Title :
What´s wrong with collision detection in multibody dynamics simulation?
Author :
Flickinger, Daniel Montrallo ; Williams, Julia ; Trinkle, Jeffrey C.
Author_Institution :
Dept. of Comput. Sci., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
Contemporary time-stepping methods used in the dynamic simulation of rigid bodies suffer from problems in accuracy, performance, and robustness. Significant allowances for tuning, coupled with careful implementation of a broad phase collision detection scheme is required to make dynamic simulation useful for practical applications. A recently developed formulation method is presented herein that is more robust, and not dependent on broad-phase collision detection or system tuning for its behavior. Several uncomplicated benchmark examples are presented to give an analysis and make a comparison of the new Polyhedral Exact Geometry time-stepping method with the well-known Stewart-Trinkle time-stepping method. The behavior and performance for the two methods are discussed. This includes specific cases where contemporary time-steppers fail, and how they are ameliorated by the new method presented here. The goal of this work is to complete the groundwork for further research into high performance simulation.
Keywords :
digital simulation; dynamics; geometry; Stewart-Trinkle time-stepping method; collision detection; contemporary time-steppers; multibody dynamics simulation; polyhedral exact geometry time-stepping method; Accuracy; Computational modeling; Dynamics; Geometry; Mathematical model; Solid modeling; Trajectory;
Conference_Titel :
Robotics and Automation (ICRA), 2013 IEEE International Conference on
Conference_Location :
Karlsruhe
Print_ISBN :
978-1-4673-5641-1
DOI :
10.1109/ICRA.2013.6630689