StudiesCourses
Aeroacoustics and Aeroelasticity of Turbomachinery

Aeroacoustics and Aeroelasticity of Turbomachinery

This lecture priliminary deals with transient processes with a special focus on aeroelastics and aeroacoustics of turbomachinery and gas turbines. For the design and safe operation of aircraft engines several effects like flutter, forced response and the sound generation and propagation are relevant. Within the scope of this lecture these topics were discussed extensively. Firstly, the main physically phenomena and theoretical basics of the together interacting topics structure, airflow, sound waves and Vibro-Acoustics are discussed. Secondly, the theoretical explained physics are shown by selected experimental examples. The lecture is intended for students, who have interest in work with promising multidisciplinary challenges.

Recommended for 7th semester

CONTENT

  • Sound generation and transportation
  • Aerothermoacoustics
  • Basics of aeroelastics
  • Aeroelastic effects (flutter, forced vibrations, acoustic reonance)
  • Stability and design criteria
  • Damping characteristics (aerodynamics and structure)
  • Mistuning (structure and aerodynamics)
  • Experimental tests (methodology and equipment)
  • Discussion of the effects using the example of a turbo machine

RECOMMENDED PREVIOUS KNOWLEDG

  • Fluid Mechanics I and II
  • Technical Mechanics
  • Machine Dynamics

RECOMMENDED LITERATURE

  • Ehrenfried, K.: „Strömungsakustik“, Skript zur Vorlesung, 2004.
  • Rienstra, S.W.; Hirschberg, A.: An Introduction to Acoustics, Eindhofen University of Technology, 2004.
  • Dowell, E. H.; Clark, R.: „A Modern Course in Aeroelasticity“, Kluwer Academic Pub., 2004.
  • Fung, Y. C.: „An Introduction to the Theory of Aeroelasticity“, Dover Pubn. Inc, 2008
  • Försching, H.W.: „Grundlagen der Aeroelastik“, Springer Berlin Heidelberg, 1974

TYPE OF EXAMINATION

  • written exam

COURSE ENROLLMENT AND MATERIALS

Further information about this module can be found via the Online Course Catalogue and Stud.IP. In addition, you must also register your attendance at this course via Stud.IP.


LECTURER

Prof. Dr.-Ing. Jörg Seume
Executive Director
Address
An der Universität 1
30823 Garbsen, Raum 315
Building
Room
315
Prof. Dr.-Ing. Jörg Seume
Executive Director
Address
An der Universität 1
30823 Garbsen, Raum 315
Building
Room
315
Dr.-Ing. Lars Panning-von Scheidt genannt Weschpfennig
Group Leader
Address
An der Universität 1
30823 Garbsen
Building
Room
201
Address
An der Universität 1
30823 Garbsen
Building
Room
201

TUTOR

Stefanie Lohse, M.Sc.
Research Staff
Address
An der Universität 1
30823 Garbsen
Building
Room
211
Stefanie Lohse, M.Sc.
Research Staff
Address
An der Universität 1
30823 Garbsen
Building
Room
211
Mona Amer, M.Sc.
Group Leader
Aeroacoustics / Aeroelasticity and Wind Energy
Address
An der Universität 1
30823 Garbsen
Building
Room
202
Mona Amer, M.Sc.
Group Leader
Aeroacoustics / Aeroelasticity and Wind Energy
Address
An der Universität 1
30823 Garbsen
Building
Room
202