Results 11 to 20 of about 15,502 (266)
Applied Sciences, 2021 A method of modal parameter identification of structures using reconstructed displacements was proposed in the present research. The proposed method was developed based on the stochastic subspace identification (SSI) approach and used reconstructed ...
Xiangying Guo +3 more
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Comparison of Different Independent Component Analysis Algorithms for Output-Only Modal Analysis
Shock and Vibration, 2016 From the principle of independent component analysis (ICA) and the uncertainty of amplitude, order, and number of source signals, this paper expounds the root reasons for modal energy uncertainty, identified order uncertainty, and modal missing in output-
Jianying Wang +3 more
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Improvement of ITD Algorithm Based on Modal Parameter Identification [PDF]
Jisuanji gongcheng, 2017 The pre-processing and system order determination of Intrinsic Time-scale Decomposition(ITD) algorithm involve some human factors,which causes error on extraction of modal parameters,and ITD algorithm is also sensitive to noise.To solve these problems,an
LI Yugang,YE Qingwei,ZHOU Yu,WANG Xiaodong
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Modal identification of cylindrical shell using circumference reduction method
Nihon Kikai Gakkai ronbunshu, 2015 For precision improvement of the noise prediction, the dynamic characteristics of structures need to be verified. This paper focuses on modal identification of the cylindrical shell structures.
Atsushi KITAHARA, Takuya YOSHIMURA
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Research on improved modal parameter identification method using Hilbert-Huang transform
Measurement + 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
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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.
M'Closkey, RT, Gibson, S, Hui, J
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Dynamic Parameter Identification of Hydrodynamic Bearing-Rotor System
Shock and Vibration, 2015 A new method called modal parameter genetic time domain identification was employed to study the characteristics of the bearing-rotor system. A multifrequency signal decomposition technology to identify the main components of the measured signal and ...
Zhiqiang Song, Yunhe Liu
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Shock and Vibration, 2020 The measured frequency response functions (FRFs) in the modal test are usually contaminated with noise that significantly affects the modal parameter identification.
Tianxu Zhu, Chaoping Zang, Gengbei Zhang
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Synthetical Modal Parameters Identification Method of Damped Oscillation Signals in Power System
Applied Sciences, 2022 It is vital to improve the stability of the power system by accurately identifying the modal parameters of damped low-frequency oscillations (DLFO) and controlling the oscillation in time.
Huan Li +3 more
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Shock and Vibration, 2018 This article presents a time-varying modal parameter identification method based on the novel information criterion (NIC) algorithm and a post-process method for time-varying modal parameter estimation.
Haotian Zhou +4 more
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