Dynamic behavior of geared rotors

Journal Article · Thu Jul 01 00:00:00 EDT 1999 · Journal of Engineering for Gas Turbines and Power

DOI:https://doi.org/10.1115/1.2818500· OSTI ID:678035

Shiau, T N ^[1]; Rao, J S ^[2]; Chang, J R; Choi, S T ^[3]

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1. National Chung Cheng Univ., Chia-Yi, (Taiwan, Province of China). Inst. of Mechanical Engineering
2. Indian Inst. of Tech., New Delhi (India)
3. National Cheng Kung Univ., Tainan (Taiwan, Province of China)

This paper is concerned with the dynamic behavior of geared rotor systems supported by squeeze film dampers, wherein coupled bending torsion vibrations occur. Considering the imbalance forces and gravity, it is shown that geared rotors exhibit chaotic behavior due to nonlinearity of damper forces. The route to chaos in such systems is established. In geared rotor systems, it is shown that torsional excitation can induce lateral vibrations. It is shown that squeeze film dampers can suppress large amplitudes of whirl arising out of torsional excitation.

• Sponsoring Organization: USDOE
• OSTI ID: 678035
• Report Number(s): CONF-970604--
• Journal Information: Journal of Engineering for Gas Turbines and Power, Journal Name: Journal of Engineering for Gas Turbines and Power Journal Issue: 3 Vol. 121; ISSN JETPEZ; ISSN 0742-4795
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
33 ADVANCED PROPULSION SYSTEMS
DAMPING
GAS TURBINES
MECHANICAL TRANSMISSIONS
MECHANICAL VIBRATIONS
ROTORS