Turbomachinery Laboratory   HOME

Hanyang University Department of Mechanical Engineering

Last revised: Nov. 15, 2023

1. Class information
  • Class Year and semester: 2021, FALL semester
  • Course No. : MEE3046
  • Course title: Rotordynamics for Turbomachinery
  • Credit-Lecture Hour-Practice Training: 3.00-3.00-0.00
  • Course outline: One Three-hour lecture/week
  • Organizing Department: Mechanical Design Engineering (Graduate School; Class scheduled in ERICA Campus)

2. Instructor information
  • Name: Dr. Keun Ryu
  • Department: Mechanical Design Engineering
  • Email: kryu@hanyang.ac.kr
  • Web: http://turbolab.hanyang.ac.kr/MEE3046.html

  • Office hours: By scheduled appointment (E-mail in advance required)
  • About office hours: This is to encourage individual interaction between the students and the instructor. Students should prepare by organizing questions in advance.

3. Course objective
  To provide the fundamental and practical theory and knowledge on rotordynamics and lubrication theory for fluid film bearings/seals/dampers.

4. Course Description:
The class will introduce fundamental principles and classical theory of modern turbomachinery rotordynamics and novel application.

The instructor will teach the following topics: Classical Machinery Vibration Theory and Application; Introduction to Rotordynamics; Rotordynamic Instability; Classic Lubrication Theroy; Bearings, Seals, and Their Rotordynamic Effects; and Computer Modeling Rotordynamics.

 Prerequisites: Vibrations, Fluid Dynamics, Dynamics

5. References: ALL Available in Hanyang University Library
  - Rotordynamics of Turbomachinery, J. Vance, Wiley, 1988, ISBN-10: 0471802581, ISBN-13: 978-0471802587

  - Turbomachinery Rotordynamics: Phenomena, Modeling, and Analysis, D. Childs, Wiley, 1993, ISBN-10: 047153840X, ISBN-13: 978-0471538400
  - Turbomachinery Rotordynamics with Case Studies, D. Childs, Minter Spring, 2013, ISBN-10: 0615852726, ISBN-13: 978-0615852720

  - Machinery Vibration and Rotordynamics, John M. Vance, Fouad Y. Zeidan, Brian Murphy, Wiley, 2010, ISBN-10: 0471462136, ISBN-13: 978-0471462132

  - Vibrations of Rotating Machinery , Volume 1. Basic Rotordynamics: Introduction to Practical Vibration Analysis, Matsushita, O., Tanaka, M., Kanki, H., Kobayashi, M., Keogh, P., 2017, Springer Japan, ISBN 978-4-431-55455-4

  - API RP 684, Paragraphs Rotodynamic Tutorial: Lateral Critical Speeds, Unbalance Response, Stability, Train Torsionals and Rotor Balancing, 2nd Edition, August 2005

6. Grading
Homework (50%), Mid-term Project Presentation (20%), Final Exam (20%), Attendance (5%), Class participation (5%)
Attendance to the lectures is a must for success.

7. Lecture material and topics

• Week 1

Introduction to Rotordynamics

https://www.sto.nato.int/publications/STO%20Educational%20Notes/RTO-EN-AVT-143/EN-AVT-143-09.pdf

https://rotorlab.tamu.edu/me626/Notes_pdf/Notes00%20Intro_Lub_RD%202018.pdf

** Basics of fluid film bearings and rolling element bearings: http://turbolab.hanyang.ac.kr/Engineering_Guide_for_Bearing_Selection.pdf

Further Reading Materials:

- Bearing Systems in Aircraft Gas Turbines: See Handbook of Lubrication and Tribology, Volume I Application and Maintenance, Second Edition, Edited by George E . Totten, CRC Press 2006, Print ISBN: 978-0-8493-2095-8

- Chapter 29. Water and Process Fluid Bearings & Chapter 30. Gas Bearings, CRC Handbook of Lubrication and Tribology, Volume III, Monitoring, Materials, Synthetic Lubricants, and Applications, Edited by E. Richard Booser, CRC Press 1993, Print ISBN: 978-0-8493-3903-5.

- Michael M. Khonsari, E. Richard Booser, Applied Tribology: Bearing Design and Lubrication, 2nd Edition, ISBN: 978-0-470-05711-7
- Hamrock, B. J. 1991, Fundamentals of Fluid Film Lubrication, NASA RP-1255

- Oil lubricated bearing system vs Oil-free bearing system vs Ball Bearing systems

- For rolling element bearings, visit the websites of major ball bearing companies: NMB, SKF, Barden, Schaeffler, FAG, NSK, NTN, and Timken.

• Week 2

Fundamentals of Machine Vibration and Classical Solutions

Thrust Bearings

- What determines static and dynamic thrust (axial) forces on thrust bearings?

- Design procedure for thrust bearings

Further reading material for your study

http://www.kingsbury.com/pdf/T.pdf

• Week 3
Analysis of the Jeffcott Rotor

Assignment:

• Week 4

• Week 5

• Week 7

Mid-term Exam

• Week 9

• Week 12

Final Exam

• Assignments

TBA

• Further reading materials
TBA