Results 1 to 10 of about 24,328 (215)
Performance Analysis of Active Structural Acoustic Control Applied to a Washing Machine [PDF]
Sensors, 2022 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 ...
Stanislaw Wrona
doaj +2 more sources
An Intelligent Acoustic Emission System for Active Anomaly Identification and Traffic Control of a Highway Viaduct [PDF]
SensorsThis paper presents a significant evolution of the Identification of Active Anomalies (IAA) system, moving beyond previous descriptive frameworks by integrating an advanced machine learning pipeline for automated, real-time Structural Health Monitoring ...
Aleksandra Krampikowska, Grzegorz Świt
doaj +2 more sources
Journal of Low Frequency Noise, Vibration and Active Control, 2017 Linear quadratic Gaussian optimal control is one of the techniques used for active noise control. In practical implementation of this technique, one of the key difficulties faced is the estimation of the states of the plant.
Ashok K Bagha, Subodh V Modak
doaj +2 more sources
Shock and Vibration, 2021 In this paper, the radiation characteristics and active structural acoustic control of a submerged cylindrical shell at low frequencies are investigated. First, the coupled vibro-acoustic equations for a submerged finite cylindrical shell are solved by a
Shaohu Ding +4 more
doaj +1 more source
Improved FULMS Algorithm for Multi-Modal Active Control of Compressor Vibration and Noise Reduction
Applied Sciences, 2022 Active control is currently a hot-button issue in the research of reducing vibration and noise created by rolling piston compressors. Active control can effectively suppress the modal vibration of the structure and reduce the modal resonance acoustic ...
Xiaowen Wu +4 more
doaj +1 more source
Internal Model Control for a Light-Weight Active Noise-Reducing Casing
Archives of Acoustics, 2016 The active noise-reducing casing developed and promoted by the authors in recent publications have multiple advantages over other active noise control methods.
Krzysztof MAZUR, Marek PAWEŁCZYK
doaj +1 more source
New Journal of Physics, 2021 Acoustic metamaterials have already been shown to be effective for vibration reduction and control. Local resonances in the metamaterial cause waves at frequencies within band gaps to become evanescent, thus preventing wave propagation through the ...
Aaron Stearns, Benjamin Beck
doaj +1 more source
Active Structural Acoustic Control of an Active Casing Placed in a Corner
Applied Sciences, 2019 Electric appliances used in workplaces and everyday life often generate a low-frequency noise, which affects human body systems. Passive methods employed to reduce noise are not effective at low frequencies. The classical approach to active noise control
Anna Chraponska +4 more
doaj +1 more source
Feedforward Control of a Light-Weight Device Casing for Active Noise Reduction
Archives of Acoustics, 2016 It is possible to enhance acoustic isolation of the device from the environment by appropriately controlling vibration of a device casing. Sound insulation efficiency of this technique for a rigid casing was confirmed by the authors in previous ...
Stanislaw WRONA, Marek PAWELCZYK
doaj +1 more source
IEEE Access, 2021 An optimal filter design method for a virtual mechanical impedance (VMI) control system is presented in this report. Existing passive methods for reducing machinery noise have limited applications because of weight reduction, cooling, and appearance ...
Onyu Jeon, Hyun-Guk Kim, Semyung Wang
doaj +1 more source