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Asian Journal of Applied Sciences

Year: 2012 | Volume: 5 | Issue: 6 | Page No.: 404-413
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Authors

Y.U. Chi-Yuang

Ming-Hui Liang

Keywords

Research Article

The Development of Real 3D Human Digital Model for Design

Y.U. Chi-Yuang and Ming-Hui Liang
The objective of this study was to develop a set of real 3D human digital model for design. For each gender, 15 digital models, stratified on 5 heights and 3 weights, of different body sizes were developed based on 3D Taiwanese body bank. The bodybank were scanned in 9 different postures, 1 standing and 8 others, the standing posture was used to construct the digital model and the rest 8 postures were used for evaluation. The skeletal system of the digital model consists of 35 segments and 11 rigid bodies, with 29 joints and 7 end nodes. Each joint is defined in spherical coordinate system with 4 degrees of freedom. The skeleton is organized in 5 paths: 1 torso, 2 upper extremities and 2 lower extremities. Then surface points of segment or rigid body are established as the function of 2 proximal and 2 distal adjacent nodes. Upon the construction of these digital models, they are manipulated to match and superimpose on those 8 different scanned postures. The results show that the maximum mismatch error for each digital model ranges between 25.2 and 37.7 mm, the averaged mismatch error ranges between 4.32 and 10.82 mm. With these maximum and averaged mismatch errors, they are quite promising for product and workplace design application. Later, this set of digital human models has been used to simulate many types of working postures for workplace design.
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