Measurement of gearbox efficiency by strain gauges: Direct application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F20%3A00350464" target="_blank" >RIV/68407700:21220/20:00350464 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21460/20:00350464

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of gearbox efficiency by strain gauges: Direct application

Popis výsledku v původním jazyce

Experimental determination of gearboxes efficiency provides important information. The use of specialized torque-sensors is, however, often complicated. Thus, we engage in experimental determination of the efficiency by direct strain gauges application. To achieve meaningful results, the calibration quality and strain gauges location are crucial. There is also an effort to increase the overall apparatus sensitivity by placing strain gauges in notches vicinity. To make the apparatus as light as possible, the amplifiers were replaced by 24 bits AD-converter. Places for the strain gauges installation are selected using FEM analysis. This analysis is used as a "virtual" calibration of the apparatus at the same time. Currently tested gearbox for city rail-vehicle was mounted in the measuring stand in full compliance with its real installation. Strain gauges were installed directly at the input shaft and at the output both, on the shaft and on Hirt teething on coupling hub. The presented method demonstrates reliable interpretation of results from measurements with conventional foil wire strain gauges far beyond their commonly declared sensitivity at the level of about 2 MPa. Furthermore, it brings a proposal how to define realistic uncertainities of the measured data considering calculated directly from raw data set without any filtering or other processing to eliminate the noise or in contrary highlight the points of interest.

Název v anglickém jazyce

Measurement of gearbox efficiency by strain gauges: Direct application

Popis výsledku anglicky

Experimental determination of gearboxes efficiency provides important information. The use of specialized torque-sensors is, however, often complicated. Thus, we engage in experimental determination of the efficiency by direct strain gauges application. To achieve meaningful results, the calibration quality and strain gauges location are crucial. There is also an effort to increase the overall apparatus sensitivity by placing strain gauges in notches vicinity. To make the apparatus as light as possible, the amplifiers were replaced by 24 bits AD-converter. Places for the strain gauges installation are selected using FEM analysis. This analysis is used as a "virtual" calibration of the apparatus at the same time. Currently tested gearbox for city rail-vehicle was mounted in the measuring stand in full compliance with its real installation. Strain gauges were installed directly at the input shaft and at the output both, on the shaft and on Hirt teething on coupling hub. The presented method demonstrates reliable interpretation of results from measurements with conventional foil wire strain gauges far beyond their commonly declared sensitivity at the level of about 2 MPa. Furthermore, it brings a proposal how to define realistic uncertainities of the measured data considering calculated directly from raw data set without any filtering or other processing to eliminate the noise or in contrary highlight the points of interest.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/TH01020152" target="_blank" >TH01020152: Vývoj nové řady průmyslových planetových převodovek pro energetiku s pružným čepem za účelem minimalizace rozměrů, hmotnosti a zvýšení účinnosti převodového ústrojí.</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

58th Conference on Experimental Stress Analysis - Book of Full Papers

ISBN

978-80-248-4451-0

ISSN

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e-ISSN

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Počet stran výsledku

13

Strana od-do

283-295

Název nakladatele

Czech Society for Mechanics

Místo vydání

Brno

Místo konání akce

Sobotín

Datum konání akce

19. 10. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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