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Showing papers in "Journal of Sound and Vibration in 2018"


Journal ArticleDOI
TL;DR: Three types of nonlinear dampers that are widely utilized in practical engineering are reviewed in this paper: the nonlinear energy sink (NES), particle impact damper (PID), and nonlinear viscousdamper (NVD), respectively.

203 citations


Journal ArticleDOI
TL;DR: The subtle motions from recorded video are extracted by means of Phase-based Motion Estimation (PME) and the extracted information is used to conduct damage identification on a 2.3-m long Skystream® wind turbine blade (WTB).

163 citations


Journal ArticleDOI
TL;DR: The variation features of the center frequency (CF) of extracted modes are investigated with different ICFs, in which the converging U-shape phenomenon is found and a novel ICF-guided VMD method is proposed to extract accurately the weak damage features of rotating machines.

156 citations


Journal ArticleDOI
TL;DR: In this article, a strong-form boundary collocation method, the singular boundary method (SBM), is developed for the wave propagation analysis at low and moderate wavenumbers in periodic structures.

140 citations


Journal ArticleDOI
TL;DR: A novel application of 1D Convolutional Neural Networks (1D CNNs) on WSNs for SDD purposes and the method operates directly on the raw ambient vibration condition signals without any filtering or preprocessing, requiring minimal computational time and power.

138 citations


Journal ArticleDOI
TL;DR: A novel blind deconvolution method based on the generalized Rayleigh quotient and solved by means of an iterative eigenvalue decomposition algorithm reveals superior capability to recover impulsive cyclostationary sources with respect to other blind deconVolution methods, even in the presence of impulsive noise or under non-constant speed.

135 citations


Journal ArticleDOI
TL;DR: A novel early fault feature extraction method based on the proposed hierarchical symbol dynamic entropy (HSDE) and the binary tree support vector machine (BT-SVM) is proposed to recognize the early fault types of rolling bearings.

125 citations


Journal ArticleDOI
TL;DR: A new approach for vibration mitigation based on a dynamic vibration absorbing structure (DVAS) for electric vehicles (EVs) that use in-wheel switched reluctance motors (SRMs) can augment the effective application of SRMs in EVs.

103 citations


Journal ArticleDOI
TL;DR: In this article, the authors present an analytical study on linear and nonlinear free vibration characteristics and dynamic responses of spinning functionally graded (FG) graphene reinforced thin cylindrical shells with various boundary conditions and subjected to a static axial load.

98 citations


Journal ArticleDOI
TL;DR: Simulations and comparisons highlight the performance of TVF-EMD method for signal decomposition, and meanwhile verify the fact that bandwidth threshold and B-spline order are critical to the decomposition results.

95 citations


Journal ArticleDOI
TL;DR: An algorithm for multiple T-F curve extraction from the TFR based on a fast path optimization which is more reliable for T-f curve extraction and a new procedure for bearing fault diagnosis under unknown time-varying speed conditions is developed.

Journal ArticleDOI
TL;DR: The proposed improved deconvolution method for the fault detection of rolling element bearings solves the filter coefficients by the standard particle swarm optimization algorithm, assisted by a generalized spherical coordinate transformation.

Journal ArticleDOI
TL;DR: Inerter dampers can offer better damping performance than conventional viscous dampers for the target mode of a stay cable that requires optimization, however, additional damping ratios in other vibration modes through inerter damper are relatively limited.

Journal ArticleDOI
TL;DR: A new structural identification method is proposed to identify the modal properties of engineering structures based on dynamic response decomposition using the variational mode decomposition (VMD), which decomposes the acceleration signal into a series of distinct modal responses and their respective center frequencies.

Journal ArticleDOI
TL;DR: In this article, an iterative procedure for numerical prediction of long-term degradation of railway track geometry (longitudinal level) due to accumulated differential settlement of ballast/subgrade is presented.

Journal ArticleDOI
TL;DR: In this paper, the free vibration analysis of functionally graded beams (FGBs) and frameworks containing FGBs is carried out by applying the dynamic stiffness method and deriving the elements of dynamic stiffness matrix in explicit algebraic form.

Journal ArticleDOI
TL;DR: In this article, the authors used the contact point response of a moving test vehicle for the damage detection of bridges, where the Hilbert transform was used to calculate the instantaneous amplitude squared (IAS) of the driving component of the contact-point response.

Journal ArticleDOI
TL;DR: In this article, a lever-type nonlinear energy sink is proposed by introducing a lever to reduce the necessary mass of the energy sink and it is attached to a two-degree-of-freedom simplified model of whole-spacecraft subjected a harmonic excitation.

Journal ArticleDOI
TL;DR: This study proposes two strategies of selecting the regularization parameter for the l1-regularized damage detection problem, the first method utilizes the residual and solution norms of the optimization problem and ensures that they are both small, and the other method is based on the discrepancy principle.

Journal ArticleDOI
TL;DR: In this paper, an active tuned mass dampers (ATMD) was incorporated into the tower of a wind turbine to increase the reliability of the tower responses to wind loading. But, the effect of the active controller on the tower performance was not evaluated.

Journal ArticleDOI
TL;DR: In this article, the negative stiffness magnetic spring (NSMS) was employed to construct high static low dynamic stiffness (HSLDS) struts to reduce the resonance frequency of the Stewart isolation platform.

Journal ArticleDOI
TL;DR: In this article, the authors focused on the resonant responses and chaotic dynamics of a composite laminated circular cylindrical shell with radially pre-stretched membranes at both ends and clamped along a generatrix.

Journal ArticleDOI
Siliang Lu1, Peng Zhou1, Xiaoxian Wang1, Yongbin Liu1, Fang Liu1, Jiwen Zhao1 
TL;DR: A new method for motor bearings condition monitoring and fault diagnosis using the undersampled vibration signals acquired from a WSN, which is a fusion of the kurtogram, analog domain bandpass filtering, bandpass sampling, and demodulated resonance technique is investigated.

Journal ArticleDOI
TL;DR: In this article, the wave propagation behavior and attenuation mechanism of the elastic metamaterial with locally resonant sub-structure was analyzed and it was shown that the band gap always coincides with the frequency range of negative effective properties.

Journal ArticleDOI
TL;DR: In this paper, the impact force on the triboelectric layers of a polydimethylsiloxane (PDMS) with micro semi-cylindrical patterns was introduced to enlarge the frequency bandwidth.

Journal ArticleDOI
TL;DR: The proposed multi-scale SR spectrogram (MSSRS) is able to well deal with the non-stationary transient signal, and can highlight the defect-induced frequency component corresponding to the impulse information.

Journal ArticleDOI
TL;DR: A sparsity-enhanced signal decomposition method which uses the generalized minimax-concave (GMC) penalty as a nonconvex regularizer to enhance sparsity in the sparse approximation compared to classicalSparsity-assisted signal decompose methods, and thus to improve the decomposition accuracy for gearbox fault diagnosis.

Journal ArticleDOI
TL;DR: In this paper, the amplitudes of characteristic frequencies based on a phenomenological model were explored for a planetary gearbox and a modified sideband energy ratio (SER) was proposed to deal with the problem of rotating speed fluctuation.

Journal ArticleDOI
TL;DR: It is shown that the use of inerter element in the passive vibration isolation scheme can enhance the isolation effect and enables large, theoretically unlimited negative feedback gains and large active damping of the receiving body vibration.

Journal ArticleDOI
TL;DR: In this article, a Negative Stiffness System (NSS) based on a set of two double-acting pneumatic linear actuators (PLA) is proposed to reduce the dynamic resonance frequency of the overall system.