Results 21 to 30 of about 62,230 (267)

NUMERICAL AND EXPERIMENTAL CONSIDERATION OF FREQUENCY DOMAIN DECOMPOSITION METHOD FOR MODAL PARAMETERS IDENTIFICATION OF STRUCTURE [PDF]

open access: yesمجله مدل سازی در مهندسی, 2010
Classical modal testing of large structures such as bridges, towers and building is encountered with some problems such as exciting the structure and noisy environment.
محمد مهدی Khatibi   +2 more
doaj   +1 more source

Dynamic Identification as a Tool to Constrain Numerical Models for Structural Analysis of Historical Buildings

open access: yesFrontiers in Built Environment, 2020
Operational modal analysis (OMA), also known as output-only or ambient vibration test (AVT), has become in last decades a powerful approach for a wide range of applications in the field of civil engineering.
G. Lacanna   +3 more
doaj   +1 more source

Identification Method of Modal Parameters of Machine Tools Under Periodic Cutting Excitation

open access: yesIEEE Access, 2020
The dynamics of a machine tool have an important influence on the quality and efficiency of the machining process. In this paper, the modal parameters identification method of machine tools under normal cutting excitation is proposed based on the fact ...
Ling Yin   +7 more
doaj   +1 more source

Spectral analysis for modal parameters linear estimate [PDF]

open access: yes, 2020
Modal synthesis is used to generate the sounds associated with the vibration of rigid bodies, according to the characteristics of the force applied onto the object. Towards obtaining sounds of high quality, a great quantity of modes is necessary, the development of which is a long and tedious task for sound designers as they have to manually write the ...
Marco Tiraboschi   +2 more
openaire   +1 more source

Finite Element Model Updating of Axisymmetric Structures

open access: yesApplied Sciences
Creating the most accurate numerical models with the same dynamic behavior as real structures plays an important role in the development process of various facilities.
Pavol Lengvarský   +3 more
doaj   +1 more source

RESEARCH REGARDING THE MODAL PARAMETERS IDENTIFICATION FOR METALLIC STRUCTURES (II) [PDF]

open access: yesFiabilitate şi Durabilitate, 2012
Starting from the theoretical background written in [1], we present the package programs software realized by the authors for modal parameters identification of this kind of structures.
Dan ILINCIOIU   +2 more
doaj  

Parameter Study of Statistics of Modal Parameter Estimates Using Automated Operational Modal Analysis [PDF]

open access: yes
For any modal parameter estimation (MPE) method, there are a few control inputs that can have an impact on the modal parameter estimates. These control inputs are typically involving parameters like the maximum model order and how many time values or frequency lines that should be included in the MPE.
Christensen, Silas S., Brandt, Anders
openaire   +2 more sources

Operational modal analysis using symbolic regression for a nonlinear vibration system

open access: yesJournal 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

Research on improved modal parameter identification method using Hilbert-Huang transform

open access: yesMeasurement + Control, 2023
In the wind tunnel test, the full-bridge aeroelastic model needs to simulate both the shape and dynamic characteristics of the real bridge, and modal parameters are key dynamic parameters.
Mingjin Zhang   +4 more
doaj   +1 more source

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