Closed-form smoothers and shapers with distributed delay for damped oscillatory modes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21730%2F16%3A00307931" target="_blank" >RIV/68407700:21730/16:00307931 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/16:00307931

Výsledek na webu

<a href="http://dx.doi.org/10.1049/iet-cta.2015.1337" target="_blank" >http://dx.doi.org/10.1049/iet-cta.2015.1337</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1049/iet-cta.2015.1337" target="_blank" >10.1049/iet-cta.2015.1337</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Closed-form smoothers and shapers with distributed delay for damped oscillatory modes

Popis výsledku v původním jazyce

The study deals with parametrisation of input shapers and smoothers with distributed delays, which are a common tool used for pre-compensating oscillatory modes of flexible systems. These filtering structures can be easily parametrised, if the oscillatory mode is undamped, leading to fully analytical formulas. For the damped case, however, the parametrisation needs to be done numerically as a rule. Utilising a straightforward complex domain transformation, as the main results, the structure of the filters is turned to the closed-form that can be parametrised analytically for the damped case too. The adjusted smoothers and shapers accommodate the reference and the system output signals without vibration at the same time lengths like the preforms for the undamped case. This methodology is applied to Trapezoidal, S-curve and Trigonometric smoothers, Jerk Limited shaper and recently proposed Zero Vibration shaper with a distributed delay. The proposed new types of smoothers and shapers, which are essentially based on exponential distribution of delays, are investigated in time and frequency domains. Subsequently, the basic properties, i.e. response performances, spectrum distribution and robustness analysis, are demonstrated and cross-compared in a case study example.

Název v anglickém jazyce

Closed-form smoothers and shapers with distributed delay for damped oscillatory modes

Popis výsledku anglicky

The study deals with parametrisation of input shapers and smoothers with distributed delays, which are a common tool used for pre-compensating oscillatory modes of flexible systems. These filtering structures can be easily parametrised, if the oscillatory mode is undamped, leading to fully analytical formulas. For the damped case, however, the parametrisation needs to be done numerically as a rule. Utilising a straightforward complex domain transformation, as the main results, the structure of the filters is turned to the closed-form that can be parametrised analytically for the damped case too. The adjusted smoothers and shapers accommodate the reference and the system output signals without vibration at the same time lengths like the preforms for the undamped case. This methodology is applied to Trapezoidal, S-curve and Trigonometric smoothers, Jerk Limited shaper and recently proposed Zero Vibration shaper with a distributed delay. The proposed new types of smoothers and shapers, which are essentially based on exponential distribution of delays, are investigated in time and frequency domains. Subsequently, the basic properties, i.e. response performances, spectrum distribution and robustness analysis, are demonstrated and cross-compared in a case study example.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BC - Teorie a systémy řízení

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

IET Control Theory and Applications

ISSN

1751-8644

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

2534-2542

Kód UT WoS článku

000393068500020

EID výsledku v databázi Scopus

2-s2.0-85006784367