Introduction to Engineering Design 4th Edition Chapter 19 Introduction to Engineering Design

What you will learn Minds-on transition to Hands-on Nature of Engineering Design Not singled value answers Importance of teaming and characteristics of a good designer. Two ground rules for successful designing Need for a systematic approach Hands-on exercise – the Tower Exploring Engineering

What’s Unique about Design? Unlike homework problems, there are NO unique answers! Design is a balance of competing requirements. E.g., you could make an airplane that would be 100% safe in an accident – but it would be too heavy to fly! How do you achieve a design balance among competing criteria? Most designs are hands-on, meaning you have to build and test a working prototype. Exploring Engineering 3

Every Design Project … Teams are needed because the magnitude of most projects is too large for one person to handle A good designer is curious about how things work A good designer can manage several simultaneous tasks A good designer has a clear understanding of where to go A good designer engages all the team members A good designer pushes the team without seeming to Exploring Engineering 4

Ground Rules for any Design Use a Design Notebook* Put ideas, notes, graphs, sketches etc. in the notebook so others can follow your thinking and your design. If some competitor claims prior invention (in a legal suit or a patent contest) you will have a clear, dated, signed response that will be accepted in any court * A page numbered, margined, lined, “lab notebook” available in any office supply store, pharmacy, college book store etc. Exploring Engineering 5

Ground Rules for any Design Teaming and the team leader (if any) Team leader may be assigned or spontaneously arise from the team Team leader is a participant, not a supervisor, and leads by example Successful teams assign clear roles and work assignments Team leader fosters good internal communication in the team Shares leadership responsibilities Team decisions by consensus Exploring Engineering 6

Systematic Approach 1 Define the problem 2 Generate alternative concepts 3 Evaluate and select a concept 4 Detail the design 5 Design defense 6 Manufacture and test 7 Evaluate performance 8 Prepare the final design report Exploring Engineering 7