[HTML][HTML] Wind turbine gearbox reliability verification by multivariate Gaidai reliability method

O Gaidai, H Li, Y Cao, Z Liu, Y Zhu, J Sheng - Results in Engineering, 2024 - Elsevier
Reliability research is essential since WT (Wind turbines) are built to endure high wind and
wave-induced stresses. Novel multivariate and 2D (bivariate) reliability methods presented …

[HTML][HTML] Model-free environmental contours in higher dimensions

E Mackay, G de Hauteclocque - Ocean Engineering, 2023 - Elsevier
This paper presents a method for estimating environmental contours in an arbitrary number
of dimensions. The method, referred to as Direct-IFORM, does not require a model for the …

Multivariate probability analysis of wind-wave actions on offshore wind turbine via copula-based analysis

Y Zhao, S Dong - Ocean Engineering, 2023 - Elsevier
Floating structures in service encounter extreme natural hazards, such as correlated
extreme wind-wave loads. This study aims to provide realistic multivariate models of …

Reducing conservatism in highest density environmental contours

AF Haselsteiner, E Mackay, KD Thoben - Applied Ocean Research, 2021 - Elsevier
Environmental contours are often used to define design loads acting on a marine structure.
An environmental contour describes joint extremes of variables such as wave height, wave …

The SPAR Model: A New Paradigm for Multivariate Extremes: Application to Joint Distributions of Metocean Variables

EBL Mackay… - Journal of …, 2025 - asmedigitalcollection.asme.org
This paper presents the application of a new multivariate extreme value model for the
estimation of metocean variables. The model requires fewer assumptions about the forms of …

[HTML][HTML] Full long-term extreme buffeting response calculations using sequential Gaussian process surrogate modeling

TM Lystad, A Fenerci, O Øiseth - Engineering Structures, 2023 - Elsevier
The full long-term method (FLM) provides the most accurate estimates of the long-term (ie,
10–100 years) extreme buffeting responses in the design of wind-sensitive structures …

Prediction of long-term extreme response due to non-Gaussian wind on a HSR cable-stayed bridge by a hybrid approach

Z Xu, G Dai, YF Chen, H Rao - Journal of Wind Engineering and Industrial …, 2022 - Elsevier
The effect of non-Gaussian inflows on structural long-term extreme buffeting responses has
been little investigated. In this study, the sensitivity of long-term extreme value distribution …

Modelling multivariate extremes through angular-radial decomposition of the density function

E Mackay, P Jonathan - arXiv preprint arXiv:2310.12711, 2023 - arxiv.org
We present a new framework for modelling multivariate extremes, based on an angular-
radial representation of the probability density function. Under this representation, the …

[HTML][HTML] Assessing some statistical and physical modelling uncertainties of extreme responses for monopile-based offshore wind turbines, using metocean contours

G Katsikogiannis, SK Haver… - Applied Ocean Research, 2024 - Elsevier
This study examines the influence of probabilistic models for wave parameters in the joint
environmental model and hydrodynamic/soil models on extreme mudline bending moments …

Deep learning joint extremes of metocean variables using the SPAR model

E Mackay, C Murphy-Barltrop, J Richards… - arXiv preprint arXiv …, 2024 - arxiv.org
This paper presents a novel deep learning framework for estimating multivariate joint
extremes of metocean variables, based on the Semi-Parametric Angular-Radial (SPAR) …