Notice of RetractionDynamics simulation efficiency of the chain-drive mechanism

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

On the simulation of the multi-contact constraints system, its computational efficiency is often inferior and even to solve the model in the simulation process in the crash, leading to the failure of computation. One of the reasons is the nature of the constraint is not currently involved in transient contact with the iterative calculation, so the solving matrix is large and the condition number of matrix increases, resulting in low efficiency for solving. To the efficiency of calculation, we utilize (de)active contact constraints real-timely to reduce the size of iterative calculations to improve the solution efficiency. The given method can improve computational efficiency obviously without losing solving precision for the dynamics simulation based on the chain-drive mechanism.