By using MATLAB software to calculate the theory tooth surface data points of orthogonal face gear

then using 3D modeling software Pro/E

the geometric model of the face gear is established

the face gear pair and the coordinate of the face gear.s theoretical contact patterns are got

and the visualizat ion of face gear contact trajectory is realized. By singlegear pair contact analysis and based on the Hertz theory

the mesh density of f inite element solver in convergence case is got and then contact patterns with multigear pairs is studied. The face gear transmission error in different conditions is studied by theoretical method and through simulation analysis. Then

a conclusion that in a set of three different load cases

the greater the torque load is applied to the face gear

the greater the transmission error there is

but the speed of face gear almost has no effect on the gear trans

mission error is obtained. When the face gear is installed with shaft angle of 0. 02°

its transmission error magnitude will be 2. 0

2

. 3 times bigger compared with installed without any error.