Course detail
Elastohydrodynamics
FSI-9EHD Acad. year: 2020/2021 Both semester
The overall aim of this course is to provide students with a general and useful introduction to the main concepts and principles of elastohydrodynamic (EHD) lubrication. It is the mechanism of lubrication that describes the separation by a lubricant film between two elastic non conforming machine elements loaded against each other, and in relative motion. The course covers introduction to EHD lubrication, the fundamentals required in understanding EHD lubrication and in-depth study of selected topics related to EHD lubrication.
Language of instruction
Czech
Supervisor
Department
Learning outcomes of the course unit
After completing the course the student manages the theoretical solution of essential problems associated with the EHD lubrication regime.
Prerequisites
General courses on mechanics, machine design, material sciences and hydromechanics.
Planned learning activities and teaching methods
Lectures, seminars, self-study.
Assesment methods and criteria linked to learning outcomes
The evaluation of students is based on the solution of four tasks in the field of contact problems, elastohydrodynamic lubrication, fluid film friction and wear.
Aims
The aim of the course is to introduce students to theoretical fundamentals of elastohydrodynamic lubrication regime.
Specification of controlled education, way of implementation and compensation for absences
Teaching has a form of consultation and discussion on a given theme at arranged times.
The study programmes with the given course
Programme D-KPI-P: Design and Process Engineering, Doctoral, recommended course
Type of course unit
Lecture
20 hours, compulsory
Syllabus
1. Material Properties. Lubricant Rheology.
2. Elastostatic Contacts.
3. Governing Equations of EHD Lubrication.
4. Simple Concepts of Non-conforming Contact Lubrication.
5. Numerical Methods for EHD Lubrication Problem Solution.
6. Friction and Non-linear Lubricant Behavior in EHD Contacts.
7. Stress and Fatigue in EHD Contacts.
8. Micro-EHD lubrication and mixed EHD lubrication.
9. Transient EHD lubrication.
10. Temperature and Abnormal Phenomena.