Results 1 to 10 of about 50,905 (117)
Vehicle Bump Testing Parameters Influencing Modal Identification of Long-Span Segmental Prestressed Concrete Bridges [PDF]
Sensors, 2022 In-service prestressed concrete box girder bridges have received increasing attention in recent years due to a large number of bridges reaching decades in service.
Wilson Hernandez +2 more
doaj +2 more sources
Identification of Dynamic Characteristics of High-Rise Buildings Considering the Influence of Modal Direction [PDF]
SensorsThe structural dynamic characteristics of super high-rise buildings are key to understanding how they respond to wind-induced vibration. Currently, one widely adopted method involves using vibration sensors to capture structural vibration responses ...
Yinghou He +5 more
doaj +2 more sources
Comparative Performance Assessment of Fiber Bragg Grating Sensors and PCB Accelerometers for Field-Based Dynamic Characterization of Stay Cables [PDF]
SensorsStay cables are critical components of cable-stayed bridges, and their dynamic characteristics provide essential information for vibration assessment and structural health monitoring.
Do Hong Phuc +5 more
doaj +2 more sources
High-Speed Railway, 2023 Modal and damage identification based on ambient excitation can greatly improve the efficiency of high-speed railway bridge vibration detection. This paper first describes the basic principles of stochastic subspace identification, peak-picking, and ...
Jiahuan Li +3 more
doaj +1 more source
Performance Evaluation of Blind Modal Identification in Large-Scale Civil Infrastructure
Infrastructures, 2022 The monitoring and maintenance of existing civil infrastructure has recently received worldwide attention. Several structural health monitoring methods have been developed, including time-, frequency-, and time–frequency domain methods of modal ...
Ali Abasi, Ayan Sadhu
doaj +1 more source
IEEE Access, 2021 Various modal identification methods for interarea modes have been developed to improve identification accuracy by overcoming the measurement noise in ambient data of phasor measurement units (PMUs).
Jin Kwon Hwang, Jeonghoon Shin
doaj +1 more source
Wooden Beams Modal Damage Identification Parameters Based on Strain
Buildings, 2023 This study completely investigates the damage detection problem based on strain modal characteristics using simply supported wooden beams as the research object. First, modal analysis was performed, and finite element models of both damaged and undamaged
Yu Cao +6 more
doaj +1 more source
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
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
Sensors, 2023 To improve communication stability, more wireless devices transmit multi-modal signals while operating. The term ‘modal’ refers to signal waveforms or signal types. This poses challenges to traditional specific emitter identification (SEI) systems, e.g.,
Miyi Zeng +4 more
doaj +1 more source