5130 歯車偏心がかみ合い周波数におよぼす振幅変調の影響(S63-6 振動(2),S63 伝動装置の基礎と応用)

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 waviness is calculated by the approximate formula of transmission error with gear eccentricity obtained by the authors. By assuming that the mesh wave is purely sinusoidal, the modulated spectrum is calculated theoretically. The obtained 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.
一般社団法人日本機械学会の論文
2006-09-15