3D scanning can be used at multiple stages of the product development process. Scans are collected from target populations to analyze anthropometric size and shape variations. Representative 3D models are created based on scan data to aid in virtual and physical prototyping. Designs are evaluated virtually through fit analysis and finite element analysis before finalizing. The process allows iterative, data-driven optimization of product designs to match human diversity in an efficient manner.
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3D Scan Based Design in Product Development Process
1. 1
3D Scan-Based Design
in Product Development Process
Wonsup Lee, PhD
Researcher, Industrial Design Engineering, Delft University of Technology, The Netherlands
Ergonomics Design Consultant, Humanopia, Delft, The Netherlands
2. 2
3D Scanning in PD Process
Design
Planning
Data
Collection
Analysis
Design/
CAD
Proto-
typing
(Virtual)
Evaluation
Finalizing
7. 7
3D Scan Datasets in My Research
? [Face] Korean Air Force pilot (n = 336)
? [Head/Full-body] CAESAR North American (n = 2,299)
? [Head] Dutch children (n = 302)
? [Ear] Korean and Caucasian (n = 326)
? [Torso] Size Korea elderly woman (n = 271)
9. 9
4D Scan Example
? Supporting analysis of motion, changes, and skin deformations
10. 10
Important Questions in 3D Data Collection
? Whom to scan? Which target people?
? Age
? Gender
? Ethnicity
? Anthropometric condition (e.g. height > 2 m)
? How many scans?
? Which body part?
?
11. 11
Data Analysis & Design
Design
Planning
Data
Collection
Analysis
Design/
CAD
Proto-
typing
(Virtual)
Evaluation
Finalizing
12. 12
Anthropometry for Size Determination
Where to measure?
? 3D anthropometry: Measurements from 3D scans
15. 15
Design based on Representative Models
Size Korea
elderly woman
(n = 270)
Representative sizes
(Digital models)
3D-printed models
Hip Protector
Design
16. 16
Using Size/Shape Variation for Design
lip
nose
Aligned at sellion
chin
Mid-sagittal cross-section curves
for designing one of critical part
in medical oxygen mask
Analysis of
nasal root part
Variation of nasal root
eye level
variation
variation
17. 17
Ear-Root Shape Variation for Ear Hook Design
Filtering
Searching
average curve
1. Design of the form
2. Adjustable range
(coverage)
20. 20
Fit Analysis: Fit Map Analysis
? Analysis of fit between 3D forms of human and product
hard fit around
forehead, nose,
and cheek
loose fit at side
? Tightly wear for
fitting
? Higher discomfort at
forehead, nose, cheek
21. 21
Virtual Fit Evaluation
? Efficiency: Automatic analysis of fit with hundreds of people
? Applicable to search optimal form of a product
22. 22
Virtual & Physical Evaluation
Prototyping
Iterative
Design
Adjustment
Virtual
Evaluation
Design/CAD
Physical
Evaluation
? Optimize design virtually
? Minimize cost/time for prototyping and
usability test