MEC3453 - Dynamics 2 - 2018

The fundamental concepts of rigid body and particle dynamics taught in the second level dynamics unit will be further reinforced. This unit then focusses on mechanical vibrations theory. The methodology for analysing the response of a vibratory system to given external stimuli is covered. Both single and multi-degrees of freedom and discrete and continuous vibratory systems will be analysed. The methods for developing the equations of motion of a vibratory system using Newton's 2nd law and the Lagrange equation and the manipulation of these equations to analyse the free and forced vibration responses of these systems will be introduced. The analysis of forced vibrations will include periodic and non-periodic forcing functions.

At the successful completion of this unit you will be able to:

1. Compile the equations of motion to describe the dynamic response of mechanical systems using Newton's 2nd Law of motion and the Lagrange Equation.
2. Determine the kinematics and kinetic of particles and rigid bodies using vector algebra.
3. Analyse the dynamic response of a multiple degree of freedom vibrating mechanical systems using modal analysis techniques.
4. Describe the causes and effects of vibration on mechanical equipment based on the fundamentals of mechanical vibration covered in this unit.
5. Appraise the dynamic response of a mechanical system when subjected to arbitrary loading history using basis solutions from single frequency and transient excitation.

Continuous assessment: 40%

Final Examination (2 hours): 60%

Students are required to achieve at least 45% in the total continuous assessment component and at least 45% in the final examination component and an overall mark of 50% to achieve a pass grade in the unit. Students failing to achieve this requirement will be given a maximum of 45% in the unit.

3 hours lectures, 2 hours of practice sessions or laboratories and 7 hours of private study per week.

See also Unit timetable information

Mechanical Engineering