Force localization and reconstruction using a two-step iterative approach

Q Li, Q Lu - Journal of Vibration and Control, 2018 - journals.sagepub.com
In this paper, we propose a two-step iterative approach to both localize and reconstruct a
single point force acting on a structure. Since force reconstruction problems are typically ill …

Time domain force localization and reconstruction based on hierarchical Bayesian method

W Feng, Q Li, Q Lu, B Wang, C Li - Journal of Sound and Vibration, 2020 - Elsevier
In engineering practice, localization and reconstruction of external excitations is a tough
problem in absence of prior knowledge. Traditional regularization approaches require …

Force localization and reconstruction based on a novel sparse Kalman filter

W Feng, Q Li, Q Lu - Mechanical Systems and Signal Processing, 2020 - Elsevier
Most of existing methods for force identification assume the force locations to be known a
priori. In this paper, we propose a novel recursive algorithm, named sparse Kalman filter, to …

An efficient impact force identification methodology via a single sensor utilizing the concept of generalized transmissibility

L Zhang, M Liu, L Hong, Z Wang, Z Zhou… - Mechanical Systems and …, 2024 - Elsevier
The issue of localizing and reconstructing the impact force through double-inverse
approaches is widely recognized as an ill-posed and computationally demanding problem …

A space-frequency multiplicative regularization for force reconstruction problems

M Aucejo, O De Smet - Mechanical Systems and Signal Processing, 2018 - Elsevier
Dynamic forces reconstruction from vibration data is an ill-posed inverse problem. A
standard approach to stabilize the reconstruction consists in using some prior information on …

An improved method for the reconstruction of a distributed force acting on a vibrating structure

Y Liu, WS Shepard Jr - Journal of sound and vibration, 2006 - Elsevier
Indirectly reconstructing distributed forces from measured structural response is necessary
when the direct measurement of these dynamic forces is not possible. An improved method …

Matrix regularization-based method for large-scale inverse problem of force identification

C Pan, X Ye, J Zhou, Z Sun - Mechanical Systems and Signal Processing, 2020 - Elsevier
Identification of force via structural responses has been widely studied due to the force is
always difficult or even impossible to be measured directly. Force identification is a typical ill …

Force identification under unknown initial conditions by using concomitant mapping matrix and sparse regularization

X Ye, C Pan - Journal of Vibration and Control, 2021 - journals.sagepub.com
Unknown initial conditions can affect the identified accuracy of dynamic forces. Direct
measurement of initial conditions is relatively difficult. This study proposes a sparse …

Localization of dynamic forces on structures with an interior point method using group sparsity

J Wambacq, K Maes, A Rezayat, P Guillaume… - … Systems and Signal …, 2019 - Elsevier
This paper presents an algorithm for the localization of forces applied to a structure. The
force estimation is performed in the frequency domain based on a limited number of sensors …

Local force identification on flexural plates using reduced Finite Element models

C Renzi, C Pézerat, JL Guyader - Computers & Structures, 2014 - Elsevier
The identification of excitations on plates by an inverse method using local Finite Element
modeling is studied. A dynamic condensation is proposed in order to eliminate Degrees Of …