Experimental Determination of Automotive System Response Characteristics

Zhen, Jiantie; Lim, Teik C.; LU, G; Loon, James E. Van; Juan, Joe

doi:10.4271/2001-01-1477

Cited by 6 publications

(5 citation statements)

References 4 publications

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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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“…To address this problem, Lim proposed the inverse formulations that the FRFs of individual components and dynamic characteristics of the coupling elements can be predicted directly from the system‐level FRFs. Although this technique includes several mathematical operations that might be very sensitive to measurement errors and/or inconsistencies, it has its unique advantages in various application fields because no component‐level spectral response is needed.…”

Section: Introductionmentioning

confidence: 99%

Inverse Sub‐structuring Method for Rigidly Coupled Product Transport System based on Frequency Response Function Testing Probe Technique

Wang

Sun

et al. 2016

Packag Technol Sci

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The inverse sub-structuring method has been recently proposed and applied for inverse analysis of product transport system, to predict the component-level frequency response functions (FRFs) and the coupling dynamic stiffness from only the system-level FRFs. However, previous applications of this method were all developed based on the assumption that the components were coupled by flexible couplings. Actually, increasing more components are welded or bolted to construct a coupled system, which should be treated as rigidly coupled system. The aim of this paper is to derive a new FRF-based inverse sub-structuring method for the analysis of the dynamic characteristics of a two-component coupled product transport system with rigid couplings. And then a so-called FRF testing probe technique is proposed and applied to measure the difficult-to-monitor FRFs at the coupling interface. The developed method is verified by a lumped-mass model, showing exact agreement. Finally, the experiment on a physical prototype of two-substructure coupled product transport system is performed to further check the accuracy of the suggested method. The proposed method is an extension of previous inverse sub-structuring method and may help to obtain the main controlling factors and contributions from the various structure-borne paths for product transport system.

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“…FRF can be obtained conveniently through experiments and on‐line measurement. Zhen and Lim proposed the inverse substructure method using system‐level FRFs to predict the substructure‐level FRFs and the dynamic stiffness of coupling interface and applied it to motor vibration analysis and reduction . Wang applied this method to the analysis of two‐substructures and three‐substructures single‐coordinate coupled product‐transport systems and conducted complete experimental verification .…”

Section: Introductionmentioning

confidence: 99%

“…Zhen and Lim proposed the inverse substructure method using system-level FRFs to predict the substructure-level FRFs and the dynamic stiffness of coupling interface and applied it to motor vibration analysis and reduction. [1][2][3][4] Wang applied this method to the analysis of two-substructures and three-substructures single-coordinate coupled product-transport systems and conducted complete experimental verification. 5,6 Many papers were concerned with experimental evaluation of dynamic characteristics of a packaging system from excitation-response data.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Frequency Response Function of Product-Transport System Based on Multi-coordinate Coupled Inverse Substructure Method

Zhang

Wang

2013

Packag. Technol. Sci.

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The product and vehicle, through a packaging, constitute a complex product‐transport system in logistics. It is very important to obtain the frequency response functions of the product‐transport system and its substructures for the design of product packaging. In this paper, the product‐transport system is treated as a two‐substructures multi‐coordinate coupled system. It is composed of a product substructure and a vehicle substructure, which are connected by a packaging structure consisting of many packaging units. The multi‐coordinate coupled inverse substructure method is developed and used to analyse the dynamic characteristics of the product‐transport system. To verify the validity of this method for the product‐transport system, the experiment of a physical prototype is conducted. The results show that the predicted substructure‐level frequency response functions are in accordance with the measured. Copyright © 2013 John Wiley & Sons, Ltd.

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Experimental Determination of Automotive System Response Characteristics

Cited by 6 publications

References 4 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

Inverse Sub‐structuring Method for Rigidly Coupled Product Transport System based on Frequency Response Function Testing Probe Technique

Investigation of Frequency Response Function of Product-Transport System Based on Multi-coordinate Coupled Inverse Substructure Method

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