2208 かみ合い伝達誤差における大きな振幅変調指数の可能性(歯車の設計・性能評価,一般講演)

概要

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Mesh frequency is affected by gear eccentricity. Large waviness in transmission error due to gear eccentricity is the prime cause of modulation. Large waviness causes an amplitude modulation of mesh frequency due to dynamic deflection of gear teeth. The spectral components are known as sidebands. Sideband spectrum consists of two components, whose amplitudes are calculated by modulation indices. Since the modulation indices of amplitude modulation are quite larger than those of frequency modulation in the case of conventional gear eccentricity, it is said that the influence of amplitude modulation dominates the power of sideband frequency. The amount of amplitude modulation is detected by transmission error measurement. From measured data, modulation indices are calculated using amplitude of mesh frequency components and amount of amplitude modulation. The results show that it is certain that modulation indices become large in the case of being applied the optimum tooth flank modification on gear teeth.
一般社団法人日本機械学会の論文
2008-04-20