| 含转轴裂纹的离心叶轮转子非线性动力学特性研究 |
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| 引用本文： | 李同杰,王娟,陈云香,孙启国. 含转轴裂纹的离心叶轮转子非线性动力学特性研究[J]. 振动与冲击, 2010, 29(11): 213-216. DOI: |
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| 作者姓名： | 李同杰 王娟 陈云香 孙启国 |
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| 作者单位： | 1安徽科技学院工学院，安徽 凤阳 233100；2青岛泰能天然气有限公司，山东 青岛 2660713 北方工业大学机电工程学院， 北京 100144 |
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| 基金项目： | 安徽科技学院引进(稳定)人才专项基金，教育部科学技术研究重点项目 |
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| 摘 要： | 建立了带有裂纹故障的的不平衡离心叶轮转子在非线性横向流体激振力和非线性轴承油膜力作用下的横向振动力学模型,并推导了系统的无量纲运动微分方程。运用数值积分法对系统的分岔特性进行了仿真。最后分析了横向流体激振力以及裂纹深度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 裂纹转子 流体激振力 非线性油膜力 分岔 |
| 收稿时间： | 2009-07-13 |
| 修稿时间： | 2010-08-01 |
Bifurcation characteristics of a cracked centrifugal impeller-rotor with lateral fluid force |
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| LI Tong-jie,WANG Juan,CHEN Yun-xiang,SUN Qi-guo. Bifurcation characteristics of a cracked centrifugal impeller-rotor with lateral fluid force[J]. Journal of Vibration and Shock, 2010, 29(11): 213-216. DOI: |
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| Authors: | LI Tong-jie WANG Juan CHEN Yun-xiang SUN Qi-guo |
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| Affiliation: | 1 College of Engineering, Anhui Science & Technology University, Fengyang 233100, China2 Taineng Nature Gas Co.,LTD, Xuzhou, Qingdao 2660713 College of Mechatronic Engineering, North China University of Technology, Beijing 100144, China |
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| Abstract: | The dynamic model of a cracked centrifugal Impeller-rotor with both nonlinear lateral fluid force and nonlinear oil-film force is built and dimensionless equations of the system are derived. The system’s bifurcation characteristics are studied using the numerical integral method. The influence of the nonlinear lateral fluid force and the depth of the crack on the system’s dynamic characteristics are analyzed in detail in the last part of the paper. |
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| Keywords: | Centrifugal impeller Cracked rotor Lateral fluid force nonlinear oil-film force bifurcation |
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