MEC3453 · Mechanical dynamics 2

Overview

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.

Areas of study: E3001 Bachelor of Engineering (Honours) - Specialisation: Mechanical engineering

Offerings

Assessment

The Handbook lists an examination for this unit.

Continuous assessment: 40% Final assessment: 60% This unit contains hurdle requirements that you must achieve to be able to pass the unit. You are required to achieve at least 45% in the total continuous assessment component and at least 45% in the final assessment component. The consequence of not achieving a hurdle requirement is a fail grade (NH) and a maximum mark of 45 for the unit.

Assessment details may change. Please refer to the assessment information in Moodle closer to the start of the teaching period.

Requisites

Learning outcomes

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.

Workload

The minimum total expected workload to achieve the learning outcomes for this unit is 144 hours per semester typically comprising a mixture of 3-6 hours of scheduled learning activities and 6-9 hours of independent study per week. Scheduled activities may include a combination of teacher-directed learning, peer-directed learning and online engagement. Independent study may include associated readings, assessment and preparation for scheduled activities.

Student experience, not official rules. Nothing here changes what the Handbook says.