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research-article

Experiment-based motion reconstruction and restitution coefficient estimation of a vibro-impact system

[+] Author and Article Information
Tao Li

SinoMed LifeTech (Shenzhen) Co., Ltd., 1505, Block T2, Ali Center, Nanshan District, Shenzhen, 518054 China
li_tao_lumiere@126.com

Sebastien Seguy

Université de Toulouse, ICA (Institut Clément Ader), CNRS, INSA, ISAE, UPS, Mines Albi, 3 rue Caroline Aigle, F-31077, Toulouse, FRANCE
seguy@insa-toulouse.fr

Claude-Henri Lamarque

Université de Lyon, École Nationale des Travaux Publics de l’État, LTDS UMR CNRS 5513, 3 rue Maurice Audin, 69518 Vaulx-en-Velin Cedex, France
claude.lamarque@entpe.fr

Alain Berlioz

Université de Toulouse, ICA (Institut Clément Ader), CNRS, INSA, ISAE, UPS, Mines Albi, 3 rue Caroline Aigle, F-31077, Toulouse, FRANCE
alain.berlioz@univ-tlse3.fr

1Corresponding author.

ASME doi:10.1115/1.4041367 History: Received March 10, 2018; Revised August 26, 2018

Abstract

The objective of this paper is to demonstrate the motion reconstruction and the parameter estimation of a vibro- impact system from limited experimental information. Based on the measured displacement and acceleration of its linear main system, the rest motion information such as the displacement and velocity of the attached vibro- impact energy sink can be calculated rather than difficult direct measurement, and therefore different response regimes from the strongly modulated response to the classic regime with two impacts per cycle are reconstructed. Consequently, it provides comprehensive experimental data for the validation of analytical and numerical results and for any experimental bifurcation analysis. Moreover, a procedure to estimate the restitution coefficient from periodic impacts is demonstrated. This new experimental approach to estimate the value of the restitution coefficient is simple and this accurate value could play an important role in analytical and numerical study.

Copyright (c) 2018 by ASME
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