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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/GA17-20943S" target="_blank" >GA17-20943S: Aktivní vícerozměrné hltiče vibrací složitých mechanických konstrukcí založené na metodě zpožděného rezonátoru</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

5th Indian Control Conference

ISBN

9781538662465

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

448-453

Název nakladatele

Institute of Electrical and Electronics Engineers, Inc.

Místo vydání

—

Místo konání akce

Delphi

Datum konání akce

9. 1. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000470655700081