Dynamic load identification for mechanical systems: A review

R Liu, E Dobriban, Z Hou, K Qian - Archives of Computational Methods in …, 2022 - Springer
Due to the great challenges of measuring forces directly, identifying dynamic loads based on
accessible responses is a crucial problem in engineering, helping ensure integrity and …

An efficient method to reduce ill-posedness for structural dynamic load identification

J Liu, X Meng, D Zhang, C Jiang, X Han - Mechanical Systems and Signal …, 2017 - Elsevier
For the inverse problem of structural dynamic load identification, high system ill-posedness
is a main cause leading to instability and low accuracy. In this study, an efficient interpolation …

A new conjugate gradient method for moving force identification of vehicle–bridge system

C Luo, L Wang, Y Xie, B Chen - Journal of Vibration Engineering & …, 2024 - Springer
A new preconditioned modified conjugate gradient algorithm based on improved gradient
operator and preconditioned technology is proposed for moving force identification of bridge …

Impact load identification of nonlinear structures using deep Recurrent Neural Network

JM Zhou, L Dong, W Guan, J Yan - Mechanical Systems and Signal …, 2019 - Elsevier
In this paper, a novel impact load identification method of nonlinear structures by using deep
Recurrent Neural Network (RNN) is proposed. The deep RNN model, mainly consisting of …

Moving force identification based on redundant concatenated dictionary and weighted l1-norm regularization

CD Pan, L Yu, HL Liu, ZP Chen, WF Luo - Mechanical Systems and Signal …, 2018 - Elsevier
Moving force identification (MFI) is an important inverse problem in the field of bridge
structural health monitoring (SHM). Reasonable signal structures of moving forces are rarely …

Sparse regularization for force identification using dictionaries

B Qiao, X Zhang, C Wang, H Zhang, X Chen - Journal of Sound and …, 2016 - Elsevier
The classical function expansion method based on minimizing l 2-norm of the response
residual employs various basis functions to represent the unknown force. Its difficulty lies in …

Sparse deconvolution for the large-scale ill-posed inverse problem of impact force reconstruction

B Qiao, X Zhang, J Gao, R Liu, X Chen - Mechanical Systems and Signal …, 2017 - Elsevier
Most previous regularization methods for solving the inverse problem of force reconstruction
are to minimize the l 2-norm of the desired force. However, these traditional regularization …

A truncated generalized singular value decomposition algorithm for moving force identification with ill-posed problems

Z Chen, THT Chan - Journal of Sound and Vibration, 2017 - Elsevier
This paper proposes a new methodology for moving force identification (MFI) from the
responses of bridge deck. Based on the existing time domain method (TDM), the MFI …

An enhanced sparse regularization method for impact force identification

B Qiao, J Liu, J Liu, Z Yang, X Chen - Mechanical Systems and Signal …, 2019 - Elsevier
The standard sparse regularization method based on l 1-norm minimization for impact force
identification has already proved to be an interesting alternative to the classical …

Group sparse regularization for impact force identification in time domain

B Qiao, Z Mao, J Liu, Z Zhao, X Chen - Journal of Sound and Vibration, 2019 - Elsevier
Impact force identification remains a challenging inverse problem, where a small error in
structural responses may lead to a large deviation in the actual solution. Recently, sparse …