Multi-contact frictional rigid dynamics using impulse decomposition

@article{Li2017MulticontactFR,
  title={Multi-contact frictional rigid dynamics using impulse decomposition},
  author={Sheng Li and Tianxiang Zhang and Guoping Wang and Hanqiu Sun and Dinesh Manocha},
  journal={2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)},
  year={2017},
  pages={6420-6427}
}
  • S. Li, Tianxiang Zhang, +2 authors D. Manocha
  • Published 1 September 2017
  • Computer Science
  • 2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
We present an interactive and stable multi-contact dynamic simulation algorithm for rigid bodies. [...] Key Method We use a new friction model that performs velocity-level multi-contact simulation using impulse decomposition. Moreover, we accurately handle friction at each contact point using contact distribution and frictional impulse solvers, which also account for relative motion. We evaluate our algorithm's performance on many complex multi-body benchmarks with thousands of contacts. In practice, our…Expand

References

SHOWING 1-10 OF 36 REFERENCES
Fast frictional dynamics for rigid bodies
TLDR
A novel contact model is employed that uses mass, location, and velocity information from all contacts, at the moment of maximum compression, to constrain rigid body velocities and develops a new friction model in the configuration space of rigid bodies.
Formulating Dynamic Multi-Rigid-Body Contact Problems with Friction as Solvable Linear Complementarity Problems
A linear complementarity formulation for dynamic multi-rigid-body contact problems with Coulomb friction is presented. The formulation, based on explicit Euler integration and polygonal approximation
Staggered projections for frictional contact in multibody systems
We present a new discrete velocity-level formulation of frictional contact dynamics that reduces to a pair of coupled projections and introduce a simple fixed-point property of this coupled system.
Stable penalty-based model of frictional contacts
  • K. Yamane, Yoshihiko Nakamura
  • Engineering, Computer Science
    Proceedings 2006 IEEE International Conference on Robotics and Automation, 2006. ICRA 2006.
  • 2006
TLDR
The model solves the problems in implementing Coulomb's friction model for computer simulation: iterative computation and slip velocity threshold and introduces a robust method for computing the normal vector and penetration depth at each contact point of a pair of interpenetrating polygonal objects.
A convex, smooth and invertible contact model for trajectory optimization
  • E. Todorov
  • Mathematics, Computer Science
    2011 IEEE International Conference on Robotics and Automation
  • 2011
TLDR
This work develops the first model of contact dynamics defined in both the forward and inverse directions, and implemented the proposed contact solver in the new physics engine (MuJoCo).
Rigid-Body Dynamics with Friction and Impact
  • D. Stewart
  • Computer Science, Mathematics
    SIAM Rev.
  • 2000
TLDR
This paper presents rigorous results about rigid-body dynamics with Coulomb friction and impulses, which have come from several sources: "sweeping processes" and the measure differential inclusions of Moreau in the 1970s and 1980s, the variational inequality approaches of Duvaut and J.-L.
Implicit Multibody Penalty-BasedDistributed Contact
TLDR
This work employs semi-implicit integration, exact analytical contact gradients, symbolic Gaussian elimination and a SVD solver to simulate stable penalty-based frictional contact with large, time-varying contact areas, involving many rigid objects and articulated rigid objects in complex conforming contact and self-contact.
Numerical Simulation of Time-Dependent Contact and Friction Problems in Rigid Body Mechanics
A numerical method is given for the solution of a system of ordinary differential equations and algebraic, unilateral constraints. The equations govern the motion of a mechanical system of rigid
Nonconvex rigid bodies with stacking
TLDR
A novel approach to time integration merging it with the collision and contact processing algorithms in a fashion that obviates the need for ad hoc threshold velocities is proposed and shown that this approach matches the theoretical solution for blocks sliding and stopping on inclined planes with friction.
Robust Contact Generation for Robot Simulation with Unstructured Meshes
TLDR
A new contact generation method that treats the geometry as having a thin virtual boundary layer around the underlying meshes undergoing forceful contact, which produces contact estimates that are stable with respect to small displacements, which helps avoid jitter or divergence in the simulator caused by oscillatory discontinuities.
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