Whirl characteristics of a flexible liquid-filled rotor under thermal shock

Wang, Guangding; Yuan, Huiqun

doi:10.1016/j.apm.2020.03.020

Cited by 15 publications

(3 citation statements)

References 28 publications

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“…Furthermore, if imposing N = ν = 0 simultaneously, the critical spinning speed equation (42) then reduces towhich is identical to the critical speed calculated by using Euler–Bernoulli beam model (Wang and yuan 2020).…”

Section: Whirl Frequency Equation and Critical Spinning Speedmentioning

confidence: 72%

“…On the basis of thermoelastic theory, the axial thermal stress exerted on the rotor can be obtained as (Wang and Yuan, 2020)…”

Section: Thermal Axial Forcementioning

confidence: 99%

“…The problem was addressed in Laplace domain and the system stability was studied by using numerical technique. According to two-dimensional and three-dimensional flow theories, Wang and Yuan (2018, 2019a, 2020) and Wang et al (2020) analyzed the stability of a flexible liquid-filled rotor system theoretically. Then, they proposed the analytical model for the stability prediction of a flexible rotor partially filled with two liquid phases (Wang and Yuan, 2019b).…”

Section: Introductionmentioning

confidence: 99%

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Dynamics and stability analysis of a flexible liquid-filled rotor in a constant thermal environment

Wang

Yang

Yuan

2021

Journal of Vibration and Control

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In this study, the dynamics and stability of a flexible rotor containing liquid in a constant thermal environment are investigated. According to thermoelastic theory, the thermal axial force exerted on the rotor is calculated by using the analytical method. A spinning Rayleigh beam is used as a simplified model of the rotor. Applying the Hamilton principle, the governing equation of motion for the flexible liquid-filled rotor system is derived. Using the obtained model, the stability prediction model and the critical spinning speed for the rotor system are formulated. To demonstrate the validity of the developed model, the present analysis is compared with the results reported in the previous study, and good agreement is observed from the comparison results. Finally, numerical results based on the obtained model are performed for a better understanding of the parameters including filling parameters, mode number, rotatory inertia and thermal effect on the stability, and critical spinning speed of the rotor system.

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Section: Whirl Frequency Equation and Critical Spinning Speedmentioning

confidence: 72%

“…On the basis of thermoelastic theory, the axial thermal stress exerted on the rotor can be obtained as (Wang and Yuan, 2020)…”

Section: Thermal Axial Forcementioning

confidence: 99%