Results 11 to 20 of about 4,345,353 (297)
Methods for modal parameters identification applied to CNC machine tool feed drives [PDF]
The paper presents a critical appraisal of existing methods for the identification of modal parameters (natural frequencies, damping ratios and mode shapes) for CNC machine tool feed drives.
Widiyarto, Muhammad Helmi Nur +3 more
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Characterizing the Dynamic Response of a Chassis Frame in a Heavy-Duty Dump Vehicle based on an Improved Stochastic System Identification [PDF]
, 2015 This paper presents an online method for the assessment of the dynamic performance of the chassis frame in a heavy-duty dump truck based on a novel stochastic subspace identification (SSI) method. It introduces the use of an average correlation signal as
Chen, Zhi +3 more
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Parameter identification and hybrid mathematical modelling techniques applied to non-linear control systems [PDF]
The study is concerned with the mathematical modelling and parameter identification of nonlinear motion control systems. The control systems under review are the axis motion control systems for a 3-axis CNC machine tool.
Pislaru, Crinela
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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
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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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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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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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Modal parameter identification from output data only
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
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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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