Determination of system vibratory response characteristics applying a spectral-based inverse sub-structuring approach. Part II: motor vehicle structures

Zhen, Jiantie; Lim, Teik C.; Lu, Guoming

doi:10.1504/ijvnv.2004.004067

Cited by 20 publications

(26 citation statements)

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“…The corresponding mathematical model is described below by applying the approach suggested by Zhen et al [14][15][16] .…”

Section: Two-substructure Systemmentioning

confidence: 99%

“…The formulation is derived by combining the spectralbased substructure method and a piecewise linear, discrete convolution theory. The spectral-based substructure method that was proposed by Zhen et al [14][15][16] is a more comprehensive formulation that allows for the dynamic coupling between substructures, unlike the classical TPA approaches. Using the spectral-based substructure method as the base platform, a discrete convolution is added to accommodate both weakly nonlinear and transient characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Time-domain two-substructure transfer path analysis of transient dynamic response in mechanical systems with weak nonlinear couplings

Jiang¹,

Lim²

2010

Noise Control Eng. J.

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A new time domain transfer path analysis is formulated to deal with a class of weakly nonlinear, transient structural dynamics problems. It combines the versatility of the frequency domain transfer path analysis for tracking vibration transmission between substructures and the generality of the time domain analysis for treating nonlinear transient dynamic response. The proposed theory is applied to a lumped parameter mass-spring-damper dynamic system, and the results are shown to compare quite well to the calculations from a classical direct numerical integration routine. Factors contributing to the accuracy of the proposed time domain transfer path analysis are also examined. Parametric analyses varying damping, the degree of nonlinearity and excitation amplitude yield the salient features and as well as the limitations of the proposed approach. © 2010 Institute of Noise Control Engineering.

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“…The corresponding mathematical model is described below by applying the approach suggested by Zhen et al [14][15][16] .…”

Section: Two-substructure Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Time-domain two-substructure transfer path analysis of transient dynamic response in mechanical systems with weak nonlinear couplings

Jiang¹,

Lim²

2010

Noise Control Eng. J.

Self Cite

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“…Lim [11][12][13][14] addressed this issue; the inverse formulation presented by Zhen et al [13] provides a new method to obtain component FRFs and coupling stiffness from system FRFs purely. It is a very competitive and attractive method since no component-level FRFs are needed in advance.…”

Section: Introductionmentioning

confidence: 99%

“…It is a very competitive and attractive method since no component-level FRFs are needed in advance. For instance, The promising successful applications of this technique in investigation of the vibration transmissibility and frequency response characteristics of motor vehicle and product transport system show its broad application respect in industry [14,15]. However, in Zhen's work, only a two-substructure coupled system is considered.…”

Section: Introductionmentioning

confidence: 99%

General Formulation of Inverse Substructuring Method for Multicoordinate Coupled System

Wang

Sun

et al. 2014

Advances in Mechanical Engineering

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A frequency response function-(FRF-) based direct decoupling method is proposed and applied to inverse analysis of a multicoordinate coupled system. The general formulation of inverse substructuring method for multicoordinate coupled multisubstructure system is derived. The proposed method is validated by a lumped mass-spring-damper model; the predicted FRFs of substructures are compared with the direct computations, showing exact agreement. The developed method offers an approach to back out the unknown substructure-level FRFs from purely system-level FRFs.

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“…When both components are not known or easily measured alone, it is desirable to express the individual components and coupling stiffness using only the combined system FRFs. Zhen et al (2004aZhen et al ( , 2004b addressed this issue: the inverse formulation presented by Zhen et al (2004a) provides individual component FRFs and connection stiffness purely from system FRFs. Although this technique has many operations in which noise and inconsistencies would become significantly amplified, it is still a very competitive and attractive method, since no component-level FRFs are needed in advance.…”

Section: Introductionmentioning

confidence: 99%

Step-by-step decoupling method for inverse substructuring analysis of a three-component coupled packaging system

Wang

2013

Journal of Vibration and Control

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Based on a step-by-step decoupling method, an inverse substructuring method is developed for the analysis of the dynamic characteristics of a single-coordinate coupled three-substructure system. The closed-form analytical solution to inverse substructuring analysis of the system is derived. The proposed method is validated by a lumped massspring-damper model, the predicted frequency response functions (FRFs) of substructures and the coupling stiffness; in addition, the most relevant system-level FRFs are compared with the direct computations, showing exact agreement. Finally, the sensitivity of the proposed method to measurement error is studied. The method developed offers an approach to extract the unknown substructure-level FRFs and coupling stiffness from system-level FRFs purely for single-coordinate coupled substructures.

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Determination of system vibratory response characteristics applying a spectral-based inverse sub-structuring approach. Part II: motor vehicle structures

Cited by 20 publications

References 0 publications

Time-domain two-substructure transfer path analysis of transient dynamic response in mechanical systems with weak nonlinear couplings

Time-domain two-substructure transfer path analysis of transient dynamic response in mechanical systems with weak nonlinear couplings

General Formulation of Inverse Substructuring Method for Multicoordinate Coupled System

Step-by-step decoupling method for inverse substructuring analysis of a three-component coupled packaging system

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