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Learn about the ideation, refinement, and implementation stages of the design process. Discover how to create solid object features, visualize engineering drawings, and solve missing line problems. Practice sketching and modeling for effective design communication.
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Design Process and Visualization Lecture 2 Autumn Quarter
Topics For Today • Questions on Drawings 1 and 2 ? • Purdue Visualization Assessment • Online through WebCT (22 minutes) • http://class.osu.edu > H191 > Purdue Visualization • Introduction To Engineering Design Process • Design Visualization & More Freehand Sketching • Work on Drawings 3 and 4 • Permanent Seat Assignment Today Autumn Quarter
Engineering Design Process - Chap 14 • IDEATION • REFINEMENT • IMPLEMENTATION Autumn Quarter
What Is Design? • PROCESS OF CONCEIVING OR INVENTING IDEAS • COMMUNICATING THOSE IDEAS TO OTHERS • PRIMARY PURPOSES: • PERSONAL EXPRESSION • PRODUCT OR PROCESS DEVELOPMENT Autumn Quarter
The Art Of Design • CREATIVITY AND EXPRESSION • DESIGNING FOR LOOK AND FEEL • DESIGN FOR FUNCTION AND PURPOSE Autumn Quarter
The Practice Of Engineering Design • FOR ENGINEERS IT IS DESIGN WITH ANALYSIS • DESIGNING TO SOLVE A PROBLEM • PRODUCT DESIGN • SYSTEM OR PROCESS DESIGN Autumn Quarter
The Ideation Process • PROBLEM IDENTIFICATION • Problem Statement • Research • Data Gathering • Objectives • Limitations • Scheduling Autumn Quarter
PRELIMINARY IDEAS Notes Sketches/Models Brainstorm Synthesis PRELIMINARY DESIGN Evaluation Selection The Ideation Process Autumn Quarter
MODELING Geometric Simulation Animation Charts, Graphs, Diagrams DESIGN ANALYSIS Properties Mechanism Functional Human Factors The Refinement Process DESIGN VISUALIZATION Autumn Quarter
The Implementation Process • PLANNING • PRODUCTION • MARKETING • FINANCE • MANAGEMENT • SERVICE • DOCUMENTATION Autumn Quarter
Design Visualization • Eye - Hand coordination is important when sketching • Eye - Mind - Hand connection is crucial to "ideation" sketching • First step is make a sketch to understand the 3-D object or its design • Next step is to evolve the design • Reference: BTG Chapter 3 Autumn Quarter
Solid Object Features • Features or Attributes of an object: • Edges • Faces • Limiting Element(s) • Vertices • Shape (of faces) Autumn Quarter
General Visualization Techniques • Solid Object Combinations • Additive • Subtractive • Planar Surfaces • Cutting Plane - normal, inclined, oblique • Symmetry Autumn Quarter
Visualization Techniques For Engineering Drawings • Image plane • Like 2D picture • Object-Image Orientation • Gives rise to Primary Axes and thinking about the third dimension • Multiple Image Planes • Produces our Multiview Drawings Autumn Quarter
Missing Line Problem – Example 1 One or more lines are missing. Add lines to make views complete. Autumn Quarter
Example 1 Solution Missing Line Problem Autumn Quarter
Missing Line Problem – Example 2 One or more lines are missing. Add lines to make views complete. Limiting element Autumn Quarter
Example 2 Solution Missing Line Problem Autumn Quarter
In Class Exercise Given the Top and Front views shown here, how many right side views can you draw? Discuss at your table Hint: Verify by sketching the isometric view Autumn Quarter
A B C Possible Solutions There are many more Autumn Quarter
Assignments • Dwg 3 – ML-2 – Add missing line(s). Sketch pictorials as needed to solve problems. • Due at end of today’s lecture • Dwg 4 – A6 – Draw the missing line in each orthographic set in PENCIL (using red to draw the missing lines is optional) • Due at beginning of next lecture Autumn Quarter