Results 1 to 10 of about 47,105 (164)
Vehicle Bump Testing Parameters Influencing Modal Identification of Long-Span Segmental Prestressed Concrete Bridges. [PDF]
Sensors (Basel), 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.
Hernandez W +2 more
europepmc +2 more sources
Output-Only Modal Identification of Civil Engineering Structures Based on Parametric Complexity Pursuit. [PDF]
Sensors (Basel)This paper proposes a novel parametric output-only modal identification method, termed parametric complexity pursuit (PCP), for accurate identification of modal parameters in civil engineering structures.
Li J +4 more
europepmc +2 more sources
An Energy Approach to the Modal Identification of a Variable Thickness Quartz Crystal Plate. [PDF]
Sensors (Basel)The primary objective of modal identification for variable thickness quartz plates is to ascertain their dominant operating mode, which is essential for examining the vibration of beveled quartz resonators.
Wang Z, Huang B, Guo Y, Jiang Y, Khan A.
europepmc +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
In-flight modal identification by operational modal analysis
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2023 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Elsa M. Cárdenas +3 more
openaire +2 more sources
Modality effects in word identification [PDF]
Memory & Cognition, 1974 An experiment was designed to investigate the locus of persistence of information about presentation modality for verbal stimuli. Twenty-four Ss were presented with a continuous series of 672 letter sequences for word/nonword categorization. The sequences were divided equally between words and nonwords, and each item was presented twice in the series ...
K, Kirsner, M C, Smith
openaire +2 more sources
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
Modal parameter identification of a MEMS gyroscope [PDF]
Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000 This paper reports the experimental system identification of the Jet Propulsion Laboratory microelectromechanical (MEMS) vibrational rate gyroscope. A high-order two-input/two-output transfer function for the microgyroscope is identified and mapped to a three-mode rigid plate model that reveals the orientation of important vibrational modes.
Robert T. M'Closkey +2 more
openaire +2 more sources
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