Vibrations of Mechanical Systems

COURSE CONTENT

  • Introduction – Term definitions
  • Systems of one degree of freedom
  • Vibration measuring instruments
  • Formulation of motion equations of multi degree of freedom systems
  • The problem of eigenvalues and eigenfrequencies
  • Computational methods
  • Modal Analysis
  • Vibrations of continuous media
  • Vibration problems
    • Introduction
    • Rotational unbalance
    • Shaft whirling
    • Fatigue
    • Influence of vibrations on human beings
  • Vibration isolation
  • Dynamic absorbers
  • Case studies – Problems

LEARNING OUTCOMES

The course is an optional specialization course and is offered by the CAD/CAM sector in the 8th semester of studies. The course aims to provide students with specialized knowledge about the vibrations of mechanical systems.

More specifically, it aims at the:

  • recognition of the spectrum and the necessity of solving vibration problems in the mechanical systems
  • understanding the process of systematically developing vibration models;
  • acquire familiarity with the available methods and techniques for solving complex real-world vibration problems

Upon successful completion of the course the student will be able to:

  • know how vibration measurement instruments work
  • form and solve the differential equations of multi-degree-of-freedom vibrating systems
  • solve the problem of eigenvalues ​​and eigenmodes and perform modal analysis
  • apply iterative methods to determine eigenvalues ​​and eigenmodes
  • solve problems of vibrating continuous media
  • solve problems of unbalance, whirling shafts and effects of vibrations to humans
  • design isolation devices and installations and use dynamic dampers
Διδάσκοντες:
, Teaching Research Staff, P.D. 407/80, Postdoc