Vibration reduction on circular saw blades with vibroacoustic metamaterials

• Autorzy: Rieß Sebastian , Kaal William , Herold Sven

Identyfikatory

DOI

10.24425/bpasts.2023.147921

• Języki publikacji: EN

Abstrakty

EN

The presented work focuses on the experimental investigation of a vibroacoustic metamaterial integrated into a spinning circular saw blade. Vibroacoustic metamaterials are a novel technology for broadband vibration reduction. Built from an array of local resonators, a broadband vibration reduction characteristic in the frequency domain (a so-called stop band) can be achieved. A design of a vibroacoustic metamaterial suitable for integration into a circular saw blade is developed and a numerical stop band prediction is performed. The resonators of the vibroacoustic metamaterial are integrated into the saw blade with a water jet cutting machine to create slots, forming flaps that are free to oscillate. The structural dynamic behavior of the saw blade with integrated vibroacoustic metamaterial is experimentally investigated on a rotor dynamic test bench and compared to that of a standard saw blade. The saw blades are excited by an automatic impulse hammer and the resulting out-of-plane vibrations are measured with a laser vibrometer at two different radii. Measurements are conducted at different rotational speeds up to 1800 rpm. Up to rotational speeds of 1000 rpm a stop band characteristic in the frequency range of 1900–2500 Hz is observed.

Słowa kluczowe

EN

circular saw blade; vibroacoustic metamaterial

PL

piła tarczowa; metamateriał wibroakustyczny

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2023
• Tom: Vol. 71, nr 6
• Strony: art. no. e147921
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Rieß Sebastian

• Fraunhofer Institute for Structural Durability and System Reliability LBF, 64298, Darmstadt, Germany

• https://orcid.org/0000-0001-5799-9183

autor

Kaal William

• Fraunhofer Institute for Structural Durability and System Reliability LBF, 64298, Darmstadt, Germany

• https://orcid.org/0000-0002-7526-3599

autor

Herold Sven

• Fraunhofer Institute for Structural Durability and System Reliability LBF, 64298, Darmstadt, Germany

• https://orcid.org/0000-0002-0275-4071

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).