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2004-06-15
Technical Paper
2004-01-2171
Antonio Y. Layon, Martin de Lasa, Robert Playter, Shervin Talebi, Michael LaFiandra, Louis Piscitelle, John Obusek
This paper presents a validation study of a physics-based simulation of human walking. We simulated four different subjects walking on the level with nine different backpacks. Compared against experimental data of subjects under the same conditions, simulation results are shown to predict peak ground reaction forces, joint angles, and the subjects’ adjustment to lean angle necessary to dynamically balance the load and achieve stable walking at 1.4 m/s.
2001-06-28
Technical Paper
2001-01-2121
Robert Playter, William Blank, Darrin Jewell, Nancy Cornelius, Jerry Pratt, John Obusek
Boston Dynamics is developing the Digital Biomechanics Laboratory (DBL), a physics-based modeling tool for simulating humans and equipment. A key distinction of the DBL is the ability to simulate actively controlled human behavior, tasks such as walking, running, and carrying loads. The DBL combines forward dynamics simulation of the body, contact detection, contact force modeling, equipment modeling, and advanced control to simulate realistic human tasks. We are using the DBL to study the biomechanics of load carriage. In this paper we report on our effort to validate the simulation through comparisons to live subject experiments.
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