Results 1 to 10 of about 15,502 (266)
Uncertainty-Based Fusion Method for Structural Modal Parameter Identification [PDF]
SensorsThe structural modal parameter identification method can be classified into time-domain and frequency-domain methods. Practically, two types of methods are characterized by different advantages, and the estimated modal parameters are always subjected to ...
Xiaoteng Liu +4 more
doaj +2 more sources
Modal parameter identification from output data only [PDF]
MATEC Web of Conferences, 2015 To identify the modal parameters of a vibrating system from output data only we use a state space model and usually two approaches are considered: the block Hankel matrix and its shifted version and the block observability matrix and its shifted version.
Lardiès Joseph
doaj +2 more sources
Advances in Civil Engineering, 2021 Modal parameters are important parameters for the dynamic response analysis of structures. An output-only modal parameter identification technique based on Hilbert Vibration Decomposition (HVD) is developed herein for structural modal parameter ...
Yingzhi Xia +3 more
doaj +1 more source
Evaluation and Analysis of Bridge Modal Parameters Under Intelligent Monitoring Environment
Frontiers in Ecology and Evolution, 2022 After the bridge is completed, the structural materials will be gradually eroded or aged under the influence of climate, temperature, and building environment.
Tao Wang +3 more
doaj +1 more source
Shock and Vibration, 2021 Modal parameter identification is considered to be one of the most important tasks in structural health monitoring because it provides a reliable reference for structural vibration control, damage severity, and operational state.
Peng Wen +3 more
doaj +1 more source
Measurement + Control, 2021 In the wind tunnel test of a long-span bridge model, to ensure that the dynamic characteristics of the model can satisfy the test design requirements, it is particularly important to accurately identify the modal parameters of the model.
Yulin Zhou +5 more
doaj +1 more source
Mathematics, 2023 The dynamic response transfer rate function (TRF) is increasingly used in the field of structural modal parameter identification because it does not depend on the white noise assumption of the excitation.
Yanxin Xu +4 more
doaj +1 more source
Operational modal analysis using symbolic regression for a nonlinear vibration system
Journal of Low Frequency Noise, Vibration and Active Control, 2021 The existence of nonlinearity is an inevitable frequent occurrence that should be considered to accurately identify the modal parameters of a vibration system using operational modal analysis.
Xuchu Jiang, Feng Jiang
doaj +1 more source
Sensors, 2023 The primary purpose of this research is to evaluate the uncertainty associated with modal parameter estimation for an inverse dynamic problem in which the structural parameters are random. The random nature of the structure’s parameters will be reflected
Swarup Mahato +2 more
doaj +1 more source
Improved Continuous Wavelet Transform for Modal Parameter Identification of Long-Span Bridges
Shock and Vibration, 2020 Accurate and timely identification of modal parameters of long-span bridges is important for bridge health monitoring and wind tunnel tests. Wavelet analysis is one of the most advantageous methods for identification because of its good localization ...
Mingjin Zhang +5 more
doaj +1 more source