Exploring Operational Frequency Ranges for Actively-Tuned Single-Mass, Multiple-Frequency Vibration Absorber

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00329671" target="_blank" >RIV/68407700:21220/19:00329671 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1109/INDIANCC.2019.8715571" target="_blank" >https://doi.org/10.1109/INDIANCC.2019.8715571</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/INDIANCC.2019.8715571" target="_blank" >10.1109/INDIANCC.2019.8715571</a>

Result language

angličtina

Original language name

Exploring Operational Frequency Ranges for Actively-Tuned Single-Mass, Multiple-Frequency Vibration Absorber

Original language description

A recent idea of developing an active control method over a single-mass tunable absorber is further explored in this study. Typically single-mass absorbers are designed to handle a single excitation frequency. In this paper we explore a novel control scheme to actively tune such an absorber to multiple frequencies concurrently. The game changer is the way we induce the spectral sensitivity to the absorber substructure. This sensitivity (a.k.a. tuning) of the absorber is achieved following the core idea of Delayed Resonator (DR) except a novel feedback control with multiple delays. We show that this method can tune the absorber to all the intended frequencies in real time. Therefore the new concept dramatically expands over the fixed-frequency absorption operations, for instance Dual Frequency Fixed Delayed Resonator (DFFDR) . We start the operation with a feedback control using a predetermined delay over a given passive absorber. Necessary control gains for proper tuning are evaluated vis-à-vis the tuning frequencies. The stability of the dynamics therefore depends directly on the selection of these frequencies. This study is anchored on the discovery of the potential stability regions in the domain of the frequencies using a numerical root finding tool, QPmR (Quasi-Polynomial Mapping Based Root finding). Most important highlight of the paper is to demonstrate that there can be multiple regions on the frequency space for stable MFDR. The results obtained are cross validated by selected dynamic simulation over an example case study.

Czech name

—

Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/GA17-20943S" target="_blank" >GA17-20943S: Active multidimensional vibration absorbers for complex mechanical structures based on delayed resonator method</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

5th Indian Control Conference

ISBN

9781538662465

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

448-453

Publisher name

Institute of Electrical and Electronics Engineers, Inc.

Place of publication

—

Event location

Delphi

Event date

Jan 9, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000470655700081