracy and agreement with testing. The proposed material model is part of an in-house material model library integrated in a numerical tool package dedicated to rigid pipeline design. reeling FEM parameter-based material...
Proceedings Papers

Proc. ASME. OPTC2021, ASME 2021 Onshore Petroleum Technology Conference, V001T07A001, September 27–29, 2021
Paper No: OPTC2021-67533
... elastic modulus and viscosity of drilling fluid were taken into failure of drilling string [3] (Fig. 2(c Thirdly, with the complex account. The finite element method (FEM) is used to realize the vibration of drill string system, it is prone to stick slip, jump, numerical solution of the nonlinear...
Proceedings Papers

Proc. ASME. OMAE2020, Volume 2A: Structures, Safety, and Reliability, V02AT02A016, August 3–7, 2020
Paper No: OMAE2020-19270
... decreased. In addition, with the increase of impact number, the elastic deformation energy stored by the tubular pipe increased, and the plastic deformation energy decreased. Keywords: Tubular Pipes; FEM; Dynamic Behavior. INTRODUCTION With the rapid development of the ocean engineering in recent years...
Topics: Pipes
Proceedings Papers

Proc. ASME. OMAE2020, Volume 4: Pipelines, Risers, and Subsea Systems, V004T04A002, August 3–7, 2020
Paper No: OMAE2020-18010
... finite macroelements, consisting of an extension of a previous work from the same authors. New synchronization algorithms were developed, with scalability improvements, the methodology was extended to other finite macroelements and comparisons were made with a well-stablished FEM software...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 4: Materials Technology, V004T03A041, June 9–14, 2019
Paper No: OMAE2019-95281
... life, FEM, Gas pipeline, Sleeve weld repair. 1. INTRODUCTION The buried gas pipeline carrying natural gas shall maintain structural integrity throughout the design life. For this purpose, the inspection shall be performed periodically, and for defects found during the inspection, the FFS (fitness...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 4: Materials Technology, V004T03A039, June 9–14, 2019
Paper No: OMAE2019-95268
... in formula format. For real engineering application, the main advantage of the proposed method will be useful for fatigue prediction rapidly and conveniently. Keywords: fracture and fatigue; geometric parameters; FEM; closed-form SIF solution. INTRODUCTIONS Fatigue failures of ship and offshore structures...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 5A: Pipelines, Risers, and Subsea Systems, V05AT04A024, June 9–14, 2019
Paper No: OMAE2019-95988
.... It is found that carbon fiber reinforced spiral rod in umbilical could have good mechanical properties with less weight. carbon fiber spiral rod umbilical stiffness matrix FEM ANALYSIS OF MECHANICAL PROPERTIES OF CARBON FIBER REINFORCED SPIRAL ROD IN UMBILICAL Yu Zhang1, Ning-yi Cheng, Yi Zhao...
Proceedings Papers

Proc. ASME. OMAE2013, Volume 3: Materials Technology; Ocean Space Utilization, V003T05A001, June 9–14, 2013
Paper No: OMAE2013-10052
... The aquaculture fish cage encounters random waves in the open sea. Understandings of their dynamic behaviors are important for design of the deepwater fish cages. In this paper, the hydrodynamic responses of a gravity-typed fish cage in irregular waves are studied based on FEM and Morison...
Proceedings Papers

Proc. ASME. OMAE2012, Volume 1: Offshore Technology, 239-248, July 1–6, 2012
Paper No: OMAE2012-83284
... In this paper, based on the Morison equation and FEM, we studied the dynamic responses of the floating cage system in currents and waves. The nets are modeled by truss elements, the current and wave forces are calculated based on the Morison equation at each time step. The floater is modeled...
Proceedings Papers

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 4, 811-815, June 6–11, 2010
Paper No: OMAE2010-20592
.... Keywords: bucket foundation platform, ice-induced vibration, FEM, fixed ice-breaking cone 1 Introduction It is necessary to study and develop economical platform structures to achieve the economy exploitation in the marginal oil fields in the Bohai Sea, China. The JZ9-3E riser bucket foundation platform...
Proceedings Papers

Proc. ASME. OMAE2009, Volume 1: Offshore Technology, 775-784, May 31–June 5, 2009
Paper No: OMAE2009-79989
... are compared with results from other existing hydroelastic programs. In general it is shown that numerical results show good agreement with experimental values. Ship hydroelasticity Flexible barge FEM Seakeeping Vertical Bending Horizontal Bending Torsion Model tests Numerical simulation...
Proceedings Papers

Proc. ASME. OMAE2008, Volume 1: Offshore Technology, 637-644, June 15–20, 2008
Paper No: OMAE2008-57588
... response history analysis (NLRHA). A jacket type offshore platform includes of piles, jacket and deck with different behaviors during strong ground motion. In this paper, three-dimensional model of jacket and pile has been considered using a combination of finite element method (FEM) and beam on nonlinear...
Proceedings Papers

Proc. ASME. OMAE2003, Volume 3: Materials Technology; Ocean Engineering; Polar and Arctic Sciences and Technology; Workshops, 831-837, June 8–13, 2003
Paper No: OMAE2003-37411
... in shallow water on a soft sediment layer. This paper discusses the assessment of ice interaction scenarios and the FEM stability analyses for the design of the ice barriers. In normal winters, rock slopes will cause the thin ice to fail in bending at low forces creating ice rubble. In this scenario, barrier...
Proceedings Papers

Proc. ASME. OMAE2006, Volume 1: Offshore Technology; Offshore Wind Energy; Ocean Research Technology; LNG Specialty Symposium, 187-194, June 4–9, 2006
Paper No: OMAE2006-92180
... of the results to the model main parameters is investigated. nonlinear seismic response offshore platforms BNWF FEM pile-soil-structure interaction Proceedings of OMAE2006 25th International Conference on Offshore Mechanics and Arctic Engineering F Associate Professor, Civil Eng. Dept., Iran Univ...