Performance Evaluation of Active Noise Control for a Real Device Casing

Mazur, Krzysztof; Wrona, Stanisław; Pawełczyk, Marek

doi:10.3390/app10010377

Cited by 10 publications

(7 citation statements)

References 21 publications

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“…The idea of using whole casings as active barriers was initially proposed by Fuller et al [ 9 ]. A similar idea was later developed by other researchers [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 85%

Performance Analysis of Active Structural Acoustic Control Applied to a Washing Machine

Wrona

2022

Sensors

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Great efforts are undertaken by scientists and manufacturers to reduce noise generated by devices present in the human environment. This task is particularly difficult in the case of low-frequency noise; however, active noise reduction methods can be a solution to such problems. The purpose of this article is to present the active noise-controlling casing method applied to a washing machine, whose noise generated during the spinning process is to be reduced. The paper presents a set of experimental measurements and analyses. It also provides hardware and software configuration details. The employed active control system can efficiently reduce noise, even by 16 dBA in the low-frequency range up to 300 Hz, which is an important step towards making the technology ready for manufacturing. The conclusions drawn are valid for different active noise-control applications, considering a variety of devices.

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“…The idea of using whole casings as active barriers was initially proposed by Fuller et al [ 9 ]. A similar idea was later developed by other researchers [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 85%

Performance Analysis of Active Structural Acoustic Control Applied to a Washing Machine

Wrona

2022

Sensors

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“…A 10 dB reduction in traffic and railway noise was achieved on frequencies from 100 Hz to 1000 Hz for canceling the incoming signals in a real window of 1 m Â 1 m [44]. There are ANC systems for controlling SPL in the interior of a vehicle [45], a "noisecanceling office chair" [46] and a "capsule" for home devices, to control both noise and vibrations [47].…”

Section: Some Applications Of Active Controlmentioning

confidence: 99%

Overview of Noise Control Techniques and Methods

González¹

2023

Noise Control

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Noise control refers to a set of methods, techniques, and technologies that allows obtaining acceptable noise levels in a given place, according to economic and operational considerations. The question of “acceptance” is for what or for whom. Generally, there is no single answer to this question, nor is there a single solution to any given problem, as long as regulatory compliance is achieved. Noise control does not necessarily imply the reduction of noise emissions—it refers to making acceptable sound pressure levels of immission (i.e., the signal reaching the receiver). This chapter aims to present the basis of noise control techniques, both in emission and propagation, to finally achieve the most current protection techniques for the receivers, when there are no more alternatives in the previous steps.

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“…Due to the high damping of the structural parts and the coupled air cavity, the modal behavior of the system is weakly pronounced and the actuator optimization has a rather flat objective function. Another aspect which makes the performance of the smart lining less dependent on the actuator locations is that, unlike, for example, in Mazur et al [18], the system is tuned to reduce the SPL locally in the acoustic near field instead of globally in the whole cavity. For the mentioned reasons, it is considered appropriate to position the actuators in a straightforward manner.…”

Section: Sensors and Actuatorsmentioning

confidence: 99%

Active Sidewall Panels with Virtual Microphones for Aircraft Interior Noise Reduction

Misol¹

2020

Applied Sciences

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This work deals with the reduction of aircraft interior noise using active sidewall panels (linings). Research work done in the past showed that considerable reductions of the sound pressure level (SPL) in the cabin are possible using structural actuators mounted on the lining and error microphones distributed in front of the linings. However, microphones are undesirable for error sensing because they are not suitable for the realisation of an integrated and autonomous active lining (smart lining module). Therefore, the goal of the present work is the replacement of the microphones by structural sensors. Using the structural sensors as remote sensors in combination with an acoustic filter, virtual microphones can be defined. The present study relies on experimental data of a double-walled fuselage system which is mounted in a sound transmission loss facility. Simulation results based on measured time data and identified frequency response functions are provided. Different configurations of virtual microphones are investigated regarding the SPL reduction and the induced vibration of the lining panel.

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Performance Evaluation of Active Noise Control for a Real Device Casing

Cited by 10 publications

References 21 publications

Performance Analysis of Active Structural Acoustic Control Applied to a Washing Machine

Performance Analysis of Active Structural Acoustic Control Applied to a Washing Machine

Overview of Noise Control Techniques and Methods

Active Sidewall Panels with Virtual Microphones for Aircraft Interior Noise Reduction

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