On the optimization of a mixed speaker array in an enclosed space using the virtual-speaker weighting method

Peng, Bo; Zheng, Sifa; Liao, Xiangning; Lian, Xiaojuan

doi:10.1016/j.ymssp.2017.09.024

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…A number of other methodologies different from DoE have been used. To improve the mixed speaker array, for example, a virtual-speaker weighting method was developed (Peng et al, 2018). The method tested measures the increase in controllability of the speaker array.…”

Section: Industrial Applications Of Design and Analysis Of Experimentsmentioning

confidence: 99%

Optimising process and product performance in complex systems: a study in the automotive industry

Pacheco

Librelato

2022

IJQRM

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PurposeThis study responds to calls from industry and the literature to cope with the enormous challenges faced by companies operating in competitive business sectors. The main objective of this paper is to investigate how managers can optimise product quality and process efficiency of complex systems.Design/methodology/approachIn this paper, a design of experiments (DoE) method was used to improve the development of complex products and manufacturing processes in the industry of automotive audio components. To identify the optimal combination that minimises quality problems occurring with subwoofer speakers in the marketing, this study proposed a full Factorial experiment 24 with three replications in a single block summarised in an analysis of the interaction among the factors.FindingsThe research findings revealed the factors and levels regarding both the product development and manufacturing processes that significantly impact the quality and reliability performance of the subwoofer speaker analysed. The findings from the article allowed the company to prioritise internal improvements to enhance product quality and process efficiency. Other automotive firms will benefit from the research findings obtained.Practical implicationsFrom a managerial perspective, this research presented the DoE methodology as a real opportunity to deal with the inherent complexity of the manufacturing process in the automotive audio components sector. This research assist managers with insights into how they can improve the quality performance in production systems and in the market.Originality/valueThis study is an original contribution to the advance of theory and empirical implementation of DoE in competitive industrial sectors.

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Section: Industrial Applications Of Design and Analysis Of Experimentsmentioning

confidence: 99%

Optimising process and product performance in complex systems: a study in the automotive industry

Pacheco

Librelato

2022

IJQRM

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“…However, the detailed information contained in the circumferential distribution of sound radiation that revealed the running status was ignored. The circumferential distribution of sound radiation, also regarded as sound directivity, provides information of the spatial distribution of the sound field, and is widely used in the assessment of duct radiation and loudspeakers [25][26][27][28][29]. The uneven circumferential distribution of ceramic bearing sound radiation not only affects the acoustic performance, but also leads to the difference of wear and the service life.…”

Section: Introductionmentioning

confidence: 99%

On the circumferential distribution of ceramic bearing sound radiation

Bai

Zhang³

2020

J Braz. Soc. Mech. Sci. Eng.

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This paper investigates the sound radiation of ceramic bearings based on the sub-source decomposition method. The circumferential distribution of the sound field that influences the acoustic performance and service life is selected as the indicator, and the calculation precision is verified by an experiment. Afterward, the rotation speed of the bearing is fixed, and the circumferential distributions of sound pressure levels are evaluated to show the variation in radial and axial directions. Results show that the sound radiation varies greatly in the circumference, and sound pressure levels in the lower semicircles are evidently greater than those in the upper semicircles. The trends of circumferential distribution and overall sound pressure levels are different in radial direction, but similar in axial direction. The peak angle is slightly skewed to the rotation direction in the lower semicircle, and also changes with radial and axial distances. The frequency results indicate the main frequency components in the sound radiation, and the variations are discussed from the point of source radiation. This work provides insights into predicting the acoustic performance of ceramic bearings, and can guide further research and development.

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Auditory performance of reproduced sound field in aircraft cabin mock-up by feedback controlled multichannel least-square equalization method

Zheng

Liu

et al. 2023

Building and Environment

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On the optimization of a mixed speaker array in an enclosed space using the virtual-speaker weighting method

Cited by 3 publications

References 18 publications

Optimising process and product performance in complex systems: a study in the automotive industry

Optimising process and product performance in complex systems: a study in the automotive industry

On the circumferential distribution of ceramic bearing sound radiation

Auditory performance of reproduced sound field in aircraft cabin mock-up by feedback controlled multichannel least-square equalization method

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