CQUniversity Unit Profile
ENEX13005 Machine Design and Vibrations
Machine Design and Vibrations
All details in this unit profile for ENEX13005 have been officially approved by CQUniversity and represent a learning partnership between the University and you (our student).
The information will not be changed unless absolutely necessary and any change will be clearly indicated by an approved correction included in the profile.
General Information

Overview

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 in distance mode are required to attend a compulsory Residential school and have access to a computer and make frequent use of the internet.

Details

Career Level: Undergraduate
Unit Level: Level 3
Credit Points: 6
Student Contribution Band: 8
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).

Offerings For Term 1 - 2019

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).

Residential Schools

This unit has a Compulsory Residential School for distance mode students and the details are:
Click here to see your Residential School Timetable.

Class and 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.

Class Timetable

Bundaberg, Cairns, Emerald, Gladstone, Mackay, Rockhampton, Townsville
Adelaide, Brisbane, Melbourne, Perth, Sydney

Assessment Overview

1. Written Assessment
Weighting: 20%
2. Written Assessment
Weighting: 20%
3. Practical Assessment
Weighting: 20%
4. Portfolio
Weighting: 40%

Assessment Grading

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.

Previous Student Feedback

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.

Feedback from Unit Evaluation

Feedback

The students liked the way its Moodle site was designed, which helped them sort back through the resources for particular information.

Recommendation

The Unit Coordinator will strive to improve further.

Feedback from Unit Evaluation

Feedback

The students pointed out the final project could improve with clear explanations and requirements.

Recommendation

It was firstly designed to give an open-ended task. However, the Unit Coordinator will add more specific requirements and assessment criteria for each design task.

Feedback from Unit Evaluation

Feedback

The students suggested the vibration part and its labs could improve.

Recommendation

The Unit Coordinator and lecturer will ensure the relevance of the content to the learning outcomes and ensure the lab equipment is error free.

Feedback from Unit Evaluation & Self-observation

Feedback

The students felt over-stressed towards the end of the term due to the assessment items being positioned in the later weeks.

Recommendation

From the next offering, the vibration part will be delivered first, and then followed by the rest. This will ensure a fair distribution of study loads throughout the term.

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 Learning Outcomes, Assessment and Graduate Attributes
N/A Level
Introductory Level
Intermediate Level
Graduate Level
Professional Level
Advanced Level

Alignment of Assessment Tasks to Learning Outcomes

Assessment Tasks Learning Outcomes
1 2 3 4 5 6
1 - Written Assessment - 20%
2 - Written Assessment - 20%
3 - Practical Assessment - 20%
4 - Portfolio - 40%

Alignment of Graduate Attributes to Learning Outcomes

Graduate Attributes Learning Outcomes
1 2 3 4 5 6
1 - Communication
2 - Problem Solving
3 - Critical Thinking
4 - Information Literacy
5 - Team Work
6 - Information Technology Competence
7 - Cross Cultural Competence
8 - Ethical practice
9 - Social Innovation
10 - Aboriginal and Torres Strait Islander Cultures

Alignment of Assessment Tasks to Graduate Attributes

Assessment Tasks Graduate Attributes
1 2 3 4 5 6 7 8 9 10
1 - Written Assessment - 20%
2 - Written Assessment - 20%
3 - Practical Assessment - 20%
4 - Portfolio - 40%
Textbooks and Resources

Textbooks

Prescribed

Design of Machinery

Edition: 5th (2011)
Authors: Robert L. Norton
McGraw-Hill Education
ISBN: 9780077421717
Binding: Hardcover

Additional Textbook Information

Copies can be purchased from the CQUni Bookshop here: http://bookshop.cqu.edu.au (search on the Unit code)

IT Resources

You will need access to the following IT resources:
  • CQUniversity Student Email
  • Internet
  • Unit Website (Moodle)
Referencing Style

All submissions for this unit must use the referencing style: Harvard (author-date)

For further information, see the Assessment Tasks.

Teaching Contacts
Jay Sul Unit Coordinator
j.sul@cqu.edu.au
Schedule
Week 1 Begin Date: 11 Mar 2019

Module/Topic

Introduction and Kinematics fundamentals

  • Introduction to the unit and information session
  • Introduction to the machine design and vibration
  • Applications of kinematics
  • DoF in 2D and types of motion
  • Joints, links and kinematic diagrams

Chapter

Design of Machinery (R. L. Norton)

  • Chapters 1 and 2

Events and Submissions/Topic

Week 2 Begin Date: 18 Mar 2019

Module/Topic

Graphical linkage synthesis

  • Linkage synthesis - Graphical, manual and dimensional techniques with examples
  • Two-position synthesis
  • Three-position synthesis

Chapter

Design of Machinery (R. L. Norton)

  • Chapter 3

Events and Submissions/Topic

Week 3 Begin Date: 25 Mar 2019

Module/Topic

Position analysis of linkages

  • Types of motion
  • Position analysis - Graphical, algebraic and vector loop methods for four-bar linkages and four-bar-crank slider

Chapter

Design of Machinery (R. L. Norton)

  • Chapter 4

Events and Submissions/Topic

Computer lab session

Week 4 Begin Date: 01 Apr 2019

Module/Topic

Analytical linkage synthesis

  • 2 and 3 position motion generation by analytical and graphical synthesis
  • 4 and 5 position motion generation using analytical synthesis

Chapter

Design of Machinery (R. L. Norton)

  • Chapter 5

Events and Submissions/Topic

Week 5 Begin Date: 08 Apr 2019

Module/Topic

Velocity analysis of linkages

  • Recap of Engineering Dynamics
  • Graphical (vector) and instant centre methods (Kennedy's theorem)
  • Mechanical advantages

Chapter

Design of Machinery (R. L. Norton)

  • Chapter 6

Events and Submissions/Topic

Vacation Week Begin Date: 15 Apr 2019

Module/Topic

Chapter

Events and Submissions/Topic

Week 6 Begin Date: 22 Apr 2019

Module/Topic

Acceleration analysis of linkages

  • Graphical (vector) and analytical methods
  • Coriolis acceleration

Chapter

Design of Machinery (R. L. Norton)

  • Chapter 7

Events and Submissions/Topic

Computer lab session


Week 7 Begin Date: 29 Apr 2019

Module/Topic

Dynamics fundamentals

  • Mass moment of inertia, centre of gravity and parallel axis theorem
  • Lumped models
  • Virtual work
  • Forces

Chapter

Design of Machinery (R. L. Norton)

  • Chapter 10

Events and Submissions/Topic

Assignment#1 - Analysis of kinematic linkages Due: Week 7 Friday (3 May 2019) 5:00 pm AEST
Week 8 Begin Date: 06 May 2019

Module/Topic

Static and Dynamic balancing

  • Static and dynamic balancing on rotating masses
  • Effect of balancing on shaking and input torque

Chapter

Design of Machinery (R. L. Norton)

  • Chapter 12

Events and Submissions/Topic


Week 9 Begin Date: 13 May 2019

Module/Topic

Basic concepts of vibration

  • Importance and types of vibration
  • Natural frequency
  • Critical damping and damping ratio
  • Introduction to mathematical modeling and Laplace transform

Chapter

Theory of Vibrations with Applications (Thomson & Dahleh)

  • Chapters 1 and 2

Events and Submissions/Topic

Computer lab session

Week 10 Begin Date: 20 May 2019

Module/Topic

Free and forced vibration

  • Forced harmonic vibration and resonance
  • Logarithmic decrement
  • Support motion
  • Rotating unbalance

Chapter

Theory of Vibrations with Applications (Thomson & Dahleh)

  • Chapters 2 and 3

Events and Submissions/Topic

Residential School 21 May (Mandatory for mixed mode students)


Week 11 Begin Date: 27 May 2019

Module/Topic

Transient vibration

  • Stability of a system
  • Poles and Zeros
  • Root Locus
  • Bode plot

Chapter

Theory of Vibrations with Applications (Thomson & Dahleh)

  • Chapter 4

Events and Submissions/Topic


Week 12 Begin Date: 03 Jun 2019

Module/Topic

Two degree-of-freedom system

  • 2 DoF undamped free vibration
  • 2 DoF damped free vibration
  • 2 DoF forced vibration
  • 2 DoF translational and rotational

Chapter

Theory of Vibrations with Applications (Thomson & Dahleh)

  • Chapter 5

Events and Submissions/Topic

Computer lab session


Assignment#2 - Design of a suspension system Due: Week 12 Friday (7 June 2019) 5:00 pm AEST
Review/Exam Week Begin Date: 10 Jun 2019

Module/Topic

Chapter

Events and Submissions/Topic

Laboratory report Due: Review/Exam Week Friday (14 June 2019) 5:00 pm AEST
Exam Week Begin Date: 17 Jun 2019

Module/Topic

Chapter

Events and Submissions/Topic

Portfolio Due: Exam Week Friday (21 June 2019) 5:00 pm AEST
Assessment Tasks

1 Written Assessment

Assessment Title
Assignment#1 - Analysis of kinematic linkages

Task Description

This assignment assesses the content from Week 1 to Week 6. You must provide detailed solutions to the problems given in the assignment in order to demonstrate your knowledge and understanding of the concepts and processes incorporating relevant sketches, clear step-by-step solution and conclusion/judgements on the answer.


Assessment Due Date

Week 7 Friday (3 May 2019) 5:00 pm AEST


Return Date to Students

Students will get their results immediately after the due time, except for their sketch


Weighting
20%

Minimum mark or grade
50%

Assessment Criteria

  • Correctly identify the problem to be solved (key terms, units, elements or parts of a problem)
  • Choose the most appropriate approach to solving the problem
  • Clearly present the solutions with sketches (if necessary) for the problems
  • Attempt logical alternative approaches to solving the problem


Referencing Style

Submission
Online

Submission Instructions
Use the submission link to be provided in Moodle

Learning Outcomes Assessed
  • Apply key concepts of kinetics and kinematics to analyse machine design and synthesis
  • Use analytical and graphical techniques to carry out position, velocity, and acceleration analysis


Graduate Attributes
  • Communication
  • Problem Solving
  • Critical Thinking
  • Information Technology Competence
  • Ethical practice

2 Written Assessment

Assessment Title
Assignment#2 - Design of a suspension system

Task Description

- Task 1: Design a shock absorber system - Find the necessary stiffness and damping constant of the shock absorber system to meet the design requirements
- Task 2: Demonstrate the performance of your design
- Deliverables
  • Mathematical model and free-body diagram of the Patroller
  • Demonstrate your analytical approach to each task
  • Verify your analytical approach to each task using Matlab Simulink
  • Discussion and conclusions of your own view on the performance of the system and suggestions for the client


Assessment Due Date

Week 12 Friday (7 June 2019) 5:00 pm AEST


Return Date to Students

Two weeks after submission


Weighting
20%

Minimum mark or grade
50%

Assessment Criteria

- Presentation (25%)
- Introduction and background (15%)
- Methods and results (25%)
- Discussion (20%)
- Conclusions (15%)


Referencing Style

Submission
Online

Submission Instructions
Use the submission link to be provided in Moodle

Learning Outcomes Assessed
  • Apply concepts of dynamics in balancing of rotating components
  • Analyse vibrations in single and multiple degree of freedom systems


Graduate Attributes
  • Communication
  • Problem Solving
  • Critical Thinking
  • Information Technology Competence
  • Ethical practice

3 Practical Assessment

Assessment Title
Laboratory report

Task Description

You will conduct two laboratory sessions in a group and produce a group lab report and individual lab worksheet.

- Mass balance

- Free and forced vibrations


Assessment Due Date

Review/Exam Week Friday (14 June 2019) 5:00 pm AEST

One group lab report and one individual lab worksheet to be submitted


Return Date to Students

Two weeks after submission


Weighting
20%

Minimum mark or grade
50%

Assessment Criteria

- Presentation (15%)

- Introduction and background (10%)

- Methods and results (15%)

- Discussion (20%)

- Conclusions and reflection (10%)

- Peer-assessment (30%)


Referencing Style

Submission
Online Group

Submission Instructions
Submission to be made through Moodle

Learning Outcomes Assessed
  • Communicate professionally using relevant technical terminology, symbols, and diagrams and effectively document calculations and solutions
  • Work autonomously and as a team member to analyse problems and present solutions.


Graduate Attributes
  • Communication
  • Problem Solving
  • Critical Thinking
  • Team Work
  • Information Technology Competence
  • Cross Cultural Competence
  • Ethical practice

4 Portfolio

Assessment Title
Portfolio

Task Description

You will be given a series of tasks to

  • conduct a static force analysis on a damped multiple-linkage mechanism,
  • conduct a dynamic force analysis on the system,
  • suggest an improved mechanism,
  • and replicate both the systems in Autodesk Inventor to verify your analysis and design.


Assessment Due Date

Exam Week Friday (21 June 2019) 5:00 pm AEST


Return Date to Students

Will be returned to students after confirmation of grades


Weighting
40%

Minimum mark or grade
50%

Assessment Criteria

- Presentation (25%)

  • The report is in a professional and consistent format.
  • The report meets the proposed specification (file format, length, etc.).
  • Good quality of English expression is demonstrated and its language is clear and concise.
  • The report is sectioned properly and discussed in the text.
  • All figures and tables are labelled properly and discussed in the text.
  • Figures and tables are relevant and informative.
  • Correct citation and reference style is used in accordance with the suggested referencing system.
  • Good use of visual aids is demonstrated.

- Introduction and background (15%)

  • A clear statement about why the report was commissioned in the first place.
  • Comprehensive, detailed and focused context about the chosen application is given.
  • Succinctly lead the reader to the purpose of the work being documented.
  • The objectives of the work are expressed well.
  • Previous reports and research, if the present report builds on, are included.

- Methods and results (25%)

  • Detailed information on the approach/theory used in the study.
  • Sufficient references are provided to support the methodology used in the report.
  • Results are presented in a logical way.
  • Clear but concise evidence in the form of statistics, graphs and tables.
  • Justification for conclusions and recommendations.

- Discussions (20%)

  • Analysis using your own words on the method and results.
  • Good interpretation and explanations of the results.
  • Relation of the results with the literature.
  • Examine whether and how the questions raised in the introduction have been answered.

-  Conclusions (15%)

  • Clear agreement with all the objectives that were set out in the introduction is made.
  • The significant findings and elements from the report are highlighted.
  • The main points of the report are drawn.
  • A clear statement about how the topic relates to its context (an evaluation of the importance of the topic, implications and/or recommendations for future studies)


Referencing Style

Submission
Online

Submission Instructions
Submission to be made through Moodle

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


Graduate Attributes
  • Communication
  • Problem Solving
  • Critical Thinking
  • Information Technology Competence
  • Ethical practice

Academic Integrity Statement

As a CQUniversity student you are expected to act honestly in all aspects of your academic work.

Any assessable work undertaken or submitted for review or assessment must be your own work. Assessable work is any type of work you do to meet the assessment requirements in the unit, including draft work submitted for review and feedback and final work to be assessed.

When you use the ideas, words or data of others in your assessment, you must thoroughly and clearly acknowledge the source of this information by using the correct referencing style for your unit. Using others’ work without proper acknowledgement may be considered a form of intellectual dishonesty.

Participating honestly, respectfully, responsibly, and fairly in your university study ensures the CQUniversity qualification you earn will be valued as a true indication of your individual academic achievement and will continue to receive the respect and recognition it deserves.

As a student, you are responsible for reading and following CQUniversity’s policies, including the Student Academic Integrity Policy and Procedure. This policy sets out CQUniversity’s expectations of you to act with integrity, examples of academic integrity breaches to avoid, the processes used to address alleged breaches of academic integrity, and potential penalties.

What is a breach of academic integrity?

A breach of academic integrity includes but is not limited to plagiarism, self-plagiarism, collusion, cheating, contract cheating, and academic misconduct. The Student Academic Integrity Policy and Procedure defines what these terms mean and gives examples.

Why is academic integrity important?

A breach of academic integrity may result in one or more penalties, including suspension or even expulsion from the University. It can also have negative implications for student visas and future enrolment at CQUniversity or elsewhere. Students who engage in contract cheating also risk being blackmailed by contract cheating services.

Where can I get assistance?

For academic advice and guidance, the Academic Learning Centre (ALC) can support you in becoming confident in completing assessments with integrity and of high standard.

What can you do to act with integrity?