Active noise control of a diesel generator in a luxury yacht

Abstract Active noise control has been applied to a variety of systems in order to improve performance without the increases in size and weight that would otherwise be required by traditional passive noise control treatments. This paper investigates the application of an active noise control system to the control of generator noise in the master cabin of a luxury yacht. A multichannel, multi-tonal active noise control system employing loudspeakers and microphones in the master cabin of the yacht is investigated. It is shown that, due to the high number of engine orders produced by the generator, in order to achieve significantly perceptible levels of noise attenuation it is necessary to control at least 7 individual orders. A controller is investigated which targets 19 engine orders and it is shown to achieve in excess of 5 dB broadband attenuation, whilst achieving up to 23 dB attenuation in individual orders. This corresponds to a 23% reduction in the Zwicker loudness.

[1]  Colin H. Hansen,et al.  ENGINEERING NOISE CONTROL: Theory and Practice , 1988 .

[2]  Yann Pasco,et al.  Multi-harmonic active structural acoustic control of a helicopter main transmission noise using the principal component analysis , 2009 .

[3]  F. A. Johnson,et al.  Active vibration control for marine applications , 2004 .

[4]  Philip A. Nelson,et al.  Active cancellation at a point in a pure tone diffuse sound field , 1988 .

[5]  Stephen J. Elliott,et al.  Active control of road noise inside vehicles , 1994 .

[6]  Jordi Romeu,et al.  Active control of aircraft fly-over sound transmission through an open window , 2014 .

[7]  Hugo Fastl,et al.  Psychoacoustics: Facts and Models , 1990 .

[8]  Stephen J. Elliott,et al.  A multiple error LMS algorithm and its application to the active control of sound and vibration , 1987, IEEE Trans. Acoust. Speech Signal Process..

[9]  Stephen J. Elliott,et al.  Signal Processing for Active Control , 2000 .

[10]  Alberto Gonzalez,et al.  PERFORMANCE EVALUATION OF MULTICHANNEL ADAPTIVE ALGORITHMS FOR LOCAL ACTIVE NOISE CONTROL , 2001 .

[11]  Alberto Gonzalez,et al.  Sound quality of low-frequency and car engine noises after active noise control , 2003 .

[12]  Francesco Piazza,et al.  Adaptive Feedback Active Noise Control for Yacht Environments , 2014, IEEE Transactions on Control Systems Technology.

[13]  Tae-Gyu Chang,et al.  Performance analysis of an adaptive feedback active noise control based earmuffs system , 2015 .

[14]  Jordan Cheer,et al.  Modeling local active sound control with remote sensors in spatially random pressure fields. , 2015, The Journal of the Acoustical Society of America.

[15]  Boaz Rafaely,et al.  LOCAL ACTIVE SOUND CONTROL USING 2-NORM AND ∞-NORM PRESSURE MINIMIZATION , 2000 .

[16]  S. Elliott,et al.  In-flight experiments on the active control of propeller-induced cabin noise , 1989 .

[17]  Sen M. Kuo,et al.  Active Noise Control Systems: Algorithms and DSP Implementations , 1996 .

[18]  Jordan Cheer,et al.  Multichannel control systems for the attenuation of interior road noise in vehicles , 2015 .

[19]  Philip A. Nelson,et al.  Active Control of Sound , 1992 .

[20]  Roshun Paurobally,et al.  Improving active control of fan noise with automatic spectral reshaping for reference signal , 2015 .

[21]  Wim Desmet,et al.  Active sound quality control of engine induced cavity noise , 2009 .

[22]  Hugo Fastl.  The Psychoacoustics of Sound-Quality Evaluation , 1996 .

[23]  Philip A. Nelson,et al.  Active control of vibration, 1st edition , 1996 .

[24]  Sen M. Kuo,et al.  Active noise control: a tutorial review , 1999, Proc. IEEE.