Results 31 to 40 of about 16,437,397 (288)

A finite element model updating method for aqueduct structures based on Bayesian theory

open access: yesShuili Shuiyun Gongcheng Xuebao
The structural condition of aqueducts changes over time due to various influencing factors. Consequently, parameters used in finite element analysis may not reflect the real-time state of the structure.
WU Xijie   +4 more
doaj   +1 more source

Finite element model updating with quantified uncertainties using point cloud data

open access: yesData-Centric Engineering, 2023
While finite element (FE) modeling is widely used for ultimate strength assessments of structural systems, incorporating complex distortions and imperfections into FE models remains a challenge.
William Graves   +3 more
doaj   +1 more source

Finite element modelling and updating of friction stir welding (FSW) joint for vibration analysis

open access: yesMATEC Web of Conferences, 2017
Friction stir welding of aluminium alloys widely used in automotive and aerospace application due to its advanced and lightweight properties. The behaviour of FSW joints plays a significant role in the dynamic characteristic of the structure due to its ...
Zahari Siti Norazila   +2 more
doaj   +1 more source

Frequency Response Function-Based Finite Element Model Updating Using Extreme Learning Machine Model

open access: yesShock and Vibration, 2020
A frequency response function- (FRF-) based surrogate model for finite element model updating (FEMU) is presented in this paper. Extreme learning machine (ELM) is introduced as the surrogate model of the finite element model (FEM) to construct the ...
Yu Zhao, Zhenrui Peng
doaj   +1 more source

Dual approaches to finite element model updating

open access: yesJournal of Computational and Applied Mathematics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

MCRE-based finite element model updating: Cast3M implementation

open access: yesAdvances in Engineering Software, 2022
In structural engineering, the search for computational models capable of making realistic predictions capturing varied physical phenomena while maintaining simplicity and reliability has gained wide attention of the scientific community. Some outcomes of this effort are the finite element model updating techniques, which consists of using inverse ...
Oliveira, Hugo Luiz   +2 more
openaire   +1 more source

Parameter Updating of Helicopter Airframe Finite Element Model Based on Response Surface Method

open access: yesNanjing Hangkong Hangtian Daxue Xuebao
In order to reduce the deviation between the finite element model of helicopter airframe and the actual model, a helicopter airframe model updating method based on the response surface method is adopted, which uses a hypersurface function to ...
ZHU Yin, HAN Dong
doaj   +1 more source

An improved spectral decomposition flexibility perturbation method for finite element model updating

open access: yesAdvances in Mechanical Engineering, 2018
Finite element analysis is the most powerful tool to predict the behavior of a structure in engineering practice. Generally, the initial finite element model must be corrected with experimental data due to its complexity.
QW Yang, BX Sun, C Lu
doaj   +1 more source

Transfer Learning Based Method for Frequency Response Model Updating with Insufficient Data

open access: yesSensors, 2020
Finite element model updating precision depends heavily on sufficient vibration feature extraction. However, adequate amount of sample collection is generally time-consuming in frequency response (FR) model updating. Accurate vibration feature extraction
Zhongmin Deng, Xinjie Zhang, Yanlin Zhao
doaj   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

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