Effect of inerter in traditional and variant dynamic vibration absorbers for one degree-of-freedom systems subjected to base excitations

• Autorzy: Barathwaaj Dheepakram Laxmimala , Yegateela Sujay , Vardhan Vivek , Suresh Vignesh , Kaliyannan Devarajan

Identyfikatory

DOI

10.2478/mme-2019-0002

• Języki publikacji: EN

Abstrakty

EN

In this paper, closed-form optimal parameters of inerter-based variant dynamic vibration absorber (variant IDVA) coupled to a primary system subjected to base excitation are derived based on classical fixed-points theory. The proposed variant IDVA is obtained by adding an inerter alone parallel to the absorber damper in the variant dynamic vibration absorber (variant DVA). A new set of optimum frequency and damping ratio of the absorber is derived, thereby resulting in lower maximum amplitudę magnification factor than the inerter-based traditional dynamic vibration absorber (traditional IDVA). Under the optimum tuning condition of the absorbers, it is proved both analytically and numerically that the proposed variant IDVA provides a larger suppression of resonant vibration amplitude of the primary system subjected to base excitation. It is demonstrated that adding an inerter alone to the variant DVA provides 19% improvement in vibration suppression than traditional IDVA when the mass ratio is less than 0.2 and the effective frequency bandwidth of the proposed IDVA is wider than the traditional IDVA. The effect of inertance and mass ratio on the amplitude magnification factor of traditional and variant IDVA is also studied.

Słowa kluczowe

EN

dynamic vibration absorber; minimax; Inerter; traditional IDVA; variant IDVA

PL

pochłaniacz drgań dynamiczny; Minimax; Inerter; IDVA

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 23, nr 1
• Strony: 9--16
• Opis fizyczny: Bibliogr. 23 poz., rys., wykr.

Twórcy

autor

Barathwaaj Dheepakram Laxmimala

• Department of Mechanical Engineering, Amrita of School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India

autor

Yegateela Sujay

• Department of Mechanical Engineering, Amrita of School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India

autor

Vardhan Vivek

• Department of Mechanical Engineering, Amrita of School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India

autor

Suresh Vignesh

• Department of Mechanical Engineering, Amrita of School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India

autor

Kaliyannan Devarajan

• Department of Mechanical Engineering, Amrita of School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).