Multivariate Gaidai reliability methodology for marine riser dynamics in the Red Sea with memory effects included

Ocean Engineering, Год журнала: 2024, Номер 313, С. 119437 - 119437

Опубликована: Окт. 13, 2024

Язык: Английский

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Gaidai multimodal risk evaluation methodology based on cargo vessel onboard measurements, given structural damage accumulation

Deleted Journal, Год журнала: 2024, Номер 1(1)

Опубликована: Окт. 23, 2024

Intercontinental transportation relies heavily on medium-to-large cargo vessels, constituting an essential component of the global trade. Thus, it is paramount importance for trading companies, engineers, designers to advance innovative, economically viable logistical and structural schemes, that are safe reliable. Full-scale onboard recorded data, when available, serves as valuable diagnostic tool hard overestimate. An operating medium-size ship TEU2800 had been selected current investigation. hull dynamics by excessive deck panel strains, occurring during ship's intercontinental sailings through potentially adverse weather conditions. Inherent risks damaging vessel losing containers, caused motions/loads, being one primary concerns industry. Primary novelty this investigation twofold: first, a unique measured representative dataset analyzed; second, novel multimodal reliability methodology employed analyzed raw data. Presented study advocates state-of-the-art Gaidai spatiotemporal assessment methodology, enabling conservative hazard/damage/failure risk forecasting nonstationary, nonlinear, dynamics, under accumulated fatigue damage. Note advocated evaluation generic nature may be straightforwardly applied wide range contemporary complex naval, offshore, marine systems, hence not limited vessels only.

Язык: Английский

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Bivariate validation of the Gaidai natural hazard evaluation method for climate dynamics

Ocean Engineering, Год журнала: 2024, Номер 313, С. 119630 - 119630

Опубликована: Окт. 30, 2024

Язык: Английский

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Gaidai risks evaluation method for lifetime assessment for offshore floating wind turbine gearbox

Journal of Nondestructive Evaluation Diagnostics and Prognostics of Engineering Systems, Год журнала: 2024, Номер 8(2)

Опубликована: Авг. 30, 2024

Abstract Renewable clean energy in some cases may be viewed as an alternative to limited fossil resources. Offshore floating wind turbines (FWTs) are among the most attractive green alternatives. However, FWTs, particular their essential components, sustain structural damages from cyclic loads brought on by torque, bending, longitudinal loadings, well twisting moments. Multibody simulation tool SIMPACK was utilized assess bending moments and internal forces occurring within FWT drivetrain during its field operation. The novel risk damage evaluation method advocated current study is intended serve contemporary design, enabling accurate assessments of lifespan distribution, given situ environmental/field conditions. approach described analyze complex multidimensional sustainable systems, subjected excessive stressors service life. Contemporary approaches, dealing with systems not always well-suited for handling dynamic system's high dimensionality, aggravated nonlinear cross-correlations between nonstationary loadings. advocates a general-purpose lifetime assessment methodology, having wide area potential engineering design applications, offshore wind/wave renewable systems. Key advantages methodology lie robust ability risks environmental virtually unlimited number system components (dimensions), along further incorporate real time. Note that author's knowledge, there no comparable methods can deal utilizing raw/unfiltered simulated/measured datasets, beyond one or two-dimensional systems—except computationally expensive direct Monte Carlo (MC) simulations.

Язык: Английский

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Multimodal Gaidai State‐of‐the‐Art Limit Hypersurface Methodology for Container Vessels With Multiple Failure Modes

IET Intelligent Transport Systems, Год журнала: 2025, Номер 19(1)

Опубликована: Янв. 1, 2025

ABSTRACT This case study presents state‐of‐the‐art, multimodal structural reliability and risk evaluation methodology, particularly suitable for naval architecture, transportation marine engineering applications. Existing methods do not easily tackle systems with a number of critical components higher than 2, while the advocated methodology has no limitations on system's dimensions, parts or components. The 4400 TEU container vessel's onboard measured deck panel stresses raw data, collected during numerous trans‐Atlantic crossings, was analysed. Risk ship hull damage caused by excessive whipping (slamming springing) wave loads, representing types highly nonlinear wave‐induced vibrations, are among primary safety concerns contemporary industry. It is often challenging to accurately forecast hot‐spot stresses, possessing complex nonlinear, nonstationary properties. proposed hypersurface method fully accounts large components, as well dynamic nonlinearities. Lab testing may be disputed, obtained measurements will depend biased incident properties model scales. As result, dataset, from particular cargo ship, operating in North Atlantic provides especially valuable insights into an overall vessel durability reliability. investigation aimed at providing generic state‐of‐the‐art enabling accurate extraction pertinent information about dynamics, e.g., derived sensor‐recorded time histories. Utilising failure, hazard risks effectively yet forecasted, based spatially distributed stresses. presented hazards systems, having virtually unlimited numbers principal/key made use full scale kindly provided Det Norske Veritas, Oslo, Norway (DNV), which commercially its own.

Язык: Английский

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Emotional excess by multimodal Gaidai prognostics methodology, accounting for memory effects

Computers in Biology and Medicine, Год журнала: 2025, Номер 192, С. 110383 - 110383

Опубликована: Май 16, 2025

Язык: Английский

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HIV deathrate prediction by Gaidai multivariate risks assessment method

Immunity Inflammation and Disease, Год журнала: 2024, Номер 12(10)

Опубликована: Окт. 1, 2024

HIV is a contagious disease with reportedly high transmissibility, being spread worldwide, certain mortality, allegedly presenting burden to public health worldwide. The main objective of this study was determine excessive death risks at any time within region or country interest.

Язык: Английский

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Human collective emotional excess by novel Gaidai hypersurface risk prognostics methodology

Journal Of Big Data, Год журнала: 2025, Номер 12(1)

Опубликована: Май 20, 2025

Язык: Английский

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Novel Gaidai multivariate structural design concept for wind turbine gearbox, under the accumulation of fatigue damage

Next research., Год журнала: 2025, Номер unknown, С. 100433 - 100433

Опубликована: Май 1, 2025

Язык: Английский

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Floating wind turbine drivetrain multidimensional reliability evaluation by Gaidai hypersurface methodology

Journal of industrial safety., Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

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