2024-03-28T13:38:34Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00007363
2023-01-16T03:52:53Z
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クリアランス内で衝突を伴うロータの非線形強制振動と自励振動 (1/2次分数調波共振付近の引込現象と結合振動)
Nonlinear Resonances and Self-Excited Oscillations of a Rotor Due to Impact in Radical Clearance of Bearings (Entrainment and Combination Oscillation at 1/2 Order Subharmonic Resonance)
稲垣, 瑞穂
INAGAKI, Mizuho
石田, 幸男
ISHIDA, Yukio
早川, 誠
HAYAKAWA, Makoto
安田, 聡
YASUDA, Satoshi
open access
日本機械学会
本文データは学協会の許諾に基づきCiNiiから複製したものである。
Rotor
Impact
Radial Clearance
Nonlinear Resonance
Entrainment
Self-Excited Oscillation
Subharmonics
Combination
van der Pol's equation
Oscillations around 1/2 order subharmonic resonance are investigated in a rotor system with a radial clearance between the bearing and the casing by numerical simulations and experiments. The following phenomena due to impact in the bearing are found: (1) Combination oscillations of [p_fーp_b=ω] and [3p_fーp_b=2ω] occur in lower speed range of + (1/2)ω resonance. (2) Entertainment phenomena occur in the speed range of +(1/2)ω resonance. (3) Oscillations of ωーp_f occur around the speed range of +(1/2) ω resonance with self-excited oscillation of p_f. Furthermore entrainment phenomena and coupling between self-excited oscillation of p_f and oscillation of ω-p_f are explained theoretically by a similar self-excited and forced oscillation model of nonlinear van der Pol's equation.
日本機械学会
2003-08
jpn
journal article
VoR
http://hdl.handle.net/2237/9044
https://nagoya.repo.nii.ac.jp/records/7363
http://ci.nii.ac.jp/naid/110002379086/
0387-5024
日本機械学會論文集 C編
69
684
1960
1967
https://nagoya.repo.nii.ac.jp/record/7363/files/JsMecEngC_69-684-1960.pdf
application/pdf
558.6 kB
2018-02-19