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The information below is relevant from 09/03/2020 to 11/07/2021
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ENEX13005 - Machine Design and Vibrations

General Information

Unit Synopsis

This unit will introduce you to the fundamental synthesis of mechanisms and machines. You will start by carrying out analysis of linkages in terms of their transmission angles, toggle positions and mobility for a certain mechanism. The kinematic analysis of any mechanism requires an acceleration analysis that depends on its position and velocity. You will be able to carry out this position, velocity, and acceleration analysis of these mechanisms (kinematic systems) using analytical equations and graphical methods. This unit will enable you to work on 3D CAD modelling and computer simulation of various mechanisms or machines. You will move on to kinetic analysis of systems thereby discussing static and dynamic balancing of rotating masses. After learning concepts of dynamics, you will study vibrations (free and forced) of single and multi-degree of freedom systems and will be able to carry out analysis of such systems using force and energy methods. Students enrolled online are required to attend a compulsory Residential School and have access to a computer and make frequent use of the internet.

Details

Level Undergraduate
Unit Level 3
Credit Points 6
Student Contribution Band SCA Band 2
Fraction of Full-Time Student Load 0.125
Pre-requisites or Co-requisites

MATH11219 Applied Calculus AND [ENEM12007 Statics & Dynamics OR ENEM12010 Engineering Dynamics].

Important note: Students enrolled in a subsequent unit who failed their pre-requisite unit, should drop the subsequent unit before the census date or within 10 working days of Fail grade notification. Students who do not drop the unit in this timeframe cannot later drop the unit without academic and financial liability. See details in the Assessment Policy and Procedure (Higher Education Coursework).

Class Timetable View Unit Timetable
Residential School Compulsory Residential School
View Unit Residential School

Unit Availabilities from Term 1 - 2020

Term 1 - 2020 Profile
Mackay
Mixed Mode
Term 1 - 2021 Profile
Mackay
Mixed Mode
Term 1 - 2022 Profile
Mackay
Mixed Mode

Attendance Requirements

All on-campus students are expected to attend scheduled classes – in some units, these classes are identified as a mandatory (pass/fail) component and attendance is compulsory. International students, on a student visa, must maintain a full time study load and meet both attendance and academic progress requirements in each study period (satisfactory attendance for International students is defined as maintaining at least an 80% attendance record).

Assessment Overview

Recommended Student Time Commitment

Each 6-credit Undergraduate unit at CQUniversity requires an overall time commitment of an average of 12.5 hours of study per week, making a total of 150 hours for the unit.

Assessment Tasks

Assessment Task Weighting
1. Online Quiz(zes) 20%
2. Written Assessment 15%
3. Written Assessment 20%
4. Practical Assessment 15%
5. Portfolio 30%

This is a graded unit: your overall grade will be calculated from the marks or grades for each assessment task, based on the relative weightings shown in the table above. You must obtain an overall mark for the unit of at least 50%, or an overall grade of ‘pass’ in order to pass the unit. If any ‘pass/fail’ tasks are shown in the table above they must also be completed successfully (‘pass’ grade). You must also meet any minimum mark requirements specified for a particular assessment task, as detailed in the ‘assessment task’ section (note that in some instances, the minimum mark for a task may be greater than 50%).

Consult the University’s Grades and Results Policy for more details of interim results and final grades

Past Exams

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Previous Feedback

Term 1 - 2020 : The overall satisfaction for students in the last offering of this course was 4.8 (on a 5 point Likert scale), based on a 55.56% response rate.

Feedback, Recommendations and Responses

Every unit is reviewed for enhancement each year. At the most recent review, the following staff and student feedback items were identified and recommendations were made.

Source: Unit evaluation
Feedback
Students enjoyed the synthesis and analysis of mechanical machines, and vibration/suspension.
Recommendation
The lectures will strive to improve the quality of the learning resources.
Action Taken
The lecture slides and tutorial materials have been reviewed and improved to ensure their quality.
Source: Unit evaluation
Feedback
Students suggested having a tutorial class in the same week of the corresponding lecture.
Recommendation
The lecture and tutorial will cover the same content in the same week. The Unit Coordinator will ensure the lecture will be held prior to the tutorial.
Action Taken
The first tutorial class was held in Week 2 to cover the lecture content in Week 1. This ensured enough time for students to review lecture contents prior to the corresponding tutorial.
Source: Unit evaluation
Feedback
Students pointed out that most of the assessments are placed at the end of the unit.
Recommendation
A new peer-assessment for an interim report of the final project will replace the group assessment to ensure students will start their final project earlier and will check their progress by comparing with their peers.
Action Taken
With a new assessment (interim report), students were required to start their final project earlier, so that the study load at the end of the term was alleviated. Further, this assessment item provided students with a chance to benchmark their peers' ideas and progress.
Source: Student Unit and Teaching Evaluation
Feedback
Students appreciated live lectures/tutorials in which student's queries were answered instantly.
Recommendation
Teaching staff will keep making an effort to deliver all lectures/tutorial live.
Action Taken
Nil.
Source: Student Unit and Teaching Evaluation & Email
Feedback
The interim report assessment was thanked by students for providing a forum to exchange ideas, feedback and progress. Students mentioned that it helped them consolidate their understanding of the topics.
Recommendation
The marking rubric and feedback form for the interim report assessment will be reviewed and further improved to assist students in exchanging ideas and knowledge towards completing their final project.
Action Taken
Nil.
Source: Student Unit and Teaching Evaluation & Email
Feedback
Students pointed out that tutorial materials for Autodesk Inventor were based on the previous version so that unnecessary confusion was made.
Recommendation
Autodesk Inventor tutorials will be reviewed and amended as per the latest version of Autodesk Inventor.
Action Taken
Nil.
Unit learning Outcomes

On successful completion of this unit, you will be able to:

  1. Apply key concepts of kinetics and kinematics to analyse machine design and synthesis
  2. Use analytical and graphical techniques to carry out position, velocity, and acceleration analysis
  3. Apply concepts of dynamics in balancing of rotating components
  4. Analyse vibrations in single and multiple degree of freedom systems
  5. Communicate professionally using relevant technical terminology, symbols, and diagrams and effectively document calculations and solutions
  6. Work autonomously and as a team member to analyse problems and present solutions.

Learning outcomes will be linked to Engineers Australia stage 1 competency standards for Professional Engineers.

Alignment of Assessment Tasks to Learning Outcomes
Assessment Tasks Learning Outcomes
1 2 3 4 5 6
1 - Online Quiz(zes)
2 - Written Assessment
3 - Written Assessment
4 - Practical Assessment
5 - Portfolio
Alignment of Graduate Attributes to Learning Outcomes
Introductory Level
Intermediate Level
Graduate Level
Graduate Attributes Learning Outcomes
1 2 3 4 5 6
1 - Communication
2 - Problem Solving
3 - Critical Thinking
6 - Information Technology Competence
Alignment of Assessment Tasks to Graduate Attributes
Introductory Level
Intermediate Level
Graduate Level
Assessment Tasks Graduate Attributes
1 2 3 4 5 6 7 8 9
1 - Online Quiz(zes)
2 - Written Assessment
3 - Written Assessment
4 - Practical Assessment
5 - Portfolio