Multi-objective actuator placement optimization for local sound control evaluated in a stochastic domain
Published inReports of the Department of Mathematical Information Technology / University of Jyväskylä. Series B, Scientific computing
A method to find optimal locations and properties of anti-noise actuators in local noise control system is considered. The local noise control performance is approximated by a finite element method based approach, that attempts to estimate the average performance of optimal active noise control (ANC) system. The local noise control uses a fixed number of circular actuators that are located on the boundary of a three-dimensional enclosed acoustic space. Actuator signals are used to minimize the known harmonic noise at specified locations. The average noise reduction is maximized at two frequency ranges by adjusting the anti-noise actuator configuration, which is a non-linear multi-objective optimization problem. To solve the optimization problem, unsorted population size evolutionary optimization algorithm (UPS-EMOA) is considered, and its performance is compared to the widely-known NSGA-II method. As a numerical example problem, ANC in a passenger car cabin is considered. A significantly better noise control is obtained with the optimized actuator locations than only by a engineer’s sophisticated guess. ...
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Please see alsohttp://urn.fi/URN:NBN:fi:jyu-201210172704
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Airaksinen, Tuomas (University of Jyväskylä, 2010)This dissertation considers numerical methods for wave propagation modelling and noise control. The first part of the dissertation discusses an efficient method for solving time-harmonic wave equations in acoustic (the ...
Multi-objective actuator placement optimization for local sound control evaluated in a stochastic domain Airaksinen, Tuomas; Aittokoski, Timo (Springer, 2013)A method to find optimal locations and properties of anti-noise actuators in a local noise control system is considered. The local noise control performance is approximated by an approach based on a finite element method, ...
Airaksinen, Tuomas; Toivanen, Jari (Elsevier, 2013)A new method is presented to obtain a local active noise control that is optimal in stochastic environment. The method uses numerical acoustical modeling that is performed in the frequency domain by using a sequence of ...
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Airaksinen, Tuomas; Heikkola, Erkki; Toivanen, Jari (World Scientific Publishing, 2011)A numerical method for optimizing the local control of sound in a stochastic domain is developed. A three-dimensional enclosed acoustic space, for example, a cabin with acoustic actuators in given locations is modeled ...