The dynamic response of rotating ramjet rotor under flow induced force

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Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (3) : 150-156.

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The dynamic response of rotating ramjet rotor under flow induced force

LIU Zhan-sheng, KANG Wei-jia, ZHANG Guang-hui, WANG Le

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Abstract

The nonlinear model of flow induced force and finite element model of the rotating ramjet rotor- hybrid gas bearings system have been established on the basis of numerical simulation analysis of compression inlet flow field when rotating ramjet rotor whirls. The nonlinear dynamic response of the rotating ramjet rotor- hybrid gas bearings system with consideration of complex flow induced force are obtained by numerical simulation. The results show that supply pressure of gas bearing and rotor eccentricity have significant effect for vibration characteristics of the rotor-bearing system under complex flow induced force.

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rotating ramjet rotor / numerical simulation / flow induced force / dynamic response

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LIU Zhan-sheng;KANG Wei-jia;ZHANG Guang-hui;WANG Le. The dynamic response of rotating ramjet rotor under flow induced force[J]. Journal of Vibration and Shock, 2013, 32(3): 150-156