Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental Investigations

The efficiency of bevel and hypoid gears is, alongside load capacity, one of their most important design criteria. To consider the efficiency of bevel and hypoid gears during the development and design process, validated calculation methods based on experimental investigations are necessary. However...

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Main Authors: Lorenz Constien, Martin Weber, Josef Pellkofer, Karsten Stahl
Format: Article
Language:English
Published: MDPI AG 2024-09-01
Series:Machines
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Online Access:https://www.mdpi.com/2075-1702/12/9/647
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author Lorenz Constien
Martin Weber
Josef Pellkofer
Karsten Stahl
author_facet Lorenz Constien
Martin Weber
Josef Pellkofer
Karsten Stahl
author_sort Lorenz Constien
collection DOAJ
description The efficiency of bevel and hypoid gears is, alongside load capacity, one of their most important design criteria. To consider the efficiency of bevel and hypoid gears during the development and design process, validated calculation methods based on experimental investigations are necessary. However, the isolated experimental investigation of the load-dependent power losses of bevel and hypoid gears has not been adequately investigated, as most of the experimental investigations consider the complete gearbox. This paper presents a test rig that allows for the experimental investigation of the efficiency of bevel and hypoid gears with a measurement uncertainty of the efficiency of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>∆</mo><mi>η</mi><mo>≤</mo><mo>±</mo><mn>0.08</mn><mo>%</mo></mrow></semantics></math></inline-formula> according to the Guide to the Expression of Uncertainty in Measurement (GUM). Using the developed test rig, experimental investigations on the efficiency behavior of bevel and hypoid gears regarding the influence of the axial offset, driving direction, and microgeometry are carried out for different operating points varying in circumferential speed and load. This paper discusses the methodology and the first experimental results of a study on the efficiency of bevel and hypoid gears in detail.
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spelling doaj-art-effcce37d26843bab1c29bbd4e7a9c5a2025-08-20T01:55:38ZengMDPI AGMachines2075-17022024-09-0112964710.3390/machines12090647Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental InvestigationsLorenz Constien0Martin Weber1Josef Pellkofer2Karsten Stahl3Gear Research Center (FZG), TUM School of Engineering and Design, Technical University of Munich, Boltzmannstraße 15, D-85748 Garching near Munich, GermanyGear Research Center (FZG), TUM School of Engineering and Design, Technical University of Munich, Boltzmannstraße 15, D-85748 Garching near Munich, GermanyGear Research Center (FZG), TUM School of Engineering and Design, Technical University of Munich, Boltzmannstraße 15, D-85748 Garching near Munich, GermanyGear Research Center (FZG), TUM School of Engineering and Design, Technical University of Munich, Boltzmannstraße 15, D-85748 Garching near Munich, GermanyThe efficiency of bevel and hypoid gears is, alongside load capacity, one of their most important design criteria. To consider the efficiency of bevel and hypoid gears during the development and design process, validated calculation methods based on experimental investigations are necessary. However, the isolated experimental investigation of the load-dependent power losses of bevel and hypoid gears has not been adequately investigated, as most of the experimental investigations consider the complete gearbox. This paper presents a test rig that allows for the experimental investigation of the efficiency of bevel and hypoid gears with a measurement uncertainty of the efficiency of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>∆</mo><mi>η</mi><mo>≤</mo><mo>±</mo><mn>0.08</mn><mo>%</mo></mrow></semantics></math></inline-formula> according to the Guide to the Expression of Uncertainty in Measurement (GUM). Using the developed test rig, experimental investigations on the efficiency behavior of bevel and hypoid gears regarding the influence of the axial offset, driving direction, and microgeometry are carried out for different operating points varying in circumferential speed and load. This paper discusses the methodology and the first experimental results of a study on the efficiency of bevel and hypoid gears in detail.https://www.mdpi.com/2075-1702/12/9/647bevel gearshypoid gearsefficiencytest rigmeasuring conceptlosses
spellingShingle Lorenz Constien
Martin Weber
Josef Pellkofer
Karsten Stahl
Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental Investigations
Machines
bevel gears
hypoid gears
efficiency
test rig
measuring concept
losses
title Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental Investigations
title_full Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental Investigations
title_fullStr Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental Investigations
title_full_unstemmed Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental Investigations
title_short Efficiency of Bevel and Hypoid Gears—Test Rig Development and Experimental Investigations
title_sort efficiency of bevel and hypoid gears test rig development and experimental investigations
topic bevel gears
hypoid gears
efficiency
test rig
measuring concept
losses
url https://www.mdpi.com/2075-1702/12/9/647
work_keys_str_mv AT lorenzconstien efficiencyofbevelandhypoidgearstestrigdevelopmentandexperimentalinvestigations
AT martinweber efficiencyofbevelandhypoidgearstestrigdevelopmentandexperimentalinvestigations
AT josefpellkofer efficiencyofbevelandhypoidgearstestrigdevelopmentandexperimentalinvestigations
AT karstenstahl efficiencyofbevelandhypoidgearstestrigdevelopmentandexperimentalinvestigations