Results 41 to 50 of about 204,378 (285)

State-of-the-art in aerodynamic shape optimisation methods [PDF]

open access: yes, 2018
Aerodynamic optimisation has become an indispensable component for any aerodynamic design over the past 60 years, with applications to aircraft, cars, trains, bridges, wind turbines, internal pipe flows, and cavities, among others, and is thus relevant ...
Skinner, S.N., Zare-Behtash, H.
core   +1 more source

Structural dynamic load prediction method based on long short-term memory network

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveTo address the limitations of traditional surrogate models in handling time-dependent dynamic processes and heterogeneous data, this paper proposes a dynamic load surrogate model method based on a long short-term memory (LSTM) network ...
Yuwei FAN   +5 more
doaj   +1 more source

Aerodynamic Optimization of Transonic Rotor Using Radial Basis Function Based Deformation and Data-Driven Differential Evolution Optimizer

open access: yesAerospace, 2022
The complicated flow conditions and massive design parameters bring two main difficulties to the aerodynamic optimization of axial compressors: expensive evaluations and numerous optimization variables. To address these challenges, this paper establishes
Yi Liu   +3 more
doaj   +1 more source

Reservoir-based surrogate modeling of dynamic user equilibrium

open access: yesTransportation Research Procedia, 2019
Abstract This paper proposes a new dynamic user equilibrium (DUE) traffic assignment model using reservoir-based network reduction techniques and surrogate dynamic network loading models. A traffic network is decomposed into a reservoir structure, and the DUE problem is formulated as a variational inequality, with an embedded surrogate model for the ...
Qian Ge   +3 more
openaire   +1 more source

The Data-Driven Surrogate Model-Based Dynamic Design of Aeroengine Fan Systems [PDF]

open access: yesJournal of Engineering for Gas Turbines and Power, 2020
Abstract High-cycle fatigue failures of fan blade systems due to vibrational loads are of great concern in the design of aeroengines, where energy dissipation by the relative frictional motion in the dovetail joints provides the main damping to mitigate the vibrations.
Zhu, Yun-Peng   +5 more
openaire   +6 more sources

Surrogate modeling of vehicle dynamics using Recurrent Neural Networks

open access: yesTransactions of the JSME (in Japanese), 2020
Computer Aided Engineering (CAE) is indispensable for vehicle design to reduce the development cost; however, its computation time is a heavy burden when tuning design parameters. In this respect, several studies have been carried out for replacing CAE with machine learning-based surrogate models.
Kohei MAKINO   +4 more
openaire   +3 more sources

Design Optimization Utilizing Dynamic Substructuring and Artificial Intelligence Techniques [PDF]

open access: yes, 2008
In mechanical and structural systems, resonance may cause large strains and stresses which can lead to the failure of the system. Since it is often not possible to change the frequency content of the external load excitation, the phenomenon can only be ...
Akcay Perdahcioglu, D.   +3 more
core   +1 more source

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

Metamodeling the optimal total revenues of the short-term optimization of a hydropower cascade under uncertainty

open access: yesScience and Technology for Energy Transition, 2023
This paper deals with the optimization of the short-term production planning of a real cascade of run-of-river hydropower plants. Water inflows and electricity prices are subject to data uncertainty and they are modeled by a finite set of joint scenarios.
Piguet Antoine   +4 more
doaj   +1 more source

Replication or exploration? Sequential design for stochastic simulation experiments

open access: yes, 2019
We investigate the merits of replication, and provide methods for optimal design (including replicates), with the goal of obtaining globally accurate emulation of noisy computer simulation experiments.
Binois, Mickael   +3 more
core   +2 more sources

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