ADVANCED COMPUTER AIDED ENGINEERING

SHE Level 5
SCQF Credit Points 30.00
ECTS Credit Points 15.00
Module Code MMH123668
Module Leader Andrew Cowell
School School of Computing, Engineering and Built Environment
Subject Mechanical Engineering
Trimester
  • B (January start)

Summary of Content

The aim of this module is to give the student an insight into the complete product design and manufacture process. This will be achieved by furthering the students' knowledge and ability of the application of CAD/CAM and Simulation techniques to the Design & Manufacture of engineering components. This process will be integrated from the design stage through to manufacturing and will include a major case study.

Syllabus

This module consists of an essentially hands-on approach by concentrating on the requirements of a CAD/CAM system for the design and manufacturing processes. The teaching syllabus will cover the following areas: The configuration of hardware and software, networking of devices and appropriate standards in graphics, communication and data exchange are discussed. The increasing role of 3D modelling and the corresponding production of components/models by rapid prototyping techniques are discussed. The CAD/CAM process is illustrated by means of selected studies and coursework to apply the Design Process (CAD), Modelling and Simulation Techniques, Engineering Analysis (FEA), and manufacture of engineering components (CAM). A selected system or component will be the focus for each activity in turn to apply the techniques described and interact with the other areas of study. The use of feature based associative software to generate 3D components/parts and assemblies and create corresponding 2D drawings. Explain the integrative modular approach to current CAD/CAM software and invoke the appropriate modules for FEA analysis of the parts generated above and appropriate mould flow analysis for injection moulding. The various types of Finite Element Analysis, different element types, and the basic phases of the solution process are explained. Commercial Codes, Idealisation, Discretisation, Boundary Conditions, Convergence and validation of results, techniques for use of symmetry and resource requirements are discussed. The application of a commercial finite element code for the solution of 2D plane stress, axisymmetric and 3D thin shell problems. Component data from a CAD system is transferred to a Computer Aided NC programming system (CAM) using an appropriate data exchange standard (IGES or DXF etc.) The use of macros and tool databases, production of operation set-up sheets, production of programs for more complex components. As part of the CAM process, the injection moulds for the part will be produced, as well as undertaking a mould flow analysis. The machine codes required to produce these moulds will then be generated using proprietary software.

Learning Outcomes

On successful completion of this module students should be able to:-1. Critically appraise CAD/CAM hardware and software and applications software, respective configurations and capabilities.2. Demonstrate extensive knowledge of the integration of CAD/CAM applications and Modelling and Simulation techniques into the design and manufacture processes.3. Demonstrate a deep understanding of the role of standards in CAD/CAM and their application to graphics, communication and data exchange.4. Give a detailed description of the approaches to networking and the elements of the ISO OSI approach.5. Critically appraise the nature and scope of rapid prototyping techniques.6. Generate 3D parts/components and assemblies of a significant complexity, and associated 2D drawings, using feature-based CAD/CAM software.7. Demonstrate a deep understanding of the integrative and associative nature of CAD/CAM software.8. Demonstrate a deep understanding of the application of appropriate modules to involve analysis such as FEA and mould flow.9. Have an extensive and detailed knowledge of the underlying principles of the Finite Element Method applicable to practical Finite Element Analysis.10. Apply Finite Element Modelling techniques to the analysis of simple engineering components using commercial code and critically appraise the results of these analyses.

Teaching / Learning Strategy

The module will be taught by lectures, practical exercises, tutorials, and case studies.

Indicative Reading

Texts: A Finite Element Primer for Mechanical Design, C E Knight, PWS Publishing Company, 1994. A Finite Element Primer, NAFEMS, Department of Trade, 1987. A Finite Element Dynamic Primer, NAFEMS, Department of Trade, 1992. Using Finite Elements in Mechanical Design, J T Mottram & C T Shaw, McGraw Hill, 1996. Finite Element Analysis: Theory and Applications with ANSYS, S Moaveni, Prentice Hall, 2003. Mechanical Engineers Data Handbook, J. Carvil, IMechE/Butterworth-Heineman, 2000 Fundamentals of Modern Manufacturing, Materials and Processes, M.P. Groover, Prentice-Hall, 1996 Pro-Engineer Instructor, D.S. Kelly, McGraw-Hill, 2001 The CNC Workshop - A Multimedia Introduction to Computer Numerical Control, F. Nanfara, T. Uccello and D. Murphy, Addison-Wesley, 1999 Websites/pages: www.me.umn.edu/~klamecki/Machining/mainmachining.html www.mmu.ic.polyu.edu.hk/Visual_c/material.htm www.menet.umn.edu/~bhate/temp/TA_web/matl/tutorials/tut.html www.staffs.ac.uk/~entdgc/WildfireDocs/tutorials.htm

Transferrable Skills

Problem Solving; Problem Idealisation; IT Skills; Technical Report Writing; Engineering Principles Integration. Development of higher level cognitive skills including analysis and synthesising skills.

Module Structure

Activity Total Hours
Independent Learning (FT) 140.00
Lectures (FT) 40.00
Tutorials (FT) 20.00
Practicals (FT) 80.00
Assessment (FT) 20.00

Assessment Methods

Component Duration Weighting Threshold Description
Coursework 1 n/a 20.00 45% Computer Based Exercise and Report: Static Linear Stress Analysis
Coursework 2 n/a 20.00 45% Computer Based Exercise and Report: Thermal Analysis
Coursework 4 n/a 40.00 45% Computer Based Exercise and Report: CAD/CAM Integration and Product Analysis
Coursework 3 n/a 20.00 45% Computer Based Exercise and Report: Manufacturing and Material Assessment