Quadratic Contact Energy Model for Multi-impact Simulation
Publication in refereed journal


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摘要Simultaneous multi-impact simulation is a challenging problem that frequently arises in physically-based modeling of rigid bodies. There are several physical criteria that should be satisfied for rigid body collision handling, but existing methods generally fail to meet one or more of them. In order to capture the inner process of potential energy variation, which is the physical foundation of collisions in a multi-impact system, we present a novel quadratic contact energy model for rigid body simulation. By constructing quadratic energy functions with respect to the impulses, post-impact reactions of rigid bodies can be computed efficiently. Our model can satisfy the physical criteria and can simulate various natural phenomena including the wave effect. Also, our model can be easily combined with Linear Complementary Problem (LCP) and can provide feasible results with any restitution coefficient. In practice, our model can solve the simultaneous multi-impact problem efficiently and robustly, and we highlight its performance on different benchmarks.
著者Zhang TX, Li S, Manocha D, Wang GP, Sun HQ
期刊名稱Computer Graphics Forum
出版年份2015
月份10
日期1
卷號34
期次7
出版社WILEY-BLACKWELL
頁次133 - 144
國際標準期刊號0167-7055
電子國際標準期刊號1467-8659
語言英式英語
Web of Science 學科類別Computer Science; Computer Science, Software Engineering

上次更新時間 2020-18-05 於 04:51