... geomechanics sif k-joint chord assessment consideration stress intensity factor geometry software modelling choice Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16-21, 2024 Copyright © 2024 by the International Society of Offshore...

... axial force geometric parameter extrapolation point tubular joint chord peak value three-planar tubular y-joint brace side stress concentration factor chord side scf distribution weld toe curve formula plane ABSTRACT The three-planar tubular Y-joint is normally multiplanar...

... subsea system slippage spudcan slip chord platform design jack up drilling platform uc value operation upstream oil & gas platform contact position footprint truss leg drilling equipment spudcan calculation result von mise stress strength great significance pinion stress...

... of three chords with racks connected with each other through cylindrical shaped bracings and spanbreakers. Fig. 1 shows a typical GustoMSC designed drilling jack-up with three truss legs. The design of a jack-up rig requires the prediction of the forces generated by wind on the truss legs for the transit...

... ABSTRACT The leg chord of truss type leg has a complex rack structure, and its hydrodynamic analysis is usually based on cylindrical approximation or experience, resulting in the deviation of the results from the reality. In order to improve the accuracy of the results, CFD is used to simulate...

... against the background of the large quantities required for offshore wind farms (Michels and Brauser, 2014). stress distribution numerical model seam preparation nsa ssa wind energy renewable energy chord linear extrapolation application hot spot stress sharp notch artificial...

.... RPD (Rack Phase Difference) system can monitor the rack vertical phase difference of adjacent chord of truss type leg. In this paper, the RPD calculation principle is studied and an available analysis method of critical RPD applicable to spudcan sliding condition is obtained. The method can provide...

.... outer diameter calculation brace pipe upstream oil & gas reduction assumption chord weight reduction drilling equipment geometry jack-up rig hollow section diameter initial structure construction stress utilization utilization framework model fleischer wall thickness Shaped...

.... Analyses were performed for a single and double T-rack leg. The calculations were carried out for both current and wave loads. In order to ensure reliable results, benchmark calculations were performed for a smooth circular cylinder representing a cylindrical leg and a chord with racks from a typical...

... characteristic chord accuracy flexibility plastic mechanism deformation surface representation gradient section force plasticity plastic deformation beam element formulation stiffness matrix matrix artificial intelligence upstream oil & gas representation cyclic plasticity...

.... The results presented here form part of extensive numerical investigations (Herion et al, 2013). recommendation stress concentration factor zhao hollow section scf numerical investigation iso 14347 structural stress formulae brace cidect investigation different configuration chord...

... allowable significant wave height exceedance probability energy conservation chord structural capacity retrieval wave height environmental condition upstream oil & gas footing spudcan laterally Leg to Seabed Impact Analysis for Jackup during Installation Weiliang Dong, Jianjun Wang...

... of the CIDECT Design Guide 8 and on a publication of Herion and Mang (1996). van wingerde structural stress brace investigation wingerde determination thickness cidect design guide 8 herion stress concentration factor mang hollow section zhao chord weld recommendation formulae cidect...

... been designed and fabricated. A simple design is achieved through use of a single actuator to generate a travelling wave down the chord of the fin. The hydrodynamic performance is studied through use of flow visualizations, which indicate that thrust is produced between a Strouhal number of ~0.5-3...

... component contour hydrodynamic load upper layer shear force upstream oil & gas interface internal wave lower layer internal soliton chord tubular component equation amplitude surface wave Hydrodynamic Loads on Jack-up Legs Due to Oceanic Internal Waves Sing-Kwan Lee Technology, ABS...

... fatigue life tubular kk joint hss aberration factor model aberration test model prediction chord equation hss distribution fatigue test multi-planer tubular kk joint model test dimension aberration Fatigue Analysis on a Multi-planer Tubular KK Joints Based on Scalded Model Test Jingxia...

... effect hydrodynamic force single chord calculation bay unit chord comparative study cfd simulation sname approach cfd computation prediction modeling & simulation Jack-Up Leg Hydrodynamic Load Prediction - a Comparative Study of Industry Practice with CFD and Model Test Results Sing...

... support structures like Jacket and Tripod rather than the comparatively soft monopole foundations. For lattice structures, the joints of chords and braces are always the weakest point in terms of fatigue resistance. Structural discontinuities due to the crossing of members as well as notches due...

... In the current design codes, the equations for the effects of chord stress in circular (CHS) and rectangular (RHS) hollow section joints are inconsistent. For CHS joints, the chord stress function is based on the chord pre-stress while for RHS joints the maximum chord stress is used...

... ABSTRACT This paper deals with a numerical investigation of 100% overlap joints covering uniplanar and multiplanar joints. The numerical results indicate that in most cases the 100% overlap joints fail by local yielding of the chord member at the joint location due to axial load and bending...