Abstract
A method of animating articulated (linked) bodies such as humans, animals and robots using dynamic analysis is presented. Dynamic analysis predicts motion by analyzing the effect of forces and torques on mass; this is different than the usual kinematic method of specifying motion, where positions, velocities, and accelerations are given without considering the forces and torques producing motion. It is difficult to kinematically specify realistic motion, particularly in cases where the body is moving fast, in complex patterns, or with great freedom. In such cases, animation based on dynamic analysis, though more expensive, may be preferable. Animation using dynamic analysis is also useful in the design and control of robots and other mechanical manipulators, and for analyzing the movement of humans and animals in biomechanics and sports.
Résumé
Nous présentons une méthode pour Fanimation d’objets articules, tels que les humans, les animaux et les robots. Cette melhode est bases sur Vanalyse dynamique, ce qui permet de priddire les mouvements grace ii une analyse des effets des forces et des moments sur les masses. Ceci differs de I’approche kindmatique plus habituelle consistant à specifies les mouvements en prercisant uniquement les, position, vittesse et acceleration des objets sans accorder aucune attention aux forces et moments i l’origine de ces mouvements. Il est ardu de specifies kinidmatiquement un mouvement realists, surtout lorsque l’objet se derplace rapidement, de fapon complexe, ou avec beaucoup de liberte . Dans de tels cas, une animation bases sur Fanalyse dynamique peat étre preferable malgre son cofit plus eleve . Cette approche à Fanimation peat également étre pratique pour la conception et le controls des robots et autres manipulateurs m6caniques, ainsi que pour I’analyse des mouvements humans et animaux aussi bier en biomécanique quéen sports.
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© 1985 Springer-Verlag Tokyo
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Wilhelms, J.P., Barsky, B.A. (1985). Using Dynamic Analysis to Animate Articulated Bodies such as Humans and Robots. In: Magnenat-Thalmann, N., Thalmann, D. (eds) Computer-Generated Images. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68033-8_19
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DOI: https://doi.org/10.1007/978-4-431-68033-8_19
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68035-2
Online ISBN: 978-4-431-68033-8
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