Hyperparameter-optimized multi-fidelity deep neural network model associated with subset simulation for structural reliability analysis

JPS Lima, F Evangelista Jr, CG Soares - Reliability Engineering & System …, 2023 - Elsevier
The present study proposes a two-stage Bi-Fidelity Deep Neural Network surrogate model to
quantify the uncertainty of structural analysis using low-fidelity data samples added to the …

Multi-fidelity surrogate modeling for temperature field prediction using deep convolution neural network

Y Zhang, Z Gong, W Zhou, X Zhao, X Zheng… - … Applications of Artificial …, 2023 - Elsevier
Temperature field prediction is of great importance in the thermal design of systems
engineering, and building a surrogate model is an effective method for the task. Ensuring a …

Embedding prior knowledge into data-driven structural performance prediction to extrapolate from training domains

SZ Chen, SY Zhang, DC Feng… - Journal of Engineering …, 2023 - ascelibrary.org
Abstract Machine learning (ML)–based data-driven approaches have become increasingly
prevalent for predicting structural performance. Because a properly trained ML model can …

Multi-fidelity prediction of fluid flow based on transfer learning using Fourier neural operator

Y Lyu, X Zhao, Z Gong, X Kang, W Yao - Physics of Fluids, 2023 - pubs.aip.org
Data-driven prediction of laminar flow and turbulent flow in marine and aerospace
engineering has received extensive research and demonstrated its potential in real-time …

[HTML][HTML] A multi-fidelity deep operator network (DeepONet) for fusing simulation and monitoring data: Application to real-time settlement prediction during tunnel …

C Xu, BT Cao, Y Yuan, G Meschke - Engineering Applications of Artificial …, 2024 - Elsevier
Ground settlement prediction during mechanized tunneling is of paramount importance and
remains a challenging research topic. Typically, two paradigms are existing: a physics …

[HTML][HTML] Point-enhanced convolutional neural network: A novel deep learning method for transonic wall-bounded flows

F Tejero, S Sureshbabu, L Boscagli… - Aerospace Science and …, 2024 - Elsevier
Low order models can be used to accelerate engineering design processes. Ideally, these
surrogates should meet the conflicting requirements of large design space coverage, high …

Multi-fidelity neural optimization machine for Digital Twins

J Chen, C Meng, Y Gao, Y Liu - Structural and Multidisciplinary …, 2022 - Springer
Abstract Digital Twins (DTs) are widely used for design, manufacturing, prognostics, and
decision support for operations. One critical challenge in optimizing DTs usually involves …

Introducing a microstructure-embedded autoencoder approach for reconstructing high-resolution solution field data from a reduced parametric space

RN Koopas, S Rezaei, N Rauter, R Ostwald… - arxiv preprint arxiv …, 2024 - arxiv.org
In this study, we develop a novel multi-fidelity deep learning approach that transforms low-
fidelity solution maps into high-fidelity ones by incorporating parametric space information …

A Latent Variable Approach for Non-Hierarchical Multi-Fidelity Adaptive Sampling

YP Chen, L Wang, Y Comlek, W Chen - Computer Methods in Applied …, 2024 - Elsevier
Multi-fidelity (MF) methods are gaining popularity for enhancing surrogate modeling and
design optimization by incorporating data from both high-and various low-fidelity (LF) …

Multi-fidelity deep learning for aerodynamic shape optimization using convolutional neural network

G Tao, C Fan, W Wang, W Guo, J Cui - Physics of Fluids, 2024 - pubs.aip.org
Aerodynamic shape design is essential for improving aircraft performance and efficiency.
First, this study introduces a data-driven optimization framework utilizing a multi-fidelity …