Unstable Vibrations of an Unsymmetrical Shaft at the Secondary Critical Speed due to Ball Bearings

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概要

• 論文の詳細を見る

• It is clarified theoretically and experimentally that, when an unsymmetrical shaft is supported by single-row deep groove ball bearings, an unstable vibration with frequency +2ω (ω : rotating speed of a shaft) appears at the secondary critical speed due to the coexistence of a stationary directional difference and a rotating directional difference of stiffness. The stationary directional difference is due to the directional difference of support condition by means of a single-row deep groove ball bearing which has angular clearance, and the rotating directional difference is due to the flatness of the shaft. The width of this unstable region depends on the assembly of the system. No unstable vibration appears at the secondary critical speed in the system where an unsymmetrical shaft is supported by self-aligning double-row ball bearings and in an unsymmetrical rotor system.

• 一般社団法人日本機械学会の論文

著者

• Yamamoto Toshio

  Faculty Of Engineering Nagoya University

• 池田 高志

  東京工業大学大学院理工学研究科

• Ishida Yukio

  Nagoya University Department Of Electronic Mechanical Engineering

• Ishida Yukio

  Faculty Of Pharmaceutical Sciences The University Of Tokushima:faculty Of Home Economics Shikoku Wom

• Ishida Yukio

  Faculty Of Ceneral Education Nagoya University

• Ikeda T

  Nagoya Univ. Nagoya

• Yamamoto Tetsu

  Industrial Electronics And Systems Development Lab. Mitsubishi Electric Corporation

• Yamamoto Toshio

  Meijo University

• IKEDA Takashi

  Faculty of Engineering, Nagoya University

• Ikeda Takashi

  Faculty Of Agriculture Meiji University

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