According to the gear meshing principle

based on tooth contact analysis of helical gear

the computer simulation of double helical gear meshing process under five different error conditions are carried out

the analysis and evaluation of quality of the tooth surface contact in the process of transmission are carried out

the contact path and transmission error curve in the process of meshing under five different error conditions are acquired.Through the observation of the simulation results

the influence of different error forms on transmission performance of double-helical gear is analyzed.The research is conducive to control the errors in design and manufacture process and has a great guiding significance for improving the transmission quality of double helical gear

it also provide the basic research to load tooth contact analysis.