Fundamental mode shape estimation and element stiffness evaluation of girder bridges by using passing tractor-trailers
Y Yang, H Lu, X Tan, HK Chai, R Wang… - Mechanical Systems and …, 2022 - Elsevier
A comprehensive indirect method is proposed in this study to estimate the dynamic
characteristics of the fundamental mode and evaluate the element stiffness of a girder bridge …
characteristics of the fundamental mode and evaluate the element stiffness of a girder bridge …
Using a single-DOF test vehicle to simultaneously retrieve the first few frequencies and damping ratios of the bridge
Bridge damping ratios are extracted via the skillful use of the single-degree-of-freedom
(DOF) test vehicle for the first time in this paper. Central to the simultaneous retrieval of the …
(DOF) test vehicle for the first time in this paper. Central to the simultaneous retrieval of the …
Output-only modal identification based on the variational mode decomposition (VMD) framework
This paper proposes a novel modal identification variational mode decomposition (MIVMD)
for output-only modal identification (OMI). The proposed MIVMD is more direct and elegant …
for output-only modal identification (OMI). The proposed MIVMD is more direct and elegant …
Bridge modal identification based on successive variational mode decomposition using a moving test vehicle
Bridge modal identification using an instrumented test vehicle as a moving sensor is
promising but challenging. A key factor is to extract bridge dynamic components from vehicle …
promising but challenging. A key factor is to extract bridge dynamic components from vehicle …
An improved local maximum synchrosqueezing transform with adaptive window width for instantaneous frequency identification of time-varying structures
L Tang, XQ Shang, TL Huang, NB Wang, WX Ren - Engineering Structures, 2023 - Elsevier
Civil engineering structures usually exhibit time-varying characteristics under operational
conditions due to changes in environment and loads. The identification of instantaneous …
conditions due to changes in environment and loads. The identification of instantaneous …
Automated method for structural modal identification based on multivariate variational mode decomposition and its applications in damage characteristics of subway …
This paper introduces a fully automated modal identification algorithm based on the
Multivariate Variational Mode Decomposition (MVMD) of free vibration responses to …
Multivariate Variational Mode Decomposition (MVMD) of free vibration responses to …
Probabilistic damage detection and identification of coupled structural parameters using Bayesian model updating with added mass
Damage detection inevitably involves uncertainties originated from measurement noise and
modeling error. It may cause incorrect damage detection results if not appropriately treating …
modeling error. It may cause incorrect damage detection results if not appropriately treating …
Limited sensor-based bridge condition assessment using vehicle-induced nonstationary measurements
Retrofitting and maintenance of bridges using vehicle-induced measurements have
attracted increasing attention in the field of vibration-based bridge health monitoring. In this …
attracted increasing attention in the field of vibration-based bridge health monitoring. In this …
Piezo sensor based multiple damage detection under output only structural identification using strain modal flexibility
Strain, being superiorly sensitive towards damage, has been widely explored in modal
testing based damage monitoring. Piezo sensors have been successfully evaluated for their …
testing based damage monitoring. Piezo sensors have been successfully evaluated for their …
A novel real-time modal analysis method for operational time-varying structural systems based on short-time extension of multivariate VMD
Engineering structures often exhibit time-varying characteristics due to environmental
erosion or working conditions during their service life. Therefore, time-varying modal …
erosion or working conditions during their service life. Therefore, time-varying modal …