last modified:09/02/2005

Coursecode: wb5303

Coursename: Tribology / Design for lifetime performance and reliability

ECTS creditpoints: 3

Faculty of Mechanical Engineering and Marine Technology

Lecturer(s): Dr.ir. Anton van Beek

Tel.:  015-27 86984

Catalog data:
 

Service life, performance and reliability of machines and mechanism. Friction, wear, lubrication, fatigue, failure analysis, hard wearing materials, lubricant selection.

 

Course year:

BSc 3rd year

Period:

2A

Hours per week:

4

Other hours:

2 (e-learning)

Assessment:

written exam

Assessm.period:

2A, 2B

(see academic calendar)

 

Prerequisites: wb1220

Follow up: wb5400, wb2428-03

Detailed description of topics:
The machine runs, but for how long and what maintenance is required, what machine temperatures will occur? In this coarse the fundamental aspects of service life, reliability and performance of machines and mechanisms are treated. Subjects included are friction, frictional heating, loadability, stick-slip, accuracy, wear, reliability, maintenance, lubrication and material selection.

Course material:

Dr.ir. A. van Beek, Boek "Machine Lifetime Performance and Reliability", 432 pages., first edition 2004, Leeghwater shop.

References from literature:

See book references

Remarks assesment, entry requirements, etc.):

Learning goals:
1. Determining the load capability of concentrated contacts of intermeshing machine elements like the rail/wheel contact, gears, cam tappet mechanism and roller bearings (Hertz theory / contact mechanics).
2. Tools how to reduce friction and stick-slip.
3. Tools how to reduce wear and service life prediction of machines.
4. Failure analysis of machine elements like screw joints, transmissions, bearings, shafts.
5. Systematical material- and lubricant selection for surfaces in relative motion (polymers, composites, metals and engineering ceramics).
6. Trends and innovations in the area of lubricants and maintenance (predictive maintenance, maintenance engineering).
7. Designing advanced bearings like hydrodynamic-, hydrostatic- and air bearings applied to increase precision of motion, service life and reliability of machines.

Computer use:

e-learing see www.ocp.tudelft.nl/tribo/

Laboratory project(s):

Are included in wb5400, “Tribology of Machines”

Design content:

Design for lifetime performance and reliability.

Percentage of design:  100 %