Projekt

Testing of Bearing Materials for Large Two-stroke Marine Diesel Engines

Udbyder

Vejleder

Sted

København og omegn

Fatigue mechanism of bearing lining material is not fully understood and the design limits with regards to minimum oil film thickness, max oil film pressure and oil film pressure gradient is not fully established. Large two-stroke journal bearings are not suitable for fatigue test due to the size, the low rotational speed and the complexity of such test-rig. The Disc Fatigue Test Rig (DTFR) is designed with the purpose to test white metal coatings under realistic bearing conditions, in a confined time-frame and to clarify some of the reasons and mechanisms for crack formation and growth in white metal lining due to fatigue.  The test-rig simulates a scale model of a thrust bearing. All parameters, such as bearing load, rotational speed, oil temperature is computer controlled to achieve good repeatability and a systematic approach to the experiments. Test performed on the test-rig shows good correlation on the fatigue cracks with those experienced on large two-stroke journal bearings. Our tests aims, for instance, to establish fatigue properties of standard white metal (HMO7) material, evaluate the influence of edge load and influence of bending stress in lining.

I samarbejde med

MAN Energy Solutions A/S

Søg i opslag
Kontakt

Virksomhed/organisation

DTU Mekanik

Navn

Peder Klit

Stilling

Ingeniørdocent

Mail

klit@mek.dtu.dk

Vejleder-info

Kandidatuddannelsen i Konstruktion og Mekanik

Vejleder

Peder Klit

ECTS-point

30 - 35

Type

Kandidatspeciale

Skal have taget

41524 Tribology

OM DTU

DTU er et teknisk eliteuniversitet med international rækkevidde og standard. Vores mission er at udvikle og nyttiggøre naturvidenskab og teknisk videnskab til gavn for samfundet. 10.000 studerende uddanner sig her til fremtiden, og 5.700 medarbejdere har hver dag fokus på uddannelse, forskning, myndighedsrådgivning og innovation, som bidrager til øget vækst og velfærd.

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Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby


45 25 25 25

dtu@dtu.dk

CVR-nr. 30 06 09 46

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