The Design Process

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An overview of the design process as applied to engineering situations. A review of the purpose and key stages of the process are discussed.

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The Design Process

  1. 1. The Design Process Author: Leicester College Date created: Date revised: 2009 Abstract: This presentation looks at the design Process as applied to practical Engineering situations. An overview of design considerations and the basic methodology is given. Each stage of the process is explained and its relevance to modern engineering practice is discussed. © Leicester College 2009. This work is licensed under HNC In Engineering – Design for manufacture a Creative Commons Attribution 2.0 License. Edexcel HN Unit: Engineering Science (NQF L4)
  2. 2. • Engineering Design • What Makes Good Design? • Factors Affecting Design • The Design Process • The Design Process 1 • The Design Process 2 • The Design Process 3 • The Design Process- An Iterative Model • The Design Process- A Linear Model • Credits This presentation supports the Edexcel HN unit – Engineering design. Unit Key words outcome The Design Process 1 Design, Process, Problem, Brief, stages, Material selection 1.3 Materials, design, cost, selection, service requirements, processing The Task 1.1-1.4 Design, specification, customer requirements, service needs, product, task list Spec. Phase 1.2, 1.4, PDS, specifications, performance, environment, factors 2.1 User needs 1.1, 2.1, Specification, service requirements, performance, user 2.4 Design intro 1 Concepts, design, ergonomics, fit for purpose For further information regarding unit outcomes go to Edexcel.org.uk/ HN/ Engineering / Specifications
  3. 3. Engineering Design Engineering definition; The application of science, knowledge and skills to solve problems and provide solutions in general beneficial to humankind The Design Process
  4. 4. What so good about this particular design ? © Elvisrocks59 2008. Sourced from picasaweb.google.com/.../sCrbeWGv2eec0jyZ7LJePw available under Creative Commons licence. The Design Process
  5. 5. What makes a good design ? © Rami ™ - Pin: 20D67EC3 2009 sourced from © Brett Weinstein 2006, sourced from http://www.flickr.com/photos/rhk313/3757220561/sizes/l/ wikimedia.org/wikipedia/commons/9/96/SC06_2003_Enzo_Ferrari.jpg available under a Creative Commons licence. available under Creative Commons licence. Alternatively – How can we assess these designs ? The Design Process
  6. 6. What makes a good design ? Fit for purpose Cost effective Successful ? Iconic Long lasting Does the job its design for in the most effective, efficient manner. The Design Process
  7. 7. Factors affecting design performance  Cost effective  Satisfies service requirements  Can be made – achievable Like this ?
  8. 8. The design process A methodology which requires a logical, sequential analysis of the design problem to be solved. Set out in stages which helps us to progressively develop a solution to the problem set. The best solution given the Technology available at the Time. © Cod Gabriel 2008. Sourced from http://www.flickr.com/photos/8628950@N06/2770856499/ available under Creative Commons licence. The Design Process
  9. 9. The design process 1 – Recognition of the problem to be solved BRIEF  Recognition of problem  Identification of needs  Recognition of situation INVESTIGATION  Research in topic – what exists already  Collation of relevant information  Analysis of topic  Specification of requirements The Design Process
  10. 10. The design process 2 – Creative phase IDEAS  Generation of realistic ideas to satisfy product design brief and functional requirements EVALUATION  Evaluation of ideas against the specification  Identification of proposed solution DEVELOPING  Sketching, modeling refining proposed solutions The Design Process
  11. 11. The design process 3 - Implementation PLANNING  Drawings from which the product can be realised  Parts list, planning sheets for realisation Manufacture  Make the product to design  Evaluate in the field Revisit the original design – good designs ‘evolve’ over time © moguphotos 2008. Sourced from http://www.flickr.com/photos/bygenejackson/3113238256/sizes/l/ available for download under a Creative Commons licence. The Design Process
  12. 12. The design process In reality we produce products which satisfy an immediate need as the customer wants it yesterday. Major innovation in design and manufacture require us to look into new materials, manufacturing technologies and potential markets to ‘look into the Future. to this © Kenjonbro 2009, sourced from http://www.flickr.com/photos/kenjonbro/3796523562/sizes/m/ © Tracey & Jim Hofman 2005, sourced from available under a Creative Commons licence. http://picasaweb.google.com/lh/photo/fguEIpssRmIZ2dWahBomDg available under a Creative Commons licence. The Design Process
  13. 13. The design process – analysis of the design © Design and Technology Student 2009, sourced from http://www.flickr.com/photos/designandtechnologydepartment/4086095092/sizes/l/ available for download under a Creative Commons licence. The Design Process
  14. 14. The design process In engineering we use the design process to provide solutions to problems – by applying a logical set of stages. In reality these are usually reduced in length because of;  Previous experience / knowledge  Custom and practice  What the competition are doing The Design Process
  15. 15. This resource was created Leicester College and released as an open educational resource through the Open Engineering Resources project of the Higher Education Academy Engineering Subject Centre. The Open Engineering Resources project was funded by HEFCE and part of the JISC/HE Academy UKOER programme. © 2009 Leicester College Except where other wise stated, this work is licensed under a Creative Commons Attribution 2.0 License. The JISC logo is licensed under the terms of the Creative Commons Attribution-Non-Commercial-No Derivative Works 2.0 UK: England & Wales Licence. All reproductions must comply with the terms of that licence. The HEA logo is owned by the Higher Education Academy Limited may be freely distributed and copied for educational purposes only, provided that appropriate acknowledgement is given to the Higher Education Academy as the copyright holder and original publisher. The Leicester College name and logo is owned by the College and should not be produced without the express permission of the College. The Design Process

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