Reference no: EM132383341 , Length: 25 pages

301022 Advanced Computer Aided Engineering

School of Computing, Engineering and Mathematics

Western Sydney University

CAE Project

CAE of a Shredder

Learning goals

To narrow down the gap between fundamental theories and practical applications of Finite Element Method (FEM) and Finite Element Analysis (FEA) on Computer Aided Engineering through synergistically and systematically applying what we learn in this unit 301022 Advanced Computer Aided Engineering to design a typical mechanical device - a shredder to perform a CAE practice and finish design loops in the assessment task - CAE Project.

Design of a mini shredder using gear drives

A typical design of a hand-powered mini shredder using gear drives has been shown in Figure 1, which was especially designed for recycling thermoplastics, i.e., ABS (acrylonitrile butadiene styrene) and PLA (Polylactic acid).

Design Methodology

You will be allocated to a team of 2-4 students to achieve the design goals with creative ideas together and for equity, a peer-review report to evaluate each team member's contribution is employed with the group slides and design report for submission at the end of the semester as required in the learning guide. In your team you should have a unified and clear target to design the shredder and its accessories including belt/chain drive to transfer the power and torque from the electrical motor to the input shaft of the shredder. Electric motor could be chosen roughly. The team members should have a discussion to

allocate the design tasks evenly. Your design may involve in the following commonly-used machine elements:
• Gear drives
• Belt and Chain Drives
• Keys, Couplings and Seals
• Machine Housing
• Shafts
• Bearings

The design will be mainly focused on gear, belt and chain drives and couplings, aligning with the unit contents of 301022 Advanced Computer Aided Engineering.
• Design identification and requirement analysis of the shredder machine system
• CAD modelling and motion analysis of the shredder machine system
• FE modelling and simulation of the shredder machine system by appropriately de-featuring the CAD model constructed, by choosing two or three or four studies (2 for a team of 2 Students, 3 for a team of 3 students, 4 for a team of 4 students, respectively) from the following finite element analyses highlighted, which are available in ANSYS Workbench

General criteria for assignments

The highest grades will be given to submissions that:
• make clear statements about the CAE project in terms of needs and goals;
• show a high standard CAD model of the shredder machine system;
• show a high standard FE model of the shredder machine system;
• show a high standard understanding on FEA of the shredder machine system in appropriate loading scenarios;
• show clear evidence of literature research, and evaluation of products already on the market by paying considerable attention to their benefits and shortcomings;
• clearly document the CAE project's development and show consideration of alternative approaches, methods or material considerations; and
• provide a high standard evaluation that demonstrates an understanding of the strengths and weaknesses in the shredder machine system through detailed finite element analyses.

The qualities described above are critical features central to good CAE practice. Consider the methodologies you devise in order to communicate the extent of your personal achievements of the above criteria as your first CAE challenge.

CAE (FEA) report

A CAE (FEA) report would most likely contain the following items (separated by headings and subheadings):
• Title page
• Executive Summary
• Table of Contents page
• Introduction & Background
• Aim and Objectives

• Main body - The contents of this section (divided into suitably headed subsections) is subject to change, and it depends upon what is being examined. Typical contents would be i ncl udi ng Detailed design information of the shredder machine system, Physical problem, CAD modelling of the machine, FE modelling of the machine, Finite Element Analyses of the machine (Preliminary analysis, de-featuring and assumptions made for FEA, decision making process and final analyses, Results and Discussion. The sub-sections in this main body can be suggested as follows:
1. Detailed design information of the shredder machine system
2. CAD modelling of the machine
3. FE modelling of the machine
4. Finite Element Analyses of the machine, de-featuring and assumptions made for FEA, decision making process
5. Results and Discussion
• Conclusions
• Acknowledgments
• References
• Appendices - Peripheral information, including catalogues, technical drawings and detailed calculations may be placed here or in the main body of the report depending upon its relevance (e.g. repetitive calculations should be left in the appendices, but you may wish to include a sample calculation within the body) ‘standard' calculations would also be better in this section. Also there should be an appendix to indicate the technical contributions from each member.

Attachment:- Advanced Computer Aided Engineering.rar