For the dynamics response model of the drive belt timeliness poor

not close to the actual working conditions and other issues at present

by using linear complementarity theory and penalty methods

the simulation of the contact with the belt drive system between the belt and the drive wheels is carried out

and introduction of flat-node beam element based on the absolute coordinate method

the belt modeling is accomplished

the variation law of dynamics characteristic in the process of belt drive contact is researched.The results show that the loss of power transmission belt is significant

the pulleys angular velocity at the initial stage of the passive presence of significant fluctuations in the rotational speed of the drive pulley stable passive stabilizing.Due to the existence of a belt bending strength

under the condition of drive pulley wrap angle range of new method

to calculate the obvious peak of the force of per unit length and friction exist in the drive pulley transmission access and transmission quit

it is fit the actual working condition.In the process of belt drive

when the relative speed is zero

the drive pulley and the belt is viscous phase

when the relative speed is greater than zero

the driving pulley and the belt is slipping phase.