Approximated analytical frequency response of a pendulum structure attached with two orthogonal dynamic vibration absorbers

Authors

  • La Duc Viet Institute of Mechanics, Vietnam Academy of Science and Technology, Hanoi
  • Nguyen Ba Nghi Institute of Mechanics, Vietnam Academy of Science and Technology, Hanoi

DOI:

https://doi.org/10.15625/0866-7136/37/4/5920

Keywords:

Dynamic vibration absorber, pendulum structures, Coriolis force, equivalent linearization, frequency response

Abstract

Vibration of a pendulum can be reduced by single dynamic vibration absorbers (DVAs) moving in tangential or in normal direction of pendulum's orbit. The first DVA works in the linear zone while the second one works in the nonlinear zone. This paper uses the equivalent linearization technique to obtain an analytical form of the frequency response of a nonlinear pendulum structure, which is attached with both types of DVA. The numerical calculations are carried out to verify the analytical results. Some useful conclusions on the optimal parameters of the DVA can be found from the analytical solution.

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Published

26-11-2015

How to Cite

Viet, L. D., & Nghi, N. B. (2015). Approximated analytical frequency response of a pendulum structure attached with two orthogonal dynamic vibration absorbers. Vietnam Journal of Mechanics, 37(4), 275–284. https://doi.org/10.15625/0866-7136/37/4/5920

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Articles