Structure-borne noise reduction in a truck cab interior using numerical techniques

Mohanty, Amiya Ranjan; Pierre, Barry D St.; Surulinarayanasami, P.

doi:10.1016/s0003-682x(99)00018-3

Cited by 53 publications

(21 citation statements)

References 4 publications

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“…Our results can be explained by the fact that truck drivers are usually confined to their cabin for extensive periods [14] and therefore may not tolerate extra sounds. In fact, much research has been conducted on the cancellation of noise in the cabin [15][16][17][18]. Truck drivers have a risk of hearing loss due to the noise in the working environment [19].…”

Section: Main Findings and Interpretationmentioning

confidence: 99%

Continuous auditory feedback on the status of adaptive cruise control, lane deviation, and time headway: An acceptable support for truck drivers?

Bazilinskyy

Larsson

Johansson

et al. 2019

Acoust. Sci. & Tech.

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The number of trucks that are equipped with driver assistance systems is increasing. These driver assistance systems typically offer binary auditory warnings or notifications upon lane departure, close headway, or automation (de)activation. Such binary sounds may annoy the driver if presented frequently. Truck drivers are well accustomed to the sound of the engine and wind in the cabin. Based on the premise that continuous sounds are more natural than binary warnings, we propose continuous auditory feedback on the status of adaptive cruise control, lane offset, and headway, which blends with the engine and wind sounds that are already present in the cabin. An on-road study with 23 truck drivers was performed, where participants were presented with the additional sounds in isolation from each other and in combination. Results showed that the sounds were easy to understand and that the lane-offset sound was regarded as somewhat useful. Systems with feedback on the status of adaptive cruise control and headway were seen as not useful. Participants overall preferred a silent cabin and expressed displeasure with the idea of being presented with extra sounds on a continuous basis. Suggestions are provided for designing less intrusive continuous auditory feedback.

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Section: Main Findings and Interpretationmentioning

confidence: 99%

Continuous auditory feedback on the status of adaptive cruise control, lane deviation, and time headway: An acceptable support for truck drivers?

Bazilinskyy

Larsson

Johansson

et al. 2019

Acoust. Sci. & Tech.

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show abstract

“…So, for an internal problem a FEM/FEM model is often quicker. For external unbounded problems BEM/FEM comes to its full right, since boundary elements satisfy the Sommerfeld radiation condition and therefore can handle Consequently, even if the exclusive usage of FEM to work out acoustic problems is still popular [2][3][4], nowadays, the most efficient approach to study the car vibroacoustic problems is based on the coupled usage of Finite Element Method (FEM) for vibration analysis and Boundary Element Method for acoustic analysis [5][6][7][8][9]. The possibility offered by BEM to reduce the dimensionality of the meshing domain is highly appreciated when considering the complex geometry of the car components; moreover, as previously said, BEM performs better for exterior problems (e.g., radiation from a component in an infinite domain).…”

Section: Bem/fem or Fem/femmentioning

confidence: 99%

Acoustic Analysis of an Exhaust MANIFOLD by INDIRECT Boundary Element Method

Citarella¹

2011

TOMEJ

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The present work is aimed at the development of a numerical procedure, based on the usage of the Boundary Element Method (BEM) as implemented in the software LMS Virtual.Lab, for the vibro-acoustics analysis of an exhaust manifold. The manifold vibrations are induced by two different ways: engine vibrations (transmitted to the manifold surfaces) and turbulences generated by the air flow in the exhaust system. The indirect BEM (IBEM), with a variational solution algorithm, is adopted to assess the exhaust manifold acoustic radiation. The modal analysis of the acoustic cavity is realized by the Finite Element Method (FEM) and the corresponding eigenfrequencies compared with those obtained by an IBEM forced response analysis and by experimental measurement. Experimental acoustic pressures at the manifold inlet and outlet are measured in anechoic room in order to compare with corresponding numerical predictions and assess the accuracy level obtained.

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“…The finite element method (FEM) can be used to perform the structural vibration analysis as well as acoustic analysis. But it will consume a lot of computing time, whereas the BEM is efficient and timesaving in the field of acoustic analysis [4]. Hence, FEM and BEM are associated with the analysis in this study.…”

Section: Acoustic Response Analysismentioning

confidence: 99%

Acoustic analysis of lightweight auto-body based on finite element method and boundary element method

Zhu

Liu

Lin

et al. 2007

Front. Mech. Eng. China

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A lightweight automotive prototype using alternative materials and gauge thickness is studied by a numerical method. The noise, vibration, and harshness (NVH) performance is the main target of this study. In the range of 1-150 Hz, the frequency response function (FRF) of the body structure is calculated by a finite element method (FEM) to get the dynamic behavior of the auto-body structure. The pressure response of the interior acoustic domain is solved by a boundary element method (BEM). To find the most contributing panel to the inner sound pressure, the panel acoustic contribution analysis (PACA) is performed. Finally, the most contributing panel is located and the resulting structural optimization is found to be more efficient.

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Structure-borne noise reduction in a truck cab interior using numerical techniques

Cited by 53 publications

References 4 publications

Continuous auditory feedback on the status of adaptive cruise control, lane deviation, and time headway: An acceptable support for truck drivers?

Continuous auditory feedback on the status of adaptive cruise control, lane deviation, and time headway: An acceptable support for truck drivers?

Acoustic Analysis of an Exhaust MANIFOLD by INDIRECT Boundary Element Method

Acoustic analysis of lightweight auto-body based on finite element method and boundary element method

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