Course Viberatio.pdf
- 1. BSc Curricula | Department of Mechanical Engineering | May 2019 AASTU | School of Mechanical and Manufacturing Engineering 1 MEng3072: Mechanical Vibration Department of Mechanical Engineering/School of MME AASTU Course Number MEng3072 Course Title Mechanical Vibration Degree Program B.Sc. in Mechanical Engineering Module Advanced Engineering Mechanics Module Coordinator NN Lecturer NN ECTS Credits 5 Contact Hours (per Semester) Lecture Tutorial Laboratory/Practice Home Study 32 32 16 55 Course Objectives & Competences to be Acquired Course Objectives At the end of the course, students would be able to: Make vibration analysis, Know the different causes of vibration, Know the three types of vibrations (transversal, axial and torsional), Develop a model for vibration analysis, Make transient and steady state vibration analysis of single and multi degree of freedom systems, and Develop the necessary skills required to control vibrations. Course Description Introduction to mechanical vibration; Modeling of dynamic systems; Single-degree of freedom system; Multi-degree of freedom system; Whirling of shafts; Torsional vibrations; Causes of vibrations; Introduction to vibration control and measurements. Course outline 1. Introduction: Why we study vibration?; Kinematics of vibrations 2. Introduction to Modeling: Mechanical modeling; Mechanical elements; Continuous system elements
- 2. BSc Curricula | Department of Mechanical Engineering | May 2019 AASTU | School of Mechanical and Manufacturing Engineering 2 3. Single Degree of Freedom System: Undamped free vibration; Damped free vibration: Viscous damping; Columb damping; Hysterisis damping (optional) 4. Forced Vibration of Single Degree of Freedom System: Mechanical models and equations of motion; General solution of the equation of motion; Application of SDOF system 5. Two Degree of Freedom System: Free undamped vibration; Free vibration with damping; Forced vibration 6. Multi-Degree of Freedom System: Generalized coordinates; Derivation of the equations of motion; Free undamped vibration; Forced vibration; Approximate methods: Rayleigh method, Dunkerlys method, Holzers method, Matrix iteration method(Optional), Jacobis method (optional) 7. Whirling of Shafts 8. Torsional Vibration 9. Causes of Vibration and Control: Causes of vibration; Vibration control Laboratory Exercises Exercises using Torsional Vibration Apparatus, Free and Forced Vibration Apparatus, Whirling of Shafts apparatus Pre-requisites MEng3071 Semester Year III, Semester II Mode of delivery Semester based Status of Course core Teaching & Learning Methods Lectures supported by Lab, Assignments, and Tutorials, Project work. Evaluation systems Continuous assessment 50% Final examination 50% Course Policy Minimum of 80% attendance during lecture hours; and 100% attendance during project work sessions, except for some unprecedented mishaps. References Textbook: Palm II , Wiallim J., Mechanical Vibration, 2006. References: 1. Rao, S.S, Mechanical Vibrations, 4th ed., 2003.
- 3. BSc Curricula | Department of Mechanical Engineering | May 2019 AASTU | School of Mechanical and Manufacturing Engineering 3 2. Thomson, E.S., Theory of Vibrations with Applications, 5th ed., 1997. 3. Leul, F., Introduction to Mechanical Vibrations, Addis Ababa University Press, 1996 Course approval section Instructor Name Module coordinator Name __________________ ___________________ Signature: ____________ _____________ Date: ____________ _____________