| 横向流体激振力作用下的不平衡离心叶轮转子分岔特性研究 |
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| 引用本文： | 李同杰,孙启国,王娟.横向流体激振力作用下的不平衡离心叶轮转子分岔特性研究[J].振动与冲击,2007,26(4):144-146,150. |
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| 作者姓名： | 李同杰 孙启国 王娟 |
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| 作者单位： | 兰州交通大学,系统分析与集成研究所,兰州,730070 |
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| 基金项目： | 甘肃省自然科学基金;铁道部专荐基金 |
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| 摘 要： | 将叶轮转子系统简化为Jeffcott转子，建立了不平衡离心叶轮转子在非线性横向流体激振力和非线线轴承油膜力作用下的振动模型，并推导了系统的无量纲运动方程。运用数值积分法研究了系统的分岔特性。最后分析了横向流体激振力以及叶轮不平质量对离心叶轮系统动力学性能的影响。
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| 关 键 词： | 离心泵 流体激振力 非线性油膜力 分岔 |
| 修稿时间： | 2006-06-192006-07-05 |
STUDY ON BIFURCATION CHARACTERISTIC OF AN ECCENTRIC CENTRIFUGAL IMPELLER-ROTOR WITH LATERAL FLUID FORCE |
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| LI Tong-jie,SUN Qi-guo,WANG Juan.STUDY ON BIFURCATION CHARACTERISTIC OF AN ECCENTRIC CENTRIFUGAL IMPELLER-ROTOR WITH LATERAL FLUID FORCE[J].Journal of Vibration and Shock,2007,26(4):144-146,150. |
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| Authors: | LI Tong-jie SUN Qi-guo WANG Juan |
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| Abstract: | A centrifugal impeller system is simplified to a Jeffcott rotor system.The dynamic model of this eccentric centrifugal Impeller-rotor with both nonlinear lateral fluid force and nonlinear oil-film force is built and dimensionless equations of the system are derived.Its bifurcation characteristics are studied using the numerical integral method.The influence of the nonlinear lateral fluid force and the nonlinear oil film force on the dynamic characteristics of the system are analyzed in detail. |
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| Keywords: | centrifugal impeller lateral fluid force nonlinear oil-film force bifurcation |
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