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A Minimum-Effort Motion Algorithm for Digital Human Models
Technical Paper
2003-01-2228
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A new realistic motion control algorithm for digital human models is presented in this paper based on the principle of effort minimization. The proposed algorithm is developed through an innovative mathematical model to make the applications more flexible and more global, especially for the visualization of human motions in automotive assembly operations. The central idea of this unique model is to interpret the solution of the homogeneous Lagrange equation for a mannequin as the origin of dynamic motion. Furthermore, a digital human possesses about 42 joints over the main body except the head, fingers and toes, and offers a large room of kinematic redundancy. We have found 14 new 3-D independent motion markers assigned over the human body to constitute a Cartesian coordinate system, under which a minimum-effort based dynamic control scheme is developed using a state-feedback linearization procedure. The digital human can then be controlled and maneuvered to perform a given desired task while automatically generating realistic postures. The computational complexity is reduced significantly in comparison with the algorithms using joint angles as the generalized coordinates.
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Citation
Gu, E., Teng, Y., and Oriet, L., "A Minimum-Effort Motion Algorithm for Digital Human Models," SAE Technical Paper 2003-01-2228, 2003, https://doi.org/10.4271/2003-01-2228.Also In
References
- Faraway, J. J. 2000 Modeling Reach Motions Using Functional Regression Analysis Proc. 2000 SAE Digital Human Modeling for Design and Engineering Conference Dearborn, Michigan June
- Chaffin, D. B. 2002 Simulation of Human Reach Motions for Ergonomics Analyses Proc. 2002 SAE Digital Human Modeling for Design and Engineering Conference Munich, Germany June 2002 9 24
- Park, W. Chaffin, D.B. Martin, B.J. 2002 Memory-Based Motion Simulation Proc. 2002 SAE Digital Human Modeling for Design and Engineering Conference Munich, Germany June 2002 255 270
- Gu, E.Y. Teng, Y. Oriet, L. 2002 A Study of Human Joint Torque Distribution for Optimal Posture Auto-Generation Proc. 2002 SAE Digital Human Modeling for Design and Engineering Conference Munich, Germany June 2002 421 430
- Ayoub, M.M. Woldstad, J.C. Lin, C.J. Bernard, T. 1998 A model to predict human motion during lifting Proceedings of 1998 SAE Digital Human Modeling for Design and Engineering Conference Dayton, Ohio April 28-29
- Abdel-Malek, K Yu, W. Jaber, M. Duncan, J. 2001 Realistic Posture Prediction for Maximum Dexterity Proceedings of 2001 SAE Digital Human Modeling for Design and Engineering Conference Arlington, VA June 26-28
- Gu, E.Y.L. 2000 Configuration Manifolds and Their Applications to Robot Dynamic Modeling and Control IEEE Transactions on Robotics and Automation 16 5 Oct. 2000 517 527
- Landau, L. D. Lifshitz, E. M. 1960 Mechanics Addison-Wesley
- Arnold, V. I. 1978 Mathematical Methods of Classical Mechanics Springer-Verlag New York
- Dubrovin, B. A. Fomenko, A. T. Novikov, S. P. 1992 Modern Geometry - Methods and Applications, Part I - The Geometry of Surfaces, Transformation Groups, and Fields Springer-Verlag New York
- Berger, M. Gostiaux, B. 1988 Differential Geometry: Manifolds, Curves, and Surfaces Springer-Verlag New York
- Isidori, A. 1989 Nonlinear Control Systems 2nd Springer-Verlag New York
- Slotine, J. J. Li, W. P. 1991 Applied Nonlinear Control Prentice Hall New Jersey
- Badler, N.I. Phillips, C.B. Webber, B.L. 1993 Simulating Humans Oxford University Press New York 1993
- Girard, M. 1991 Constrained Optimization of Articulated Animal Movement in Computer Animation, Making Them Move: Mechanics, Control, and Animation of Articulated Figures Badler, N.I. Barsky, B.A. Zeltzer, D. Morgan-Kaufmann San Mateo, CA. 209 232