Based on the mechanism analysis of impact of mesh-out at corner contact in gear transmission

a calculation model including system equivalent error and teeth synthetic deformation was established on the line of meshing.The synthetic deformation of the point in mesh-out beyond the normal path was reversed

on basis of meshing theory and the curve of gear deformation and load-history.By combining the system equivalent error with the teeth synthetic deformation

the point of mesh-out at corner contact and the impacting point were determined.Given uniform normal velocity at meshing points

the minimum rotation speed of the driven gear in mesh-out at corner contact and the impact velocity were solved.And then the impact force of mesh-out at corner contact was confirmed.The example calculation shows that

the impact force of mesh-out at corner contact is 70% to 80% of that of mesh-in at corner contact; namely

the impact of mesh-out is smaller than that of mesh-in.It verifies that impact in mesh-out and mesh-in has a different effect on "mesh synthetic base pitch error".