Additional and Differential Harmonic Oscillations of a Cantilever in Dry Friction
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概要
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When a steel cantilever was rubbed against a rotating steel disk with periodic corrugation surface in dry friction, various non-linear oscillations were observed. In this paper, we investigate additional and differential harmonic oscillations (combination oscillations) out of these non-linear oscillations analytically and experimentally. (1) Without considering a loss of contact between the cantilever and the disk, we can approximately examine the generation of combination oscillations by the method of harmonic balance. (2) The existence of the combination oscillations is more affected by the non-linearities of velocities of the coefficient of friction than by those of displacements due to a deflection of the cantilever or elastic contact. These combination oscillations are excited when the coefficient of friction has a certain negative gradient against the sliding velocity. Thus, these oscillations are not excited under the constant coefficient of friction. (3) Additional harmonic oscillation is less excited than differential one.
- 一般社団法人日本機械学会の論文
著者
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Yokoi Masayuki
Junior College Of Osaka Industrial University
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NAKAl Mikio
Faculty of Engineering, Kyoto University
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Nakal Mikio
Faculty Of Engineering Kyoto University
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- Additional and Differential Harmonic Oscillations of a Cantilever in Dry Friction