Influence of Water Contamination, Iron Particles, and Energy Input on the NVH Behavior of Wet Clutches

The driving comfort and safety of the automotive powertrain are significantly related to the performance, lifetime, and functionality of the lubricant. The presented study focuses on investigating the performance loss of the lubricant due to water contamination resulting from environmental influence...

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Main Authors: Johannes Wirkner, Mirjam Baese, Astrid Lebel, Hermann Pflaum, Katharina Voelkel, Lukas Pointner-Gabriel, Charlotte Besser, Thomas Schneider, Karsten Stahl
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Lubricants
Subjects:
Online Access:https://www.mdpi.com/2075-4442/11/11/459
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author Johannes Wirkner
Mirjam Baese
Astrid Lebel
Hermann Pflaum
Katharina Voelkel
Lukas Pointner-Gabriel
Charlotte Besser
Thomas Schneider
Karsten Stahl
author_facet Johannes Wirkner
Mirjam Baese
Astrid Lebel
Hermann Pflaum
Katharina Voelkel
Lukas Pointner-Gabriel
Charlotte Besser
Thomas Schneider
Karsten Stahl
author_sort Johannes Wirkner
collection DOAJ
description The driving comfort and safety of the automotive powertrain are significantly related to the performance, lifetime, and functionality of the lubricant. The presented study focuses on investigating the performance loss of the lubricant due to water contamination resulting from environmental influences and iron particles originating from the wear of different machine elements. The main purpose is to determine critical factors that contribute to the degradation of the lubricant, and increase the tendency to NVH behavior, leading to adverse comfort losses to the respective user. Therefore, this performance loss is evaluated by test rig-based analysis of the friction behavior of wet clutches. Due to physical adsorption, a significant impact of water and iron contamination on the degradation of the lubricant is found, while the influence of the energy input is secondary.
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spelling doaj.art-ab41ce75189846878393fb1a76da669e2023-11-24T14:52:43ZengMDPI AGLubricants2075-44422023-10-01111145910.3390/lubricants11110459Influence of Water Contamination, Iron Particles, and Energy Input on the NVH Behavior of Wet ClutchesJohannes Wirkner0Mirjam Baese1Astrid Lebel2Hermann Pflaum3Katharina Voelkel4Lukas Pointner-Gabriel5Charlotte Besser6Thomas Schneider7Karsten Stahl8Gear Research Center (FZG), Department of Mechanical Engineering, School of Engineering and Design, Technical University of Munich, Boltzmannstrasse 15, D-85748 Garching, GermanyMagna Powertrain GmbH & Co. KG, Industriestrasse 35, A-8502 Lannach, AustriaAC2T Research GmbH, Viktor-Kaplan-Strasse 2/C, A-2700 Wiener Neustadt, AustriaGear Research Center (FZG), Department of Mechanical Engineering, School of Engineering and Design, Technical University of Munich, Boltzmannstrasse 15, D-85748 Garching, GermanyGear Research Center (FZG), Department of Mechanical Engineering, School of Engineering and Design, Technical University of Munich, Boltzmannstrasse 15, D-85748 Garching, GermanyGear Research Center (FZG), Department of Mechanical Engineering, School of Engineering and Design, Technical University of Munich, Boltzmannstrasse 15, D-85748 Garching, GermanyAC2T Research GmbH, Viktor-Kaplan-Strasse 2/C, A-2700 Wiener Neustadt, AustriaGear Research Center (FZG), Department of Mechanical Engineering, School of Engineering and Design, Technical University of Munich, Boltzmannstrasse 15, D-85748 Garching, GermanyGear Research Center (FZG), Department of Mechanical Engineering, School of Engineering and Design, Technical University of Munich, Boltzmannstrasse 15, D-85748 Garching, GermanyThe driving comfort and safety of the automotive powertrain are significantly related to the performance, lifetime, and functionality of the lubricant. The presented study focuses on investigating the performance loss of the lubricant due to water contamination resulting from environmental influences and iron particles originating from the wear of different machine elements. The main purpose is to determine critical factors that contribute to the degradation of the lubricant, and increase the tendency to NVH behavior, leading to adverse comfort losses to the respective user. Therefore, this performance loss is evaluated by test rig-based analysis of the friction behavior of wet clutches. Due to physical adsorption, a significant impact of water and iron contamination on the degradation of the lubricant is found, while the influence of the energy input is secondary.https://www.mdpi.com/2075-4442/11/11/459wet clutchshudderNVHwater contaminationiron particlesenergy input
spellingShingle Johannes Wirkner
Mirjam Baese
Astrid Lebel
Hermann Pflaum
Katharina Voelkel
Lukas Pointner-Gabriel
Charlotte Besser
Thomas Schneider
Karsten Stahl
Influence of Water Contamination, Iron Particles, and Energy Input on the NVH Behavior of Wet Clutches
Lubricants
wet clutch
shudder
NVH
water contamination
iron particles
energy input
title Influence of Water Contamination, Iron Particles, and Energy Input on the NVH Behavior of Wet Clutches
title_full Influence of Water Contamination, Iron Particles, and Energy Input on the NVH Behavior of Wet Clutches
title_fullStr Influence of Water Contamination, Iron Particles, and Energy Input on the NVH Behavior of Wet Clutches
title_full_unstemmed Influence of Water Contamination, Iron Particles, and Energy Input on the NVH Behavior of Wet Clutches
title_short Influence of Water Contamination, Iron Particles, and Energy Input on the NVH Behavior of Wet Clutches
title_sort influence of water contamination iron particles and energy input on the nvh behavior of wet clutches
topic wet clutch
shudder
NVH
water contamination
iron particles
energy input
url https://www.mdpi.com/2075-4442/11/11/459
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