Nonlinear Dynamic Behaviors of the Arc Tooth Connected Rotor under Different Loads | Zendy

Longkai Wang | Zendy; Qike Huang | Zendy; Ailun Wang | Zendy; Yijun Yin | Zendy; Xing Heng | Zendy

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Nonlinear Dynamic Behaviors of the Arc Tooth Connected Rotor under Different Loads

Author(s) -

Longkai Wang,

Qike Huang,

Ailun Wang,

Yijun Yin,

Xing Heng

Publication year - 2021

Publication title -

iop conference series earth and environmental science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.179

H-Index - 26

eISSN - 1755-1307

pISSN - 1755-1315

DOI - 10.1088/1755-1315/668/1/012084

Subject(s) - nonlinear system , vibration , arc (geometry) , bifurcation , rotor (electric) , spring (device) , stiffness , mechanics , tooth surface , structural engineering , periodic function , physics , control theory (sociology) , engineering , mathematics , mathematical analysis , computer science , acoustics , mechanical engineering , artificial intelligence , control (management) , quantum mechanics

Due to the wear of wheels during operation, the unbalance is induced. To study the nonlinear vibration of the arc tooth connected rotor under different loads, the motion equation was built based on Lagrange equation, considering contact property of the arc tooth and the oil-film force. From the GW rough surface model, the interface contact stiffness for the arc end-tooth was calculated. The eventual contact force was simulated by a nonlinear spring. Rich nonlinear dynamic phenomena, such as periodic doubling bifurcation phenomenon, multiperiodic motion, quasi periodic motion, oil whirl, etc., were observed. The results show distinct phenomena caused by the load variations. To reduce the nonsynchronous vibration, the relative phase is suggested to be kept at 120°.

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