engineering design & drawings. engineering design is structured problem solving various problem...
TRANSCRIPT
Engineering Design is Structured Problem Solving
• Various problem solving frameworks:– Commonality?
Define the problem
Develop alternative designs & select the most promising
Build a prototype
Test & redesign as necessary
Document & release the design
Drawings: The Universal Language
• Engineers make drawings to understand and communicate ideas
• Drawings are used throughout the entire engineering design process. – Freehand sketching is used for generating ideas and for
communicating them– Computer-aided design (CAD) is used to for both design
documentation and to evaluate design alternatives.• Engineering design still retains its artistic roots– Design requires both analysis and synthesis
Drawing Conventions: Rules of the Language
• Line techniques and lettering• Planar Projections– Axonometric– Multiview drawings– Auxiliary and sectional view
• Dimensioning and tolerancing• Examples
Free-Hand sketches---let’s have some fun• Tools• A freehand sketch begins with proportionally
laid out construction lines– Drawn thin & lightly– Guide the drawing
• Object lines are thicker, dark and uniform
Proportions• Approximating proportions
• Foreshortening