Definitions
The active control of sound is realized with active noise reduction systems. These systems are made up of actuators, sensors and digital signal processing. Unlike classical passive sound control the active control of sound is especially effective at low frequencies. Active noise reduction systems are able to reduce unwanted sound with a minimum of added mass and volume which makes them useful for lightweight applications for example in the automotive or aerospace industry.
Abbreviations
- AMP:
-
Amplifier
- ANC:
-
Active noise control
- ANVC:
-
Active noise vibration control
- ASAC:
-
Active structural acoustic control
- AVC:
-
Active vibration control
- CFRP:
-
Carbon fiber reinforced plastics
- CROR:
-
Counter-rotating open rotor
- EF:
-
Eigenfrequency
- EMI:
-
Electromagnetic interference
- FIR:
-
Finite impulse response filter
- FRF:
-
Frequency response...
References
Elliott S (2001) Signal processing for active control. Academic Press, San Diego
Fahy F, Gardonio P (2007) Sound and structural vibration: radiation, transmission and response, 2nd edn. Academic Press, Oxford
Kuo S, Morgan D (1995) Active noise control systems: algorithms and DSP implementations. Wiley, New York
Misol M (2014) Aktive Steuerung des Transmissionsverhaltens stochastischer Störquellen durch flächige Leichtbaustrukturen [Active feedforward control of the transmission of stochastic disturbances through lightweight panel structures]. DLR-Forschungsbericht 2014-38, Technische Universität Carolo-Wilhelmina zu Braunschweig, Köln. http://elib.dlr.de/99510/
Misol M (2019) Active sidewall panels with remote microphone technique for aircraft interior noise reduction. In: 26th international congress on sound and vibration
Misol M, Algermissen S, Monner HP (2013) Experimental study of an active window for silent and comfortable vehicle cabins. In: Sinapius M, Wiedemann M (eds) Adaptive, tolerant and efficient composite structures, research topics in aerospace, chap 36. Springer, Berlin/Heidelberg, pp 439–447. https://doi.org/10.1007/978-3-642-29190-6
Misol M, Algermissen S, Rose M, Monner HP (2018) Aircraft lining panels with low-cost hardware for active noise reduction. In: Joint conference acoustics 2018. https://elib.dlr.de/122049/
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Misol, M., Algermissen, S., Haase, T. (2019). Active Control of Sound, Applications of. In: Altenbach, H., Öchsner, A. (eds) Encyclopedia of Continuum Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-53605-6_282-1
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DOI: https://doi.org/10.1007/978-3-662-53605-6_282-1
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