Subject Datasheet

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Budapest University of Technology and Economics
Faculty of Transportation Engineering and Vehicle Engineering
1. Subject name Structural vibrations
2. Subject name in Hungarian Szerkezetek lengései
3. Code BMEKOJSM665 4. Evaluation type exam grade 5. Credits 4
6. Weekly contact hours 2 (10) Lecture 0 (0) Practice 2 (11) Lab
7. Curriculum
Vehicle Engineering MSc (J)
8. Role
Specialization (sp) at Vehicle Engineering MSc (J)
9. Working hours for fulfilling the requirements of the subject 120
Contact hours 56 Preparation for seminars 18 Homework 20
Reading written materials 12 Midterm preparation 4 Exam preparation 10
10. Department Department of Railway Vehicles and Vehicle System Analysis
11. Responsible lecturer Dr. Béda Péter
12. Lecturers Dr. Béda Péter, Dr. Pápai Ferenc
13. Prerequisites strong: KOJSM663 - Mechanics of superstructure materials
14. Description of lectures
Application of the Lagrange equation of second kind for holonomic and scleronomic conservative sytems.Study and conditions of existence of stable equilibrium. Small vibrations, approximative determination of natural frequencies. Oscillation of bars, axles, strings and membranes. Basics of modal analysis. Criterion of motion stability. Study methods for nonlinear problems. Bifurcation, post-critical states, soft and hard loss of stability
15. Description of practices
16. Description of labortory practices
Individual and guided practice lessons
17. Learning outcomes
A. Knowledge
  • the student knows the Lagrange equations of the second kind describing holonomic and scleronomic sytems
  • knows the existence criteria of the stable equilibrium
  • knows the equations describing longitudinal, torsional and bending vibrations of rods
  • knows the vibration theory of shafts, cords and membranes
  • knows the basics of modal analysis
  • knows the motion stability criterium for both linear and nonlinear cases
  • knows the notions of bifurcation and postcritic state, as well as the theory of stability loss
B. Skills
  • the student is able to check the stability of a structure
  • is able to analyze the possible vibrations
  • is able to build linear and non-linear models
  • is able to study models and to discuss results
C. Attitudes
  • the student makes an effort to gather all the available informations in a given domain
  • cooperates with his fellow students and the teacher
  • is open minded towards new and innovative ideas and researches
  • uses informatical and computational devices for his work
D. Autonomy and Responsibility
  • the student is conscient about his responsibility towards the society and his company
  • asks for the colleagues' expertise and judgement when working
  • considers challenges with responsibility
18. Requirements, way to determine a grade (obtain a signature)
For signature: 2 semestrial homeworks, 2 midter tests with 50% result. Final mark equals to the result of the exam.
19. Opportunity for repeat/retake and delayed completion
Second test possibility for those not present on the test, possibility of delayed deadline for homework
20. Learning materials
Lecture notes
Effective date 10 October 2019 This Subject Datasheet is valid for Inactive courses