日本機械学会論文集C編
Online ISSN : 1884-8354
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超音波振動による歯車歯面の摩擦力減少と潤滑性向上(歯車軸の設計と試作)
大岩 孝彰牧野 陽平佐藤 元宥朝間 淳一
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77 巻 (2011) 775 号 p. 737-741

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This study has proposed a method of frictional reduction and lubricity improvement for meshed gears, which is based on ultrasonic oscillation. This report describes gear and shaft design using the finite element analysis (FEA), and results of experiments using an ultrasonic actuator. First, the FEA calculated axial and radial amplitude of vibration on the shaft and gear surfaces. A modified gear profile improved the axial amplitude by 50 % as keeping the radial amplitude low. Next, a manufactured gear thermally-inserted to a shaft was oscillated by an ultrasonic transducer excited by two types of driving amplifiers. Measurement with laser Doppler vibrometer demonstrated that the axial and radial amplitudes of vibration were 1.3 μm(p-p) and 0.49 μm(p-p), respectively.

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© 2011 一般社団法人 日本機械学会
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