Journal ArticleDOI
Modal analysis of mdof system by using free vibration response data only
Bor-Tsuen Wang,Deng-Kai Cheng +1 more
TLDR
In this article, the structural displacement response in free vibration condition was measured and as the input to the modal parameter extraction algorithm such that all of the structural modal frequencies and mode shapes of the system can be determined successfully.About:
This article is published in Journal of Sound and Vibration.The article was published on 2008-04-08. It has received 31 citations till now. The article focuses on the topics: Modal testing & Modal analysis using FEM.read more
Citations
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Journal ArticleDOI
Fast Bayesian approach for modal identification using free vibration data, Part i - Most probable value
TL;DR: In this paper, a Bayesian statistical approach is developed for modal identification using the free vibration response of structures, and a frequency domain formulation is proposed that makes statistical inference based on the Fast Fourier Transform (FFT) of the data in a selected frequency band.
Journal ArticleDOI
Modal analysis by free vibration response only for discrete and continuous systems
Bor-Tsuen Wang,Deng-Kai Cheng +1 more
TL;DR: In this article, the authors developed an algorithm for modal analysis by free vibration response only (MAFVRO), in particular for the general or non-proportional viscous damping system model.
Vibration Analysis using Time Domain Methods for the Detection of small Roller Bearing Defects
Tahsin Doguer,Jens Strackeljan +1 more
TL;DR: In this paper, the shape of selected time domain peaks is calculated by the higher derivatives of the time acceleration signal and some parameters characterizing the randomness of the peak positions, which enables the selection of a feature subset which is best suited to the present fault situation.
Journal ArticleDOI
Adaptive operational modal identification for slow linear time-varying structures based on frozen-in coefficient method and limited memory recursive principal component analysis
Cheng Wang,Cheng Wang,Guan Wei,Jiang Wang,Bineng Zhong,Xiongming Lai,Yewang Chen,Liang Xiang +7 more
TL;DR: In this paper, the authors proposed a novel operational modal analysis (OMA) method based on the frozen-in coefficient method and limited memory recursive principal component analysis (LMRPCA) for linear weakly damped structures with slow time-varying characteristics under unmeasured stationary random ambient loads.
Proceedings ArticleDOI
Detection of rolling element bearing defects by vibration signature analysis: A review
TL;DR: In this paper, the authors proposed a method to detect and locate even very small bearing faults, such as false brinelling, minute wear marks etc., based on the vibration analysis.
References
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Book
Principles and techniques of vibrations
TL;DR: The finite element method for the algebraic Eigenvalue problem of distributed-parameter systems was introduced in this article. But it is not suitable for the linear system theory of single-degree-of-freedom (SDF) systems.
Modal Identification from Ambient Responses Using Frequency Domain Decomposition
TL;DR: In this paper, a decomposition of the spectral density function matrix is introduced for modal identification from ambient responses, i.e. in the case where the modal parameters must be estimated without knowing the input of the system.
A method for the direct identification of vibration parameters from the free response
S. R. Ibrahim,E. C. Mikulcik +1 more
Journal ArticleDOI
On the physical interpretation of proper orthogonal modes in vibrations
Brian F. Feeny,R. V. Kappagantu +1 more
TL;DR: In this article, the authors relate the proper orthogonal modes, as applied in discrete vibration systems, to normal modes of vibration in systems with a known mass matrix in the case of undamped free vibration.
Journal ArticleDOI
Physical interpretation of the proper orthogonal modes using the singular value decomposition
TL;DR: In this paper, the authors provide insights into the physical interpretation of the proper orthogonal modes using the singular value decomposition (SVD) in the field of structural dynamics.
Related Papers (5)
Modal analysis by free vibration response only for discrete and continuous systems
Bor-Tsuen Wang,Deng-Kai Cheng +1 more
On the physical interpretation of proper orthogonal modes in vibrations
Brian F. Feeny,R. V. Kappagantu +1 more
Application of proper orthogonal decomposition to structural vibration analysis
S. Han,Brian F. Feeny +1 more