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. In this unit, you must complete compulsory practical activities. Refer to the Engineering Undergraduate Course Moodle site for proposed dates.

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).

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Residential School Compulsory Residential School
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Unit Availabilities from Term 3 - 2022

Term 1 - 2023 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 - 2022 : The overall satisfaction for students in the last offering of this course was .00% (`Agree` and `Strongly Agree` responses), based on a 20.00% 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: Student unit evaluation
Feedback
The open-ended final project was appreciated by students where they had flexibility in design and analysis and achieved high creativity.
Recommendation
While the assessment items will be subjected to major revisions, these revisions will be made to further nourish creativity and enjoyment by sharing the final results between students.
Action Taken
The key project-based assessment items have been completely revised while their delivery style has not been changed, including the peer-assessment activity that enables the exchange of ideas.
Source: Student unit evaluation
Feedback
Students suggested providing more in-depth guidelines for each of the tasks in the final project.
Recommendation
The tutorial class will spare its partial time to discuss and review the tasks in the final project towards the deadline for students to gain a better understanding of the requirements. Timely feedback on the formative assessment items will enable students to clarify assessment tasks.
Action Taken
Newly developed assessment items provided clear statements for tasks. Each of the tasks was discussed in detail.
Source: Email
Feedback
Students appreciated the design of laboratory activities that link theory to practice.
Recommendation
The laboratory documents will be reviewed to improve task descriptions and procedures and the unit coordinator make further improvements to better link theory with practice.
Action Taken
The laboratory activities have been reviewed and further improved.
Source: In person conversation
Feedback
Students complimented the usefulness and relevance of the lab activities to the theories learned.
Recommendation
While lab activities are to further improve, its project-based assessment items should be revised to have more direct connections to the laboratory components.
Action Taken
Nil.
Source: Self-examination
Feedback
Students seemed to struggle with understanding the given tasks for the open-ended assignment.
Recommendation
Students should be provided with detailed descriptions and requirements for the tasks of the interim report. Students should be provided with the unit coordinator's feedback for their interim report in addition to those from their peers.
Action Taken
Nil.
Source: Self-examination
Feedback
MATLAB and its toolboxes were introduced and used for the first time. The difficulty level of the related tasks and coverage seemed to be excessive.
Recommendation
The tasks in the assessment items involving MATLAB and its toolboxes should be reviewed and adjusted. Students should be provided with more constructive tutorials to scaffold their understanding of MATLAB and its toolboxes in the context of machine design and vibrations.
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.

The Learning Outcomes for this unit are linked with the Engineers Australia Stage 1 Competency Standards for Professional Engineers in the areas of 1. Knowledge and Skill Base, 2. Engineering Application Ability and 3. Professional and Personal Attributes at the following levels:

Intermediate
1.2 Conceptual understanding of the mathematics, numerical analysis, statistics, and computer and information sciences which underpin the engineering discipline. (LO: 1I 2I 3I 4I)
1.3 In-depth understanding of specialist bodies of knowledge within the engineering discipline. (LO: 1I 2I 3I 4I)
Advanced
1.1 Comprehensive, theory-based understanding of the underpinning natural and physical sciences and the engineering fundamentals applicable to the engineering discipline. (LO: 1A 2A 3A 4I)
1.4 Discernment of knowledge development and research directions within the engineering discipline. (LO: 1A 4A)
1.5 Knowledge of engineering design practice and contextual factors impacting the engineering discipline. (LO: 1A 4A)
1.6 Understanding of the scope, principles, norms, accountabilities and bounds of sustainable engineering practice in the specific discipline. (LO: 5A 6A)
2.1 Application of established engineering methods to complex engineering problem-solving. (LO: 1A 2A 3A 4A 6A)
2.2 Fluent application of engineering techniques, tools and resources. (LO: 4A)
2.3 Application of systematic engineering synthesis and design processes. (LO: 6A)
2.4 Application of systematic approaches to the conduct and management of engineering projects. (LO: 5A 6A)
3.2 Effective oral and written communication in professional and lay domains. (LO: 5A 6A)
3.4 Professional use and management of information. (LO: 5A 6A)
3.5 Orderly management of self, and professional conduct. (LO: 6A)
3.6 Effective team membership and team leadership. (LO: 6A)

Note: LO refers to the Learning Outcome number(s) which link to the competency and the levels: N – Introductory, I – Intermediate and A - Advanced.
Refer to the Engineering Undergraduate Course Moodle site for further information on the Engineers Australia's Stage 1 Competency Standard for Professional Engineers and course level mapping information https://moodle.cqu.edu.au/course/view.php?id=1511

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 10