Mutual information based anomaly detection of monitoring data with attention mechanism and residual learning

X Lei, Y Xia, A Wang, X Jian, H Zhong, L Sun - Mechanical Systems and …, 2023 - Elsevier
Due to the damage of sensors or transmission equipment, abnormal monitoring data
inevitably exists in the measured raw data, and it significantly impacts the condition …

Quantification, localization, and reconstruction of impact force on interval composite structures

Y Liu, L Wang - International Journal of Mechanical Sciences, 2023 - Elsevier
Impact force identification has been intensively studied owing to its profound effects on
health monitoring and safety assessment. This study investigates a novel uncertainty …

Impact force reconstruction and localization using Distance-assisted Graph Neural Network

C Huang, C Tao, H Ji, J Qiu - Mechanical Systems and Signal Processing, 2023 - Elsevier
In this paper, a novel impact force identification method named Distance-assisted Graph
Neural Network (DAGNN) is proposed for simultaneous force localization and force history …

Impact identification of composite cylinder based on improved deep metric learning model and weighted fusion Tikhonov regularized total least squares

S Li, G Peng, M Ji, F Cheng, Z Chen, Z Li - Composite Structures, 2022 - Elsevier
Composite materials are widely used in aerospace field due to the characteristics of light
weight and high strength. As the composites are prone to internal damage that is not visible …

Localization of cyclostationary acoustic sources via cyclostationary beamforming and its high spatial resolution implementation

C Zhang, R Wang, L Yu, Y Xiao, Q Guo, H Ji - Mechanical Systems and …, 2023 - Elsevier
The localization of cyclostationary sound sources is important for rotating machinery noise
source identification and fault diagnosis. Cyclostationary sound sources are a special class …

An intelligent impact load identification and localization method based on autonomic feature extraction and anomaly detection

C Guo, L Jiang, F Yang, Z Yang, X Zhang - Engineering Structures, 2023 - Elsevier
The main problems of impact load identification are the complexity of dynamic data and the
establishment of theoretical model. This paper proposed an intelligent impact load …

An adaptive parameter optimization algorithm for simultaneous identification of force location and history with sparse calibration array

Y Qiu, H Ji, C Tao, C Zhang, J Qiu - Engineering Structures, 2023 - Elsevier
An adaptive parameter optimization algorithm (APOA) is proposed for simultaneous force
history and location identification in this work. Because extensive calibrations are time …

Implicit inverse force identification method for vibroacoustic finite element model

S Oh, C Ahn, K Ahn, JG Kim - Journal of Sound and Vibration, 2023 - Elsevier
The two-field vibroacoustic finite-element (FE) model requires a relatively large number of
degrees of freedom compared to the monophysics model, and the conventional force …

Vehicle weight identification based on equivalent loads reconstructed from responses of beam-like bridge

P Chudong, Z Liwen, Y Xijun, S Zhuo - Journal of Sound and Vibration, 2022 - Elsevier
Moving force identification (MFI) is an effective way for closely monitoring vehicle weight in a
dynamic state. Time-varying position of vehicle is usually needed. This applying condition …

Integrating L1 and weighted L2 regularization for moving force identification from combined response measurements

Z Hou, L Yu, Y Liang, B Xu, Y Lei - Measurement, 2024 - Elsevier
Existing regularization methods have been proven effective in the ill-posed problem of
moving force identification (MFI). However, both the constant and time-varying components …