Selection of the optimal design for a vibro-impact nonlinear energy sink

Authors

DOI:

https://doi.org/10.32347/2410-2547.2023.111.13-24

Keywords:

vibro-impact, primary structure, damper, nonlinear energy sink, synergistic effect

Abstract

The efficiency of a vibro-impact nonlinear energy sink (VI NES), that is, a vibro-impact damper, is largely determined by its design. The optimal damper design can be found through optimization procedures. However, the result of their work is ambiguous, their various options show different values of the optimal damper parameters. A thorough analysis of the obtained parameters values allow you to select the best option according to a certain criterion. While carrying out this analysis, we observe many interesting phenomena, namely, the synergistic effect of multiple parameters, rich complex dynamics of the VI NES, the presence of direct impacts between the damper and the main body, the dependence of the total energy on the exciting force parameters.The analysis also allows us to formulate the limitations of the VI NES. All these problems are reflected in this article.

Author Biographies

Petro Lizunov, Kyiv National University of Construction and Architecture

Doctor of Technical Sciences, Professor, Head of the Department of Construction Mechanics of KNUBA

Olha Pogorelova, Kyiv National University of Construction and Architecture

candidate of physical and mathematical sciences, senior researcher, leading researcher of the Research Institute of Construction Mechanics

Tetiana Postnikova, Kyiv National University of Construction and Architecture

candidate of technical sciences, senior researcher, senior researcher of the Research Institute of Construction Mechanics

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Published

2023-11-24

Issue

No. 111 (2023)

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