Feedforward Control of a Light-Weight Device Casing for Active Noise Reduction

• Autorzy: Wrona S. , Pawelczyk M.

Identyfikatory

DOI

10.1515/aoa-2016-0048

• Języki publikacji: EN

Abstrakty

EN

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 publications. In this paper, a light-weight casing is investigated, where vibrational couplings between walls are much greater due to lack of a rigid frame. A laboratory setup is described in details. The influence of the cross-paths on successful global noise reduction is considered. Multiple vibration actuators are installed on each of the casing walls. An adaptive control strategy based on the Least Mean Square (LMS) algorithm is used to update control filter parameters. Obtained results are reported, discussed, and conclusions for future research are drawn.

Słowa kluczowe

EN

active control; flexible structures; active noise control; active vibration control; active structural acoustic control; active casing

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2016
• Tom: Vol. 41, No. 3
• Strony: 499--505
• Opis fizyczny: Bibliogr. 20 poz., rys., wykr., fot.

Twórcy

autor

Wrona S.

• Institute of Automatic Control, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland

autor

Pawelczyk M.

• Institute of Automatic Control, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland

Bibliografia

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• 15. WRONA S., PAWELCZYK М. (2015), Active reduction of device narrowband noise by controlling vibration of its casing based on structural sensors, [in:] Proceedings of 22nd International Congress on Sound and Vibration, Florence, Italy, 12–16 July.
• 16. Wrona S., Pawelczyk M. (2016a), Optimal placement of actuators for active structural acoustic control of a light-weight device casing, [in:] Proceedings of 23th International Congress on Sound and Vibration.
• 17. Wrona S., Pawelczyk M. (2016b), Shaping frequency response of a vibrating plate for passive and active control applications by simultaneous optimization of arrangement of additional masses and ribs. Part I: Modeling, Mechanical Systems and Signal Processing, 70–71, 682–698.
• 18. WRONA S., PAWELCZYK M. (2016c), Shaping frequency response of a vibrating plate for passive and active control applications by simultaneous optimization of arrangement of additional masses and ribs. Part II: Optimization, Mechanical Systems and Signal Processing, 70-71, 699-713.
• 19. ZAWIESKA W., RDZANEK W. (2006), Low frequency approximation of mutual modal radiation efficiency of a vibrating rectangular plate, Archives of Acoustics, 31, 4 (Supplement), 123-130.
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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.