3D Scan Based Design in Product Development Process
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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 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)](https://image.slidesharecdn.com/3dscan-baseddesigninproductdevelopmentprocess-171128091435/85/3D-Scan-Based-Design-in-Product-Development-Process-7-320.jpg)
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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
- 4. 4 3D Body Scanning Artec hand-held scanner 3dMD scanner
- 5. 5 Ear Example Scanning of the ear including ear canal Outside Inside Merged
- 6. 6 Skin Deformation Example Scanning of deformed skin through a glass panel
- 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)
- 8. 8 4D Scanning: Series of 3D Image Frames
- 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
- 13. 13 Body Size & Representative Models 1st 5th 95th 99th 1 head height 334 238.7 9.6 212.5 263.0 214.7 223.3 255.0 258.8 2 head breadth 335 160.9 6.4 123.5 180.5 146.4 151.4 171.2 175.3 3 head length 335 187.0 6.9 162.0 204.0 168.2 177.0 198.5 202.0 4 head circumference 335 564.5 13.5 516.5 604.5 533.4 543.2 587.2 596.2 5 face length 336 123.4 6.1 106.7 140.4 108.0 113.1 133.2 136.6 6 lower face length 336 69.1 4.5 57.5 83.6 58.6 61.8 76.3 79.4 7 sellion-bottom lip length 336 97.1 5.2 80.7 114.1 85.3 88.3 104.7 109.4 8 bottom lip-menton length 336 26.4 3.0 18.6 36.2 19.7 21.4 31.0 34.6 9 nasal bridge-menton length 336 109.1 5.5 93.2 124.3 95.8 99.8 117.7 120.8 10 nasal bridge-chin length 336 95.8 5.6 78.2 108.9 83.7 86.7 104.9 108.1 11 chin-menton length 336 13.3 2.5 4.9 20.6 7.9 9.5 17.6 19.1 12 nose length 336 54.3 3.4 43.2 62.2 46.6 48.6 60.3 61.9 13 nose protrusion 336 18.4 1.9 12.9 23.9 14.2 15.3 21.6 23.0 14 face width 336 154.8 6.4 132.4 171.5 138.6 144.0 164.2 168.2 15 chin width 336 130.3 8.6 105.4 156.7 112.5 116.5 144.6 150.8 16 minimum nasal bridge breadth 336 20.0 2.8 12.3 27.7 14.0 15.2 24.6 26.8 17 maximum nasal bridge breadth 336 30.5 2.8 22.3 37.7 24.2 25.6 35.3 36.7 18 nose width 336 37.6 2.7 30.3 45.8 31.8 33.4 42.4 43.8 19 lip width 336 49.1 3.8 38.5 58.2 40.7 42.6 55.5 57.4 20 bitragion-menton arc 336 313.7 16.2 269.0 361.1 273.5 284.1 339.1 347.3 21 bitragion-subnasale arc 336 283.0 12.9 234.9 319.6 252.1 263.1 304.5 312.1 22 bizygomatic-menton arc 336 304.8 14.5 261.3 339.6 267.0 277.8 327.6 336.2 No. Anthropometric dimension Percentile MaxMinSDMeann 5%ile 25%ile 75%ile 95%ile
- 14. 14 Making Physical Representative Forms
- 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)
- 19. 19 Fit Analysis: Visual Check
- 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
- 23. 23 Finite Element Analysis FEA can be used for contact pressure estimation
- 24. 24 Summary Roughly introduced the applicability of 3D scanning in PD process Design based on (1) anthropometric size & (2) shape variations Size Measurement Product Design Size Measurement Representative Models Product Design Shape Variation Product Design (3) Design Virtual Evaluation iteration to find an optimized shape Design Planning Data Collection Analysis Design/ CAD Proto- typing (Virtual) Evaluation Finalizing
- 25. 25 Thank you Wonsup Lee, PhD (mcury83@gmail.com)