نتایج جستجو برای: jacket offshore platform
تعداد نتایج: 157925 فیلتر نتایج به سال:
Abstract The strength of the jacket substructure on a fixed offshore platform is dictated by tubular connecting leg and braces. accuracy static calculation joint very important to ensure integrity structure during its operation. Therefore, as Recommended Practice, API RP 2A WSD always regularly was updated based results latest research obtain more accurate in analysis joint. This paper discusse...
1. Albiez M., Damm J., Ummenhofer T., Kaufmann Vallée Myslicki S., 2022, Hybrid joining of jacket structures for offshore wind turbines – Determination requirements and adhesive characterisation, Engineering Structures, 259, 114186. CrossRef Google Scholar
Installation of jacket platforms requires simultaneous and combined operations multiple assets. Once the whole process has to be planned, it is necessary predict in a fast reliable way possible weather limitations that may occur during operations. The paper will present major challenges this unusual innovative Dynamic Positioning analysis which been carried out for Ana Jacket installation. obta...
For structural reliability assessment or risk analysis of aging offshore steel structures, it is essential to have a probabilistic model, which contains specific statistical parameters, and predicts long term corrosion loss as a function of time. The aim of this study is to propose such model for offshore jacket platforms in the Persian Gulf. Field measurements for material loss due to uniform ...
Keywords: KP–BBM-II equations Crank–Nicholson method Finite difference scheme Convergence Stability a b s t r a c t In this paper, the finite difference method is employed to solve Kadomtsev–Petviashvili– Benjamin–Bona–Mahony II (KP–BBM-II) partial differential equations. The time and space variable are discretized by the Crank–Nicholson method and the central-difference scheme, respectively. T...
In this research, the response of fixed offshore platforms equipped with shape memory alloy elements at the different depths under extreme wave loading are taken into account. For this purpose platforms located in different water depths 70, 110 and 150 has been considered. At first for evaluation of the nonlinear behavior of three platforms, pushover analysis using SACS has been engaged. Then n...
Reset controllers are commonly used to smooth the transient response of systems. We use this technique to improve a standard baseline pitch controller for offshore wind turbines (WTs). The introduction of this strategy enhances the overall performance of the WT. In particular, the fore-aft and side-to-side accelerations of the WT tower are significantly reduced, whilst a steadier power output i...
Launching method is commonly applied for installation of heavy template (jacket) platforms. One of the important phases in design and construction of offshore platforms is launching condition. This will insure the safty of the procedure and will optimize the weight of the related members of the jacket. In this article, effective factors and amount of forces that applied on steel jacket during l...
when a jack-up installed at a clay location and then leaves; it can create several meter deep footprints. in case of soft clay, the spudcan may have actually penetrated much deeper than the observed footprints. when the penetrated spudcan is pulled out, much of the soft remolded clay will flow around it and go back into the hole. this event, leaving a deep region of disturbed soil. the disturbe...
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