Mechanical Shock Shape Calculation from Estimated Accelerometer Parameters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU124180" target="_blank" >RIV/00216305:26220/17:PU124180 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical Shock Shape Calculation from Estimated Accelerometer Parameters

Popis výsledku v původním jazyce

Mechanical shocks are often measured by piezoelectric accelerometers. This sensor type causes shock shape changes because it is essentially an under-damped second order dynamic system, therefore it filters sharp edges of shocks and adds damped oscillations. Because of a signal change occurring on a sensor, it is hard to calculate correctly a shock parameters or a shock response spectrum. Yet both are essential parameters for device testing. Extracting a shock shape from measured data is very complicated due to a signal noise and inaccuracies in sensor dynamic parameters. In this paper, we present a new method of calculation of an original shock shape and of a sensor dynamic parameters when a mechanical shock is measured by two accelerometers with different frequency spectrum. New method was tested on simulated data and verified during experiment which provided overall accuracy up to 5 %.

Název v anglickém jazyce

Mechanical Shock Shape Calculation from Estimated Accelerometer Parameters

Popis výsledku anglicky

Mechanical shocks are often measured by piezoelectric accelerometers. This sensor type causes shock shape changes because it is essentially an under-damped second order dynamic system, therefore it filters sharp edges of shocks and adds damped oscillations. Because of a signal change occurring on a sensor, it is hard to calculate correctly a shock parameters or a shock response spectrum. Yet both are essential parameters for device testing. Extracting a shock shape from measured data is very complicated due to a signal noise and inaccuracies in sensor dynamic parameters. In this paper, we present a new method of calculation of an original shock shape and of a sensor dynamic parameters when a mechanical shock is measured by two accelerometers with different frequency spectrum. New method was tested on simulated data and verified during experiment which provided overall accuracy up to 5 %.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/LO1210" target="_blank" >LO1210: Energie v podmínkách udržitelného rozvoje (EN-PUR)</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 24th International Congress on Sound and Vibration

ISBN

978-1-906913-27-4

ISSN

2329-3675

e-ISSN

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Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

Neuveden

Místo vydání

London

Místo konání akce

London

Datum konání akce

23. 7. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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