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Turbocharger rotor dynamics with foundation excitation

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Abstract

To investigate the effect of foundation excitation on the dynamical behavior of a turbocharger, a dynamic model of a turbocharger rotor-bearing system is established which includes the engine’s foundation excitation and nonlinear lubricant force. The rotor vibration response of eccentricity is simulated by numerical calculation. The bifurcation and chaos behaviors of nonlinear rotor dynamics with various rotational speeds are studied. The results obtained by numerical simulation show that the differences of dynamic behavior between the turbocharger rotor systems with/without foundation excitation are obviously. With the foundation excitation, the dynamic behavior of rotor becomes more complicated, and develops into chaos state at a very low rotational speed.

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Authors and Affiliations

  1. State Key Laboratory of Mechanical System and Vibration, Shanghai JiaoTong University, 800 Dongchuan Rd., 200240, Shanghai, People’s Republic of China

    Guangchi Ying, Guang Meng & Jianping Jing

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  1. Guangchi Ying
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  2. Guang Meng
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  3. Jianping Jing
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Correspondence to Guang Meng.

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Ying, G., Meng, G. & Jing, J. Turbocharger rotor dynamics with foundation excitation. Arch Appl Mech 79, 287–299 (2009). https://doi.org/10.1007/s00419-008-0228-3

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  • DOI: https://doi.org/10.1007/s00419-008-0228-3

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