The Engineering Design Process Design is an Iterative
- Slides: 7
The Engineering Design Process
Design is an Iterative Process • Begins with a recognition • Models or prototypes are of need for a product, made and problems that service, or system arise may require new • During the idea phase ideas to solve and a return encourage a wide variety to an earlier stage in the of solutions through process brainstorming, literature • Finally drawings are search, and talking to released to manufacturing users for production • Best solutions are selected for further refinement
Engineering Design Uses Sketching & CAD • Ideas are initially sketched and then more accurate CAD drawings are created • A single accurate CAD database can be used to go from ideation to manufacturing and documentation. • Finite Element Analysis, 3 D rendering, animation, documentation, rapid prototyping software available for use with CAD.
Terminology CAD: Computer Aided Design CADD: Computer Aided Design & Drafting CAM: Computer Aided Manufacturing CIM: Computer Integrated Manufacturing CAE: Computer Assisted Engineering Reading Drawings: Interpreting drawings made by others Technical Drawing: Drawings used to express technical ideas Engineering Design Graphics: Technical Drawings representing designs & specifications for physical objects
Freehand Sketching • Freehand sketching is used in engineering graphics to quickly communicate your ideas or designs. • Drawing instruments and CAD are not always available, especially during field work • Freehand sketching is not sloppy sketching! Your sketches need to be interpreted by others on your design team – use good lettering.
Example Freehand Sketch for Concept Development
Summary • Engineering drawing can be a universal language to communicate your ideas. • The engineering design process uses sketching and CAD to communicate and record ideas. • A single CAD database can be used to produce many types of drawings and models used throughout the design process. . ie: NC manufacturing, inspection, shipping containers