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MEC2301 Design of Machine Elements

Semester 2, 2022 Toowoomba On-campus
Units : 1
Faculty or Section : Faculty of Health, Engineering and Sciences
School or Department : School of Engineering
Grading basis : Graded
Course fee schedule : /current-students/administration/fees/fee-schedules

Staffing

Examiner:

Requisites

Pre-requisite: (MEC2402 and ENG1100) or Students must be enrolled in one of the following Programs: MEPR or GCEN or GEPR

Overview

Design is one of the most important engineering functions for it is through design that new products and processes are born and that old ones are improved. Design requires a breadth of knowledge extending over many areas, and a sound analytical ability. It requires an ability to recognise the phenomena involved and to synthesise an integrated solution. Design requires sound engineering judgement as well as a good grasp of the underlying basic science and mathematics.

This course aims to integrate the knowledge that the student has gained earlier in their program and to focus the student's analytical skills towards synthesis of solutions by working through the design of several simple, commonly used devices.

Course learning outcomes

The course objectives define the student learning outcomes for a course. On completion of this course, students should be able to:

  1. identify appropriate analytical models to describe and predict the behaviour of standard machine components.
  2. reduce the behaviour of a complex machine into appropriate sub- systems/elements and then analyse the behaviour of their elements.
  3. apply stress analysis theory, fatigue theory and appropriate criteria of failure to the design of simple machine elements.
  4. analyse and evaluate forces and stresses within common machine elements.
  5. carry out a complete design of a machine, including design calculations, selection of standard components and use of standards to select appropriate mechanical components from manufacturer鈥檚 catalogues.
  6. carry out kinematic and force calculations in gears trains, shaft design and bearing selection.
  7. apply codes and standards to machine component.
  8. produce complete design documentation such as project report and complete engineering drawings using advanced CAD modelling pack.
  9. reflect on environment, sustainability and community issues and incorporate these in your design of machines.
  10. select lubricants for mechanical drives.

Topics

Description Weighting(%)
1. Stress Concentration 5.00
2. Fracture 5.00
3. Fatigue 15.00
4. Buckling 5.00
5. Threaded Fasteners and Power Screws 10.00
6. Rivetted, Welded and Bonded Joints 10.00
7. Springs 10.00
8. Bearings and lubrication 10.00
9. Belt and Chain Drives 5.00
10. Gears drives 10.00
11. Shafts and Shaft Fittings 10.00
12. Brakes and Clutches 5.00

Text and materials required to be purchased or accessed

Juvinall, RC & Marshek, KM 2019, Fundamentals of machine component design, 7th edn, John Wiley & Sons, Australian and NZ.

Student workload expectations

To do well in this subject, students are expected to commit approximately 10 hours per week including class contact hours, independent study, and all assessment tasks. If you are undertaking additional activities, which may include placements and residential schools, the weekly workload hours may vary.

Assessment details

Approach Type Description Group
Assessment
Weighting (%) Course learning outcomes
Assignments Written Problem Solving No 20 1,2,3,4
Assignments Design Design 1 No 30 1,5,6,7
Assignments Design Design 2 No 50 1,2,3,4,5,6,7,8,9,10
Date printed 10 February 2023