抄録
The improvements of static transmission error of gear pair for gear noise reduction have already reached the limit, and it has become increasingly difficult to estimate the gear noise with transmission error, especially in high frequency bands. We have developed a new method of analyzing the vibration of a helical gear system, making it possible to predict the influence of the entire gear train (consisting of the gear blanks, shafts, bearings and the gears themselves) on gear noise. In addition, to consider the influence of gear case conveniently, we developed the simplified estimation of high frequency gear noise.