Integrated Solutions for Noise &amp; Vibration Control in Vehicles

Bein, Thilo; Elliott, Stephen J.; Ferralli, Leonardo; Casella, Mauro; Meschke, Jens; Saemann, Ernst-Ulrich; Nielsen, Finn-Kryger; Kropp, Wolfgang

doi:10.1016/j.sbspro.2012.06.1069

Cited by 12 publications

(4 citation statements)

References 1 publication

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“…Many efforts have helped with the reduction of interior noise, [1][2][3][4][5][6][7] but it is still a challenging task, especially when the vehicles are now under the trend towards lightweight design and toward new energy replacement. 8,9 In developing the techniques to mitigate/control noise, it is important for the manufacturers that the techniques themselves as well as the developing processes are cost effective. 10 Fortunately, the recently rapidly-developing computer-aided engineering (CAE) tools significantly save costs in the design stage.…”

Section: Introductionmentioning

confidence: 99%

Design and Characterization of a Test Bench For Interior Noise Investigations

Liu¹,

Ripamonti²,

Corradi³

et al. 2022

The International Journal of Acoustics and Vibration

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The increasing demand for acoustic comfort in vehicles has popularized the vibroacoustic analysis using computer-aided engineering (CAE) tools and boosted the development of various noise control measures. Concerning the often-unknown reliability of a CAE tool and the high cost of testing control strategies in a real vehicle, this paper proposes a test bench called Noise-Box, for benchmarking the CAE tools and testing new control measures. The test bench is designed towards a simple plate-cavity system that is easy to model and analyze, so that any vibroacoustic test performed on it can be accurately reproduced by numerical models. Specifically, it is a concrete box with six rigid walls and an opening that can be covered by flexible or soundproofing panels. The complete design is elaborated, including the cavity's shape and dimensions, the panel's installation and the device's overall configuration. Moreover, the acoustic field provided by the test bench is characterized for the typical features that will guide the device's future applications, covering modal property, reverberation time (or sound absorption) and field diffuseness. This work could be informative and instructive not only for the presentation of the novel test bench but also for the utilized methodologies in its design and characterization.

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Section: Introductionmentioning

confidence: 99%

Design and Characterization of a Test Bench For Interior Noise Investigations

Liu¹,

Ripamonti²,

Corradi³

et al. 2022

The International Journal of Acoustics and Vibration

View full text Add to dashboard Cite

show abstract

“… the development and integration of noise and vibration control strategies (e.g. piezoelectric integrated solutions developed by Bein et alii in the above mentioned Project of Green City Car [17], the piezo shunted resonators described by Liao and Sodano in [18]18 and by Ciminello et alii [19], the SMA based architecture for changing the dynamic structural response developed by Ameduri et alii [20]).…”

Section: Introductionmentioning

confidence: 99%

Car Soundproof Improvement Through an SMA Adaptive System

Ameduri¹,

Brindisi²,

Ciminello³

et al. 2018

Preprint

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The work at hand focuses on an adaptive system aimed at improving the soundproof performance of car door seals at specific working regimes (cruise), without interfering with the conventional open-closure operations. The idea addresses the necessity of increasing the seal effectiveness, jeopardized by aerodynamic actions more and more important as the speed increase, generating a pressure difference between the internal and the external filed, in the direction of opening the door. To recover this effect, an expanding mechanism was integrated within the seal cavity, driven by an SMA actuator. The material was activated (heated) by Joule effect; its compactness, intrinsic of smart materials, contributed to arrive to a final system characterized by a high level of integrability (expanding cells). In this paper, the development process is described together with the verification activity, aimed at proving the functionality of the realized device. Starting from the industrial requirements, the most appropriate solution was identified highlighting the working principle and the main design parameters involved. Then, the envisaged system was designed and its executive digital mock up (CAD) was released. Prototyping and laboratory validation showed the reliability of the numerical models and the associated predictions. On this basis, the integration task within the actual reference car was faced. To demonstrate the isolation effect of the proposed system, an experimental campaign was finally organized in an anechoic room, achieving significant results on the concept value.

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“…Noise, vibration and harshness characteristics of cars and trucks are becoming increasingly important in recent years (Bein et al (2012), Bohn et al (2003Bohn et al ( , 2004, Duan et al (2013), Inoue et al (2004), Matsuoka et al (2004), Sano et al (2001Sano et al ( , 2002, Soureshi and Knurek (1996), Shoureshi et al (1997) and Svaricek et al (2010)). The work presented here focuses on the reduction of the engine-induced vibrations through switching between multiple input multiple output (MIMO) linear parameter-varying (LPV) gainscheduling controllers.…”

Section: Introductionmentioning

confidence: 99%