Hybrid Substructuring for Vibro-Acoustical Optimisation: Application to suspension - Car Body Interaction

Wyckaert, Katrien; Brughmans, M.; Zhang, C.; Dupont, R

doi:10.4271/971944

Cited by 15 publications

(6 citation statements)

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“…After more than 30 years of research, TPA has been widely used to study vehicle NVH. [3][4][5] Van Der Linden and Fun 6 and Koners 7 proposed a TPA method based on matrix transposition. They applied the method to obtain the vibration-acoustic frequency response function (FRF) and the noise contribution of body panels.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of interior noise generation in high-speed vehicle based on anti-noise operational transfer path analysis

Liu

Sun

Wang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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Owing to the continuous development of the automobile industry, increasingly stringent performance requirements for noise, vibration, and harshness of automobiles are being presented. Interior noise control in high-speed vehicles has not been adequately addressed, owing to the complex mechanism of noise generation. As simulations performed previously focused on vehicle wind noise and tyre noise cannot adequately predict the effect on passenger ear-side noise, these issues are investigated in this study. Their effects on passengers are investigated using transfer path analysis. An anti-noise operational transfer path analysis is proposed to study noise generated in high-speed vehicles. The established anti-noise operational transfer path analysis model can eliminate crosstalks between noise source signals of different transmission paths. The model is validated by comparing the measured and calculated values of the anti-noise operational transfer path analysis model. The coherence of the input noise signal and the ear-side noise signal of the passenger is assessed using coherence analysis. By calculating and categorising the contributions of different noise sources in different locations and types, the main noise sources affecting passenger comfort are determined. The result indicates that the main noise sources affecting the passenger’s ear-side noise change from engine noise to left-A wind noise and tyre radiation noise with increasing vehicle speed, in which the proportion also increase. The proposed anti-noise operational transfer path analysis is suitable for the interior-noise analysis of high-speed vehicles, and this study may serve as a reference for future studies regarding active and passive noise control in high-speed vehicles.

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Section: Introductionmentioning

confidence: 99%

Mechanism of interior noise generation in high-speed vehicle based on anti-noise operational transfer path analysis

Liu

Sun

Wang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Generally, structural properties have either local design variables or global design variables in each design stage. In local design variables, the detailed dimensions of subsystems are used to generate the intermediated structural properties [1,2]. In global design variables, structural properties are themselves used as the design variables [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

A structural analysis of vehicle body-in-white using a substructuring technique

Kim

Lee

Chung

2007

Proceedings of the Institution of Mechanical Engineers, Part L:

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A great deal of effort have been invested in improving the structural performance and feasibilities of mechanical systems, which are composed of many components. In order to analyse the complex systems, the substructuring techniques based on the behaviour of each component can widely be used in the assembly model that each component is initially incompatible and needs the feasible responses of components. In this paper, this technique is applied to the vehicle body design, and their feasibilities are verified. and tjchung@kunsan.ac.kr JMDA105

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“…Dynamic substructuring technique is a method that predicts the dynamic behavior of a structure based on the dynamic behavior of the composing substructures. A method of calculating the frequency response functions of a structure composed of several substructures using the FRFs of the substructure is called as the transfer function synthesis method ( TFSM) or the FRF -based substructuring method [6,7]. The transfer function synthesis method is one of the most powerful methods in analyzing a response of complex built-up structures under high modal density.…”

Section: Introductionmentioning

confidence: 99%

Noise Sensitivity Analysis of an Engine Mount System Using the Transfer Function Synthesis Method

Lee¹,

Hwang²,

Kim³

2001

SAE Technical Paper Series

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The transfer function synthesis method is one of the most powerful methods in analyzing the responses of complex built-up structures under high modal density. Its superiority mostly comes from the ability to incorporate experimental FRFs into the formulation. In this paper, a general procedure for the design sensitivity analysis of vibro-acoustic problems has been presented in frame of the transfer function synthesis method. For an acoustic response function, the proposed method gives a parametric design sensitivity expression in terms of the partial derivatives of the connection element properties and the transfer functions of the substructures. As a realistic problem, an interior noise problem in a passenger car is analyzed. The proposed noise sensitivity formulation calculates the interior noise variations with respect to the changes of the dynamic characteristics of the engine mounts and the bushes. To obtain the FRFs, a finite element model is built for the engine mount structures, and experimental FRFs are used for the trimmed body including cabin cavity. The comparison of interior noise sensitivities obtained by the proposed method and the finite difference method shows that the proposed method is efficient and accurate.

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Hybrid Substructuring for Vibro-Acoustical Optimisation: Application to suspension - Car Body Interaction

Cited by 15 publications

References 0 publications

Mechanism of interior noise generation in high-speed vehicle based on anti-noise operational transfer path analysis

Mechanism of interior noise generation in high-speed vehicle based on anti-noise operational transfer path analysis

A structural analysis of vehicle body-in-white using a substructuring technique

Noise Sensitivity Analysis of an Engine Mount System Using the Transfer Function Synthesis Method

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