Thin Film Lubrication and Gas-Lubricated Bearings
ENG-649 / 2 credits
Teacher(s): Invited lecturers (see below), Schiffmann Jürg Alexander
Language: English
Remark: The course will take place from Tuesday June 10th to Friday June 13th, 2025 at Microcity (Neuchâtel campus). Deadline to register : May 16th, 2025 at 5pm. One time only.
Frequency
Only this year
Summary
This course introduces thin film lubrication and its applications to gas-lubricated bearings, including rotordynamics to enable the assessment of the operation of gas-bearing supported rotors.
Content
- Derivation of Reynolds equations
- Hydrodynamic slider bearing
- Infinite-length journal bearing
- Finite length slider
- Finite length aerodynamic bearing
- Dynamic grooved bearings
- Real gas effects
- Condensation
- Practical implementation of gas-lubricated bearings
- Rotordynamics
Note
Deadline to register: May 16th, 2025 at 7pm at the latest
Keywords
Thin film lubrication, gas-lubricated bearings, rotordynamics
Learning Prerequisites
Required courses
Fluid mechanics, dynamical systems
Learning Outcomes
By the end of the course, the student must be able to:
- Select appropriately models to design gas-bearing supported rotors as a function of the operating conditions and applications.
Assessment methods
Students will have to prepare a short report about the numerical implementation of two
problems chosen among the proposed ones. A presence of at least 75% of the lessons is requested together with the report to receive the credits.
In the programs
- Number of places: 15
- Exam form: Project report (session free)
- Subject examined: Thin Film Lubrication and Gas-Lubricated Bearings
- Courses: 28 Hour(s)
- Project: 6 Hour(s)
- Type: optional