Catalog Description:

• EOC 3114: Vibrations.
  Free and forced vibrations of single and multi-degree of freedom systems, harmonic, periodic, and shock excitation, impedance concepts, motion sensors, vibration criteria, and simple continuous systems, simple buoys and ocean applications. Design credit.

Pre-requisites:

• EOC3113, EOC3150, MAP 4306 (with a grade of "C" or better), and EOC3130.

Textbook:

• Mechanical Vibrations, , 3rd ed., S.S. Rao, Addison-Wesley

Coordinator:

• Yan Yong, Department of Ocean Engineering

Goals/Objectives:

• To provide students with sound knowledge of vibration analysis of discrete and continuous systems with emphasis on ocean applications

Course Topics:

1. Free vibration of single-degree-of-systems.
2. Harmonic excited vibration.
3. Vibration under general conditions.
4. Two-degree-of-freedom systems.
5. Multiple-degree-of-freedom systems.
6. Determination of natural frequencies and natural modes.
7. Continuous systems.
8. Vibration reduction and isolation.

Computer Projects:

• Development of algorithms for multi-criteria vibration designs.

Laboratory Projects:

1. Measurement of system parameters for the free vibration of a physical pendulum.
2. Measurement of the forced vibration of an unbalanced motor using accelerometers.

Grading Policy:

1. 10 quizzes -- 20%
2. 3 tests -- 30%
3. Final examination -- 30%
4. Laboratory experiments and reports -- 8%
5. Design -- 8%
6. Student portfolios -- 4%

Course Outcomes:

1. An ability to compute natural frequencies and natural modes of discrete and continuous oscillating systems.
2. An ability to examine free and forced vibrations of single- and multiple-degree-of-freedom engineering systems.
3. An ability to determine response of engineering structures to harmonic and non-periodic excitations.
4. An ability to design vibration systems in accordance with design criteria.
5. An ability to apply mathematics of complex numbers and linear algebra for the analysis of engineering problems.