Engineering Design 382021 Electrical Engineering 1 Engineering Design

Engineering Design 3/8/2021 Electrical Engineering 1

Engineering Design Steps • Identification of a need • Problem definition • Research • Constraints • Criteria • Analysis • Specification • Communication 3/8/2021 Electrical Engineering 2

Identification of a Need • Maybe self-starting • May be driven by upper management • May be an RFQ – Internal – External • Sometimes called “the requirements document” 3/8/2021 Electrical Engineering 3

Problem Definition • Statement of problem in engineering terms • Sometimes called “the engineering specification” 3/8/2021 Electrical Engineering 4

Research • Existing solutions • Internet • Your library • Government documents • Professional organizations • Trade journals • Vendor catalogs • Experts 3/8/2021 Electrical Engineering 5

Constraints • Physical limitations • Boundary conditions 3/8/2021 Electrical Engineering 6

Criteria - Desirable or required characteristics • Cost • Reliability • Weight • Ease of use and • • • maintenance Appearance Compatibility Safety 3/8/2021 • Noise level • Effectiveness • Durability • Feasibility • Acceptance • Ease of construction • Ease of testing Electrical Engineering 7

Analysis • Evaluation of potential solutions • Involves – – – Mathematical analysis Engineering analysis Comparative analysis – – – Validated Rejected Accepted with qualifications • Potential solutions are 3/8/2021 Electrical Engineering 8

Specification • Technical details of the solution so it can be produced – Numerical specifications – Graphical specifications – Parts list 3/8/2021 Electrical Engineering 9

Documentation • The written report – Appropriate cover page – Abstract – Table of contents – Table of figures – Body – Conclusions and recommendations – Appendixes 3/8/2021 Electrical Engineering 10