201 水平支持されたジェフコットロータに発生する1/2次分数調波共振

• 小倉 健太郎

  筑波大院

• 藪野 浩司

  慶應大

• 井上 剛志

  名古屋大院

• 石田 幸男

  名古屋大院

書誌事項

タイトル別名

• 201 1/2-Order subharmonic resonance in Horizontally Supported Jeffcott Rotor

抄録

This study deal with nonlinear dynamics of a horizontally supported Jffcott rotor. When the rotational speed of the rotor is in the neighborhood of twice the natural frequency, it is expected that 1/2-order subharmonic resonance can be produced. By applying the method of multiple scales to the dimensionless equations of motions, we describe the linear unstable region which corresponds to the bifurcation set of sub-harmonic resonance and theoretically predict the occurence. Furthermore, using a simple apparatus, we experimentally confirm the prediction and clarify the nonlinear characteristics of the frequency response curve. While the frequency responce curve is hard-spring type in the case of the lower resonance in the lateral direction, it is soft-spring type in the case of the higher one. These nonlineaer characteristics correspond to those of the backbone curves clarified in the previous study.

収録刊行物

• Dynamics & Design Conference

  Dynamics & Design Conference 2009 (0), _201-1_-_201-5_, 2009

  一般社団法人 日本機械学会

キーワード

• Nonlinear Analysis
• Horizontally Supported Rotor
• Jeffcott Rotor
• Subharmonic Resonances

詳細情報

• CRID: 1390282680866299136
• NII論文ID: 110008009052
• DOI: 10.1299/jsmedmc.2009._201-1_
• ISSN: 24242993
• Web Site: https://www.jstage.jst.go.jp/article/jsmedmc/2009/0/2009__201-1_/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可