.... The Society of Naval Architects and Marine Engineers may 2021 thermomechanical tensioning tmt pull lug tmt process welding distortion mitigation reduction distortion mitigation out-of-plane distortion grillage structure experiment distortion ship production welding stiffener tmt...

.... It is found that the AR of plates have great influence on the ultimate strength of cracked-pitted plates. Because of the position and orientation of the crack, the length of central longitudinal crack has no influence on ultimate strength reduction of cracked and cracked-pitted plates. The results show...

... examples using the proposed method are shown at the end of article. 17 12 2019 5 10 2020 17 2 2021 17 2 2021 2021. The Society of Naval Architects and Marine Engineers marine transportation calculation module reduction modularization information series ship piping...

...Carlos Mascaraque-Ramírez; Lorena Para-González; Paloma Marco-Jornet In an increasingly globalized sector such as the naval construction sector, the search for reduction in execution terms and production costs becomes essential. With this aim, the vessel project should be analyzed globally...

... of knowledge reduction is proposed, which enhances the noise immunity and fault tolerance of the model, and improves the efficiency of knowledge acquisition. Through introducing fuzzy logic, a method of modeling the line heating process based on RSs and fuzzy logic is proposed, which effectively extracts...

... and user-friendly WSP software tool. An approximately 5× reduction in analysis time (from model setup through solve time) was realized through process automation, development of a weld joint database, and two-step weld sequence optimization algorithms. Physical testing of tank-like structures validated...

..., caused by welding of the stiffeners, is mainly responsible for the occurrence of buckling due to welding. The reduction in the tendon force will decrease the tendency of the plate to buckle. thermomechanical tensioning (TMT) is an active, in-process distortion mitigation technique which reduces...

... of the classification society. The method is particularly useful in the early design stage because of its simplicity. Two trimaran hull forms (HSTT-180 and TriFerry) are selected and optimized using the multi-island genetic algorithm optimization process. The weight optimization process achieved a weight reduction...

... the implementation of TMT, a noticeable reduction in the out-of-plane distortions were observed. The influence of the sequence of lug removal on the buckling distortions was studied numerically. Fairly good agreement was obtained between experimental and numerical results. The process of TMT was found to be quite...

...Fu Yifeng; Yuan Chengqing; Bai Xiuqin; Li Tao Drag reduction by ribbed surfaces is a potentially effective strategy for reducing the energy consumption of ships. However, complicated by possible marine biofouling, it is meaningless to consider the isolated effect of drag reduction of riblets...

.... So, it is very much important to predict these buckling distortions beforehand and try to mitigate them in the fabrication stage rather than doing it later. By doing this, the competitiveness in cost and time can be increased. In this study, a numerical investigation on the reduction of buckling...

... that emissions of exhaust gases such as nitrogen oxides and aerosols such as black carbon increases rapidly due to less favorable combustion conditions. This study investigates potential emission and fuel consumption reductions, which can be achieved by introduction of hybrid technologies including their climate...

.... 1 5 2016 1 5 2016 2016 Society of Naval Architects and Marine Engineers decision support system marine transportation climate change risk management freight & logistics services co 2 evaluation Simulation price difference reduction decision-making process...

... transportation hull propeller gas turbine metals & mining gas monetization displacement washington state ferry reduction equivalent ship aluminum naval combatant Welding ferry trimaran carrier 1 freight & logistics services aluminum ship man hour application ship production hull form...

... and Marine Engineers marine transportation Efficiency oversupply ship production freight & logistics services knot shipper reduction bunker cost container ship ship Teu freight rate Revenue calculation round trip optimum speed shipowner Load Factor software consumption Journal...

...Gabor Karafiath Unlike the bow bulb, the stern end bulb (SEB) has been used on just a few ships to improve performance. In one of these rare, full-scale applications, a maximum resistance reduction in the 5% to 7% range is claimed. A few applications of SEBs are shown along with some model test...

... US government liquified natural gas LNG Downstream Oil & Gas lng tank room engine gas monetization bulk carrier Boiler ship production reduction tank Midstream Oil & Gas generator requirement conversion Upstream Oil & Gas lng fuel diesel steamship propulsion emission...

... arrangement reduction Journal of Ship Production and Design, Vol. 28, No. 1, February 2012, pp. 10 19 httpdx.doi.org/10.5957/JSPD.28.1.110014 Effect of Container Stack Arrangements on the Power Optimization of a Container Ship Khairul Hassan,* Maurice F. White, and Cosmin Ciortan *Doctoral Student...

... Architects and Marine Engineers HSSE standard Health & Medicine Industrial hygiene US government air emission welding consumable arc welding stainless steel ANSI performance objective composition particle metals & mining exposure assessment Demonstration Welding reduction...

... ship US Navy marine transportation aluminum structure coefficient ship production requirement displacement shipyard Alcoa alloy reduction equivalent ship Journal of Ship Production and Design, Vol. 27, No. 1, February 2011, pp. 35 49 The Benefits and Cost Impact of Aluminum Naval Ship...