Measurement of gearbox efficiency by strain gauges: Direct application

Result code in 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>

Alternative codes found

RIV/68407700:21460/20:00350464

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Measurement of gearbox efficiency by strain gauges: Direct application

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/TH01020152" target="_blank" >TH01020152: Development of a new series of planetary gearboxes, with flexible pin technology, for industrial and energy applications, in order to minimize overall dimensions, weight and internal transmission losses.</a><br>

Continuities

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

Publication year

2020

Confidentiality

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

Article name in the collection

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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Number of pages

13

Pages from-to

283-295

Publisher name

Czech Society for Mechanics

Place of publication

Brno

Event location

Sobotín

Event date

Oct 19, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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