Unverified50% confidenceFactExact time
When multiple contact points exist simultaneously, mass ratios are extreme, or the time step is too large, the contact solver may fail to converge sufficiently, manifesting as object jitter, slow sinking, or objects slipping out of the grasp.
1
Sources
50%
Confidence
Long-term
Relevance
10/31/2026
First Seen
Sources
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Related Claims
UnverifiedThe core challenge of contact-rich tasks lies in the physical discontinuities introduced by contact, where force direction, friction coefficients, and object deformation change drastically within milliseconds, forming hybrid systems that are difficult for traditional differential-equation-based control methods to handle.71% similarUnverifiedCommon approaches to mitigating contact stability issues include reducing the simulation time step, increasing solver iterations, lowering object mass ratios, tuning contact stiffness and damping, and absorbing residual errors with impedance control at the joint actuation level.64% similarUnverifiedIn Forward Dynamics, nonlinear factors such as contact forces, deformation, and friction cause errors to accumulate rapidly in long-horizon prediction.64% similar
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