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Motion Prediction and Inverse Dynamics for Human Upper Extremities
Technical Paper
2005-01-1408
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Santos™, a digital human avatar developed at The University of Iowa, exhibits extensive modeling and simulation capabilities. Santos™ is a part of a virtual environment for conducting human factors analysis consisting of posture prediction, motion prediction, and ergonomics studies. This paper presents part of the functionality in the Santos™ virtual environment, which is an optimization-based algorithm for simulating dynamic motion of Santos™. The joint torque and muscle power during the motion are also calculated within the algorithm.
Mathematical cost functions that evaluate human performance are essential to any effort that would evaluate and compare various ergonomic designs. It is widely accepted that the ergonomic design process is actually an optimization problem with many design variables. This effort is basically a task-based approach that believes humans assume different postures and exert different forces to accomplish different tasks. We propose using the concepts of design variables, cost functions, and constraints to formulate the optimization problem for motion/posture prediction.
Various human performance measures are currently being reported in research literature as cost functions for motion/posture optimization. Energy consumption is one of the most widely used human performance measures, where total muscle energy is decomposed as mechanical work and heat. An inverse dynamics problem is formulated by minimizing muscle energy cost subject to several physical and physiological constraints to solve for the joint torques, as well as the joint kinematic profiles. The results of the generalized torque at each joint should be useful in future studies of muscle stress prediction with a given task.
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Authors
- Joo H. Kim - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design, The University of Iowa
- Karim Abdel-Malek - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design, The University of Iowa
- Jingzhou Yang - Virtual Soldier Research (VSR) Program, Center for Computer-Aided Design, The University of Iowa
- Kyle Nebel - U.S. Army TACOM/RDECOM, AMSRD-TAR-NAC/157
Topic
Citation
Kim, J., Abdel-Malek, K., Yang, J., and Nebel, K., "Motion Prediction and Inverse Dynamics for Human Upper Extremities," SAE Technical Paper 2005-01-1408, 2005, https://doi.org/10.4271/2005-01-1408.Also In
References
- Alexander, R.M. 1997 “A minimum energy cost hypothesis for human arm trajectories” Biological Cybernetics 76 1997 97 105
- Anderson, F.C. Pandy, M.G. 2001 “Static and dynamic optimization solutions for gait are practically equivalent” Journal of Biomechanics 34 2 February 2001 153 161
- Bhargava, L.J. Pandy, M.G. Anderson, F.C. 2004 “A phenomenological model for estimating metabolic energy consumption in muscle contraction” Journal of Biomechanics 37 1 January 2004 81 88
- Chaffin, D.B. 1997 “Development of computerized human static strength simulation model for job design” Human Factors and Ergonomics in Manufacturing 7 1997 305 322
- Fu, K.S. Gonzalez, R.C. Lee, C.S.G. 1987 “Robotics: Control, Sensing, Vision, and Intelligence” McGraw-Hill 1987
- Hase, K. Yamazaki, N. 1997 “Development of three-dimensional whole-body musculoskeletal model for various motion analyses” JSME International Journal 40 1 Mar 1997 25 32
- Hill, A.V. 1938 “The heat of shortening and the dynamic constants of muscle” Proc. R. Soc. Lond. 126 136 195
- Khang, G. Zajac, F.E. 1989 “Paraplegic standing controlled by functional neuromuscular stimulation - I: Computer model and control-system design” IEEE Transactions on Biomedical Engineering 36 9 873 884
- Kim J. Abdel-malek, K. Mi, Z. Nebel, K. Layout Design Using an Optimization-based Human Energy Consumption Formulation SAE Digital Human Modeling for Design and Engineering June 15-17 2004 Rochester, Michigan, USA
- Mi, Z. 2004 “Task-based prediction of upper body motion” Ph.D. Dissertation The University of Iowa Iowa City, Iowa May 2004
- Sciavicco, L. Siciliano, B. 1996 “ Modeling and Control of Robot Manipulators ” McGraw Hill
- Sherwood, L. 1997 “Human Physiology: from cells to systems” Third Wadsworth Publishing Co.
- Umberger, B.R. Gerritsen, K.G.M. Martin, P.E. 2003 “A model of human muscle energy expenditure” Computer methods in biomechanics and biomedical engineering 6 2 2003 99 111
- Yang, J. Marler, R.T. Kim, H. Arora, J. Abdel-Malek, K. 2004 “Multi-objective Optimization for Upper Body Posture Prediction” 10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference August Albany, NY