Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...
Transcript of Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...
![Page 1: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/1.jpg)
October 30, 2007 © SKF Group Slide 0
![Page 2: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/2.jpg)
Slijtage in hoogbelastegesmeerde contacten
Presented to:
Bijeenkomst Bond voor Materialenkennis, Aludra, Vlaardingen
Presented by:
Dr. ir. Mark van Drogen,
team leader Functional Surfaces
SKF/Engineering and Research Centre
2011-04-27
![Page 3: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/3.jpg)
October 30, 2007 © SKF Group Slide 2
Intro SKF
![Page 4: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/4.jpg)
October 30, 2007 © SKF Group Slide 3
SKF Engineering & Research Centre
The SKF Engineering Research Centre (SKF ERC) is located in the SKF Business & Technology Park in Nieuwegein, the Netherlands.
The SKF Engineering & Research Centre has been established in 1972 as the core of SKF Research & Development.
![Page 5: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/5.jpg)
October 30, 2007 © SKF Group Slide 4
SKF Engineering & Research Centre
• High level R&D through over a 100 research professionals from more than 25 countries
• Technology for the SKF Platforms
• Product development support the SKF Divisions
• Specialized application support for SKF Customers
![Page 6: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/6.jpg)
October 30, 2007 © SKF Group Slide 5
Organisation ERC
Based on Competence Areas
Located in Five departments
• Lubrication & Metallic Materials• Sealing & Functional surfaces
• Modelling & Simulation
• Mechatronics
• Testing
![Page 7: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/7.jpg)
October 30, 2007 © SKF Group Slide 6
Competence Areas in SKF ERC
• Steel & Heat treatment
• Ceramics
• Coating
• Polymers & Elastomers
• Sealing
• Lubrication
• Tribo-Chemistry
• Computer modelling & simulation
• Mechatronics
• Testing
• Tribology & Functional Surfaces
cameraLight source
wire connecting cage with camera set-up
rotating holder for visualisation set-up, incl. slip ring
bearing (not visible)
cameraLight source
wire connecting cage with camera set-up
rotating holder for visualisation set-up, incl. slip ring
bearing (not visible)
![Page 8: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/8.jpg)
October 30, 2007 © SKF Group Slide 7
Bearing Life – Drivers
![Page 9: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/9.jpg)
October 30, 2007 © SKF Group Slide 8
Multi-Scale Modelling in Tribology
Bearing analysisSystem analysis Surface analysis
![Page 10: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/10.jpg)
October 30, 2007 © SKF Group Slide 9
Tribology Models for In-Contact Topography and Tribochemistry Behavior
1. Fast models for gap, pressure,temperature and stressvariations inside a lubricated contact:
Stresses
Roughness
Pressures
2. Tribochemisty:
![Page 11: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/11.jpg)
October 30, 2007 © SKF Group Slide 10
Friction
Film Thickness & Friction Detailed Measurement
![Page 12: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/12.jpg)
October 30, 2007 © SKF Group Slide 11
Surface Topography Optimisation
transverse longitudinal
bi-sinusoidal combined orientation
• Film Build-up• Friction• Temperatures• Pressures• Life
![Page 13: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/13.jpg)
October 30, 2007 © SKF Group Slide 12
Wear and Failure diagrams
![Page 14: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/14.jpg)
October 30, 2007 © SKF Group Slide 13
Lubricated Wear Mechanisms
1. Abrasive wear 2. Adhesive wear
3. Tribo-Chemical wear 4. (sub)surface Fatigue wear
…and combinations!
![Page 15: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/15.jpg)
October 30, 2007 © SKF Group Slide 14
F/v Transition Diagram
Transition from mild to severe adhesive wear
![Page 16: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/16.jpg)
October 30, 2007 © SKF Group Slide 15
Lines of defense against adhesive wear
1. EHL films
2. Surface/boundary films
3. Material strength
1à 2 Stribeck curve:
mild wear
![Page 17: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/17.jpg)
October 30, 2007 © SKF Group Slide 16
Pin-on-disk measurements
Oil A: fully formulated transmission oil
Oil B: mineral white oil (no additives)
![Page 18: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/18.jpg)
October 30, 2007 © SKF Group Slide 17
F/v Transition Diagram Modelling
![Page 19: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/19.jpg)
October 30, 2007 © SKF Group Slide 18
F/v Transition Diagram Modelling
Failure Hypothesis: critical oil temperature à
boundary layers cannot withstand the heat in the contact.
Analytical Modelling Approach
1. Deformation Model2. Friction Model
3. Temperature Model
Include deterministic roughness description
Source: M. van Drogen, 2005, Transition to adhesive wear in lubricated concentrated contacts, Ph.D. Thesis, University of Twente.
![Page 20: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/20.jpg)
October 30, 2007 © SKF Group Slide 19
Roughess description: 9 points summit definition
![Page 21: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/21.jpg)
October 30, 2007 © SKF Group Slide 20
Deformation/Pressure Model
• Macroscopic deformation: Hertzian
• Microscopic/Summit deformation:(1) Elastic, (2) Elasto-Plastic or (3) Plastic
![Page 22: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/22.jpg)
October 30, 2007 © SKF Group Slide 21
Deformation Modelling - example
![Page 23: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/23.jpg)
October 30, 2007 © SKF Group Slide 22
Friction Model
Stribeck curve included, according to
Load is carried by both EHL film and BL-asperities
![Page 24: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/24.jpg)
October 30, 2007 © SKF Group Slide 23
Temperature Model
Blok’s flash temperatures:no roughness
Microscale flash temperatures:so incl. roughness
![Page 25: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/25.jpg)
October 30, 2007 © SKF Group Slide 24
Asperity temperatures
Temperature rise
Low speed/Péclet: mainly conduction
High speed/Peclet: mainly convection
![Page 26: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/26.jpg)
October 30, 2007 © SKF Group Slide 25
Flash Temperatures - example
![Page 27: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/27.jpg)
October 30, 2007 © SKF Group Slide 26
F/v diagram modelling – critical temperatures
![Page 28: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/28.jpg)
October 30, 2007 © SKF Group Slide 27
Critical oil temperature determination
Pin-on-disk experiment for mineral white oil (oil B): low F and low v (no frictional heat)
and heat up the oil until adhesive wear
![Page 29: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/29.jpg)
October 30, 2007 © SKF Group Slide 28
Parameter study and validation
![Page 30: Presentation to Bond voor Materialenkennis - 27 april 2011 - Mark ...](https://reader034.fdocuments.us/reader034/viewer/2022051521/586787991a28abb9408bd25c/html5/thumbnails/30.jpg)
October 30, 2007 © SKF Group Slide 29
Bedankt voor uw aandacht!